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6e3554407bWorking on AI SDK compatible backends for OpenAI and Anthropic. Thinking + ToolUse etc. For use with AI SDK useChat on frontend. Still needs more testing, WIP, but this is a good start. Want to get this committed to so I can work on more integrations.
111 KiB
111 KiB
Messages
Send a structured list of input messages with text and/or image content, and the model will generate the next message in the conversation.
The Messages API can be used for either single queries or stateless multi-turn conversations.
Learn more about the Messages API in our user guide
OpenAPI
paths:
path: /v1/messages
method: post
servers:
- url: https://api.anthropic.com
request:
security: []
parameters:
path: {}
query: {}
header:
anthropic-beta:
schema:
- type: array
items:
allOf:
- type: string
required: false
title: Anthropic-Beta
description: >-
Optional header to specify the beta version(s) you want to use.
To use multiple betas, use a comma separated list like
`beta1,beta2` or specify the header multiple times for each
beta.
anthropic-version:
schema:
- type: string
required: true
title: Anthropic-Version
description: >-
The version of the Anthropic API you want to use.
Read more about versioning and our version history
[here](https://docs.anthropic.com/en/api/versioning).
x-api-key:
schema:
- type: string
required: true
title: X-Api-Key
description: >-
Your unique API key for authentication.
This key is required in the header of all API requests, to
authenticate your account and access Anthropic's services. Get
your API key through the
[Console](https://console.anthropic.com/settings/keys). Each key
is scoped to a Workspace.
cookie: {}
body:
application/json:
schemaArray:
- type: object
properties:
model:
allOf:
- description: >-
The model that will complete your prompt.
See
[models](https://docs.anthropic.com/en/docs/models-overview)
for additional details and options.
examples:
- claude-sonnet-4-20250514
maxLength: 256
minLength: 1
title: Model
type: string
messages:
allOf:
- description: >-
Input messages.
Our models are trained to operate on alternating `user`
and `assistant` conversational turns. When creating a new
`Message`, you specify the prior conversational turns with
the `messages` parameter, and the model then generates the
next `Message` in the conversation. Consecutive `user` or
`assistant` turns in your request will be combined into a
single turn.
Each input message must be an object with a `role` and
`content`. You can specify a single `user`-role message,
or you can include multiple `user` and `assistant`
messages.
If the final message uses the `assistant` role, the
response content will continue immediately from the
content in that message. This can be used to constrain
part of the model's response.
Example with a single `user` message:
```json
[{"role": "user", "content": "Hello, Claude"}]
```
Example with multiple conversational turns:
```json
[
{"role": "user", "content": "Hello there."},
{"role": "assistant", "content": "Hi, I'm Claude. How can I help you?"},
{"role": "user", "content": "Can you explain LLMs in plain English?"},
]
```
Example with a partially-filled response from Claude:
```json
[
{"role": "user", "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"},
{"role": "assistant", "content": "The best answer is ("},
]
```
Each input message `content` may be either a single
`string` or an array of content blocks, where each block
has a specific `type`. Using a `string` for `content` is
shorthand for an array of one content block of type
`"text"`. The following input messages are equivalent:
```json
{"role": "user", "content": "Hello, Claude"}
```
```json
{"role": "user", "content": [{"type": "text", "text":
"Hello, Claude"}]}
```
See
[examples](https://docs.anthropic.com/en/api/messages-examples)
for more input examples.
Note that if you want to include a [system
prompt](https://docs.anthropic.com/en/docs/system-prompts),
you can use the top-level `system` parameter — there is no
`"system"` role for input messages in the Messages API.
There is a limit of 100,000 messages in a single request.
items:
$ref: "#/components/schemas/InputMessage"
title: Messages
type: array
container:
allOf:
- anyOf:
- type: string
- type: "null"
description: Container identifier for reuse across requests.
title: Container
max_tokens:
allOf:
- description: >-
The maximum number of tokens to generate before stopping.
Note that our models may stop _before_ reaching this
maximum. This parameter only specifies the absolute
maximum number of tokens to generate.
Different models have different maximum values for this
parameter. See
[models](https://docs.anthropic.com/en/docs/models-overview)
for details.
examples:
- 1024
minimum: 1
title: Max Tokens
type: integer
mcp_servers:
allOf:
- description: MCP servers to be utilized in this request
items:
$ref: "#/components/schemas/RequestMCPServerURLDefinition"
maxItems: 20
title: Mcp Servers
type: array
metadata:
allOf:
- $ref: "#/components/schemas/Metadata"
description: An object describing metadata about the request.
service_tier:
allOf:
- description: >-
Determines whether to use priority capacity (if available)
or standard capacity for this request.
Anthropic offers different levels of service for your API
requests. See
[service-tiers](https://docs.anthropic.com/en/api/service-tiers)
for details.
enum:
- auto
- standard_only
title: Service Tier
type: string
stop_sequences:
allOf:
- description: >-
Custom text sequences that will cause the model to stop
generating.
Our models will normally stop when they have naturally
completed their turn, which will result in a response
`stop_reason` of `"end_turn"`.
If you want the model to stop generating when it
encounters custom strings of text, you can use the
`stop_sequences` parameter. If the model encounters one of
the custom sequences, the response `stop_reason` value
will be `"stop_sequence"` and the response `stop_sequence`
value will contain the matched stop sequence.
items:
type: string
title: Stop Sequences
type: array
stream:
allOf:
- description: >-
Whether to incrementally stream the response using
server-sent events.
See
[streaming](https://docs.anthropic.com/en/api/messages-streaming)
for details.
title: Stream
type: boolean
system:
allOf:
- anyOf:
- type: string
- items:
$ref: "#/components/schemas/RequestTextBlock"
type: array
description: >-
System prompt.
A system prompt is a way of providing context and
instructions to Claude, such as specifying a particular
goal or role. See our [guide to system
prompts](https://docs.anthropic.com/en/docs/system-prompts).
examples:
- - text: Today's date is 2024-06-01.
type: text
- Today's date is 2023-01-01.
title: System
temperature:
allOf:
- description: >-
Amount of randomness injected into the response.
Defaults to `1.0`. Ranges from `0.0` to `1.0`. Use
`temperature` closer to `0.0` for analytical / multiple
choice, and closer to `1.0` for creative and generative
tasks.
Note that even with `temperature` of `0.0`, the results
will not be fully deterministic.
examples:
- 1
maximum: 1
minimum: 0
title: Temperature
type: number
thinking:
allOf:
- description: >-
Configuration for enabling Claude's extended thinking.
When enabled, responses include `thinking` content blocks
showing Claude's thinking process before the final answer.
Requires a minimum budget of 1,024 tokens and counts
towards your `max_tokens` limit.
See [extended
thinking](https://docs.anthropic.com/en/docs/build-with-claude/extended-thinking)
for details.
discriminator:
mapping:
disabled: "#/components/schemas/ThinkingConfigDisabled"
enabled: "#/components/schemas/ThinkingConfigEnabled"
propertyName: type
oneOf:
- $ref: "#/components/schemas/ThinkingConfigEnabled"
- $ref: "#/components/schemas/ThinkingConfigDisabled"
tool_choice:
allOf:
- description: >-
How the model should use the provided tools. The model can
use a specific tool, any available tool, decide by itself,
or not use tools at all.
discriminator:
mapping:
any: "#/components/schemas/ToolChoiceAny"
auto: "#/components/schemas/ToolChoiceAuto"
none: "#/components/schemas/ToolChoiceNone"
tool: "#/components/schemas/ToolChoiceTool"
propertyName: type
oneOf:
- $ref: "#/components/schemas/ToolChoiceAuto"
- $ref: "#/components/schemas/ToolChoiceAny"
- $ref: "#/components/schemas/ToolChoiceTool"
- $ref: "#/components/schemas/ToolChoiceNone"
tools:
allOf:
- description: >-
Definitions of tools that the model may use.
If you include `tools` in your API request, the model may
return `tool_use` content blocks that represent the
model's use of those tools. You can then run those tools
using the tool input generated by the model and then
optionally return results back to the model using
`tool_result` content blocks.
There are two types of tools: **client tools** and
**server tools**. The behavior described below applies to
client tools. For [server
tools](https://docs.anthropic.com/en/docs/agents-and-tools/tool-use/overview\#server-tools),
see their individual documentation as each has its own
behavior (e.g., the [web search
tool](https://docs.anthropic.com/en/docs/agents-and-tools/tool-use/web-search-tool)).
Each tool definition includes:
* `name`: Name of the tool.
* `description`: Optional, but strongly-recommended
description of the tool.
* `input_schema`: [JSON
schema](https://json-schema.org/draft/2020-12) for the
tool `input` shape that the model will produce in
`tool_use` output content blocks.
For example, if you defined `tools` as:
```json
[
{
"name": "get_stock_price",
"description": "Get the current stock price for a given ticker symbol.",
"input_schema": {
"type": "object",
"properties": {
"ticker": {
"type": "string",
"description": "The stock ticker symbol, e.g. AAPL for Apple Inc."
}
},
"required": ["ticker"]
}
}
]
```
And then asked the model "What's the S&P 500 at today?",
the model might produce `tool_use` content blocks in the
response like this:
```json
[
{
"type": "tool_use",
"id": "toolu_01D7FLrfh4GYq7yT1ULFeyMV",
"name": "get_stock_price",
"input": { "ticker": "^GSPC" }
}
]
```
You might then run your `get_stock_price` tool with
`{"ticker": "^GSPC"}` as an input, and return the
following back to the model in a subsequent `user`
message:
```json
[
{
"type": "tool_result",
"tool_use_id": "toolu_01D7FLrfh4GYq7yT1ULFeyMV",
"content": "259.75 USD"
}
]
```
Tools can be used for workflows that include running
client-side tools and functions, or more generally
whenever you want the model to produce a particular JSON
structure of output.
See our
[guide](https://docs.anthropic.com/en/docs/tool-use) for
more details.
examples:
- description: Get the current weather in a given location
input_schema:
properties:
location:
description: The city and state, e.g. San Francisco, CA
type: string
unit:
description: >-
Unit for the output - one of (celsius,
fahrenheit)
type: string
required:
- location
type: object
name: get_weather
items:
oneOf:
- $ref: "#/components/schemas/Tool"
- $ref: "#/components/schemas/BashTool_20241022"
- $ref: "#/components/schemas/BashTool_20250124"
- $ref: "#/components/schemas/CodeExecutionTool_20250522"
- $ref: "#/components/schemas/ComputerUseTool_20241022"
- $ref: "#/components/schemas/ComputerUseTool_20250124"
- $ref: "#/components/schemas/TextEditor_20241022"
- $ref: "#/components/schemas/TextEditor_20250124"
- $ref: "#/components/schemas/TextEditor_20250429"
- $ref: "#/components/schemas/TextEditor_20250728"
- $ref: "#/components/schemas/WebSearchTool_20250305"
title: Tools
type: array
top_k:
allOf:
- description: >-
Only sample from the top K options for each subsequent
token.
Used to remove "long tail" low probability responses.
[Learn more technical details
here](https://towardsdatascience.com/how-to-sample-from-language-models-682bceb97277).
Recommended for advanced use cases only. You usually only
need to use `temperature`.
examples:
- 5
minimum: 0
title: Top K
type: integer
top_p:
allOf:
- description: >-
Use nucleus sampling.
In nucleus sampling, we compute the cumulative
distribution over all the options for each subsequent
token in decreasing probability order and cut it off once
it reaches a particular probability specified by `top_p`.
You should either alter `temperature` or `top_p`, but not
both.
Recommended for advanced use cases only. You usually only
need to use `temperature`.
examples:
- 0.7
maximum: 1
minimum: 0
title: Top P
type: number
required: true
title: CreateMessageParams
requiredProperties:
- model
- messages
- max_tokens
additionalProperties: false
example:
max_tokens: 1024
messages:
- content: Hello, world
role: user
model: claude-sonnet-4-20250514
examples:
example:
value:
max_tokens: 1024
messages:
- content: Hello, world
role: user
model: claude-sonnet-4-20250514
codeSamples:
- lang: bash
source: |-
curl https://api.anthropic.com/v1/messages \
--header "x-api-key: $ANTHROPIC_API_KEY" \
--header "anthropic-version: 2023-06-01" \
--header "content-type: application/json" \
--data \
'{
"model": "claude-sonnet-4-20250514",
"max_tokens": 1024,
"messages": [
{"role": "user", "content": "Hello, world"}
]
}'
- lang: python
source: |-
import anthropic
anthropic.Anthropic().messages.create(
model="claude-sonnet-4-20250514",
max_tokens=1024,
messages=[
{"role": "user", "content": "Hello, world"}
]
)
- lang: javascript
source: |-
import { Anthropic } from '@anthropic-ai/sdk';
const anthropic = new Anthropic();
await anthropic.messages.create({
model: "claude-sonnet-4-20250514",
max_tokens: 1024,
messages: [
{"role": "user", "content": "Hello, world"}
]
});
response:
"200":
application/json:
schemaArray:
- type: object
properties:
id:
allOf:
- description: |-
Unique object identifier.
The format and length of IDs may change over time.
examples:
- msg_013Zva2CMHLNnXjNJJKqJ2EF
title: Id
type: string
type:
allOf:
- const: message
default: message
description: |-
Object type.
For Messages, this is always `"message"`.
enum:
- message
title: Type
type: string
role:
allOf:
- const: assistant
default: assistant
description: |-
Conversational role of the generated message.
This will always be `"assistant"`.
enum:
- assistant
title: Role
type: string
content:
allOf:
- description: >-
Content generated by the model.
This is an array of content blocks, each of which has a
`type` that determines its shape.
Example:
```json
[{"type": "text", "text": "Hi, I'm Claude."}]
```
If the request input `messages` ended with an `assistant`
turn, then the response `content` will continue directly
from that last turn. You can use this to constrain the
model's output.
For example, if the input `messages` were:
```json
[
{"role": "user", "content": "What's the Greek name for Sun? (A) Sol (B) Helios (C) Sun"},
{"role": "assistant", "content": "The best answer is ("}
]
```
Then the response `content` might be:
```json
[{"type": "text", "text": "B)"}]
```
examples:
- - text: Hi! My name is Claude.
type: text
items:
discriminator:
mapping:
code_execution_tool_result: >-
#/components/schemas/ResponseCodeExecutionToolResultBlock
container_upload: "#/components/schemas/ResponseContainerUploadBlock"
mcp_tool_result: "#/components/schemas/ResponseMCPToolResultBlock"
mcp_tool_use: "#/components/schemas/ResponseMCPToolUseBlock"
redacted_thinking: "#/components/schemas/ResponseRedactedThinkingBlock"
server_tool_use: "#/components/schemas/ResponseServerToolUseBlock"
text: "#/components/schemas/ResponseTextBlock"
thinking: "#/components/schemas/ResponseThinkingBlock"
tool_use: "#/components/schemas/ResponseToolUseBlock"
web_search_tool_result: >-
#/components/schemas/ResponseWebSearchToolResultBlock
propertyName: type
oneOf:
- $ref: "#/components/schemas/ResponseTextBlock"
- $ref: "#/components/schemas/ResponseThinkingBlock"
- $ref: "#/components/schemas/ResponseRedactedThinkingBlock"
- $ref: "#/components/schemas/ResponseToolUseBlock"
- $ref: "#/components/schemas/ResponseServerToolUseBlock"
- $ref: >-
#/components/schemas/ResponseWebSearchToolResultBlock
- $ref: >-
#/components/schemas/ResponseCodeExecutionToolResultBlock
- $ref: "#/components/schemas/ResponseMCPToolUseBlock"
- $ref: "#/components/schemas/ResponseMCPToolResultBlock"
- $ref: "#/components/schemas/ResponseContainerUploadBlock"
title: Content
type: array
model:
allOf:
- description: The model that handled the request.
examples:
- claude-sonnet-4-20250514
maxLength: 256
minLength: 1
title: Model
type: string
stop_reason:
allOf:
- anyOf:
- enum:
- end_turn
- max_tokens
- stop_sequence
- tool_use
- pause_turn
- refusal
type: string
- type: "null"
description: >-
The reason that we stopped.
This may be one the following values:
* `"end_turn"`: the model reached a natural stopping point
* `"max_tokens"`: we exceeded the requested `max_tokens`
or the model's maximum
* `"stop_sequence"`: one of your provided custom
`stop_sequences` was generated
* `"tool_use"`: the model invoked one or more tools
* `"pause_turn"`: we paused a long-running turn. You may
provide the response back as-is in a subsequent request to
let the model continue.
* `"refusal"`: when streaming classifiers intervene to
handle potential policy violations
In non-streaming mode this value is always non-null. In
streaming mode, it is null in the `message_start` event
and non-null otherwise.
title: Stop Reason
stop_sequence:
allOf:
- anyOf:
- type: string
- type: "null"
default: null
description: >-
Which custom stop sequence was generated, if any.
This value will be a non-null string if one of your custom
stop sequences was generated.
title: Stop Sequence
usage:
allOf:
- $ref: "#/components/schemas/Usage"
description: >-
Billing and rate-limit usage.
Anthropic's API bills and rate-limits by token counts, as
tokens represent the underlying cost to our systems.
Under the hood, the API transforms requests into a format
suitable for the model. The model's output then goes
through a parsing stage before becoming an API response.
As a result, the token counts in `usage` will not match
one-to-one with the exact visible content of an API
request or response.
For example, `output_tokens` will be non-zero, even for an
empty string response from Claude.
Total input tokens in a request is the summation of
`input_tokens`, `cache_creation_input_tokens`, and
`cache_read_input_tokens`.
examples:
- input_tokens: 2095
output_tokens: 503
container:
allOf:
- anyOf:
- $ref: "#/components/schemas/Container"
- type: "null"
default: null
description: >-
Information about the container used in this request.
This will be non-null if a container tool (e.g. code
execution) was used.
title: Message
examples:
- content: &ref_0
- text: Hi! My name is Claude.
type: text
id: msg_013Zva2CMHLNnXjNJJKqJ2EF
model: claude-sonnet-4-20250514
role: assistant
stop_reason: end_turn
stop_sequence: null
type: message
usage: &ref_1
input_tokens: 2095
output_tokens: 503
requiredProperties:
- id
- type
- role
- content
- model
- stop_reason
- stop_sequence
- usage
- container
example:
content: *ref_0
id: msg_013Zva2CMHLNnXjNJJKqJ2EF
model: claude-sonnet-4-20250514
role: assistant
stop_reason: end_turn
stop_sequence: null
type: message
usage: *ref_1
examples:
example:
value:
content:
- text: Hi! My name is Claude.
type: text
id: msg_013Zva2CMHLNnXjNJJKqJ2EF
model: claude-sonnet-4-20250514
role: assistant
stop_reason: end_turn
stop_sequence: null
type: message
usage:
input_tokens: 2095
output_tokens: 503
description: Message object.
4XX:
application/json:
schemaArray:
- type: object
properties:
error:
allOf:
- discriminator:
mapping:
api_error: "#/components/schemas/APIError"
authentication_error: "#/components/schemas/AuthenticationError"
billing_error: "#/components/schemas/BillingError"
invalid_request_error: "#/components/schemas/InvalidRequestError"
not_found_error: "#/components/schemas/NotFoundError"
overloaded_error: "#/components/schemas/OverloadedError"
permission_error: "#/components/schemas/PermissionError"
rate_limit_error: "#/components/schemas/RateLimitError"
timeout_error: "#/components/schemas/GatewayTimeoutError"
propertyName: type
oneOf:
- $ref: "#/components/schemas/InvalidRequestError"
- $ref: "#/components/schemas/AuthenticationError"
- $ref: "#/components/schemas/BillingError"
- $ref: "#/components/schemas/PermissionError"
- $ref: "#/components/schemas/NotFoundError"
- $ref: "#/components/schemas/RateLimitError"
- $ref: "#/components/schemas/GatewayTimeoutError"
- $ref: "#/components/schemas/APIError"
- $ref: "#/components/schemas/OverloadedError"
title: Error
type:
allOf:
- const: error
default: error
enum:
- error
title: Type
type: string
title: ErrorResponse
requiredProperties:
- error
- type
examples:
example:
value:
error:
message: Invalid request
type: invalid_request_error
type: error
description: >-
Error response.
See our [errors
documentation](https://docs.anthropic.com/en/api/errors) for more
details.
deprecated: false
type: path
components:
schemas:
APIError:
properties:
message:
default: Internal server error
title: Message
type: string
type:
const: api_error
default: api_error
enum:
- api_error
title: Type
type: string
required:
- message
- type
title: APIError
type: object
AuthenticationError:
properties:
message:
default: Authentication error
title: Message
type: string
type:
const: authentication_error
default: authentication_error
enum:
- authentication_error
title: Type
type: string
required:
- message
- type
title: AuthenticationError
type: object
Base64ImageSource:
additionalProperties: false
properties:
data:
format: byte
title: Data
type: string
media_type:
enum:
- image/jpeg
- image/png
- image/gif
- image/webp
title: Media Type
type: string
type:
const: base64
enum:
- base64
title: Type
type: string
required:
- data
- media_type
- type
title: Base64ImageSource
type: object
Base64PDFSource:
additionalProperties: false
properties:
data:
format: byte
title: Data
type: string
media_type:
const: application/pdf
enum:
- application/pdf
title: Media Type
type: string
type:
const: base64
enum:
- base64
title: Type
type: string
required:
- data
- media_type
- type
title: PDF (base64)
type: object
BashTool_20241022:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
name:
const: bash
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- bash
title: Name
type: string
type:
const: bash_20241022
enum:
- bash_20241022
title: Type
type: string
required:
- name
- type
title: Bash tool (2024-10-22)
type: object
BashTool_20250124:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
name:
const: bash
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- bash
title: Name
type: string
type:
const: bash_20250124
enum:
- bash_20250124
title: Type
type: string
required:
- name
- type
title: Bash tool (2025-01-24)
type: object
BillingError:
properties:
message:
default: Billing error
title: Message
type: string
type:
const: billing_error
default: billing_error
enum:
- billing_error
title: Type
type: string
required:
- message
- type
title: BillingError
type: object
CacheControlEphemeral:
additionalProperties: false
properties:
ttl:
description: |-
The time-to-live for the cache control breakpoint.
This may be one the following values:
- `5m`: 5 minutes
- `1h`: 1 hour
Defaults to `5m`.
enum:
- 5m
- 1h
title: Ttl
type: string
type:
const: ephemeral
enum:
- ephemeral
title: Type
type: string
required:
- type
title: CacheControlEphemeral
type: object
CacheCreation:
properties:
ephemeral_1h_input_tokens:
default: 0
description: The number of input tokens used to create the 1 hour cache entry.
minimum: 0
title: Ephemeral 1H Input Tokens
type: integer
ephemeral_5m_input_tokens:
default: 0
description: The number of input tokens used to create the 5 minute cache entry.
minimum: 0
title: Ephemeral 5M Input Tokens
type: integer
required:
- ephemeral_1h_input_tokens
- ephemeral_5m_input_tokens
title: CacheCreation
type: object
CodeExecutionToolResultErrorCode:
enum:
- invalid_tool_input
- unavailable
- too_many_requests
- execution_time_exceeded
title: CodeExecutionToolResultErrorCode
type: string
CodeExecutionTool_20250522:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
name:
const: code_execution
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- code_execution
title: Name
type: string
type:
const: code_execution_20250522
enum:
- code_execution_20250522
title: Type
type: string
required:
- name
- type
title: Code execution tool (2025-05-22)
type: object
ComputerUseTool_20241022:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
display_height_px:
description: The height of the display in pixels.
minimum: 1
title: Display Height Px
type: integer
display_number:
anyOf:
- minimum: 0
type: integer
- type: "null"
description: The X11 display number (e.g. 0, 1) for the display.
title: Display Number
display_width_px:
description: The width of the display in pixels.
minimum: 1
title: Display Width Px
type: integer
name:
const: computer
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- computer
title: Name
type: string
type:
const: computer_20241022
enum:
- computer_20241022
title: Type
type: string
required:
- display_height_px
- display_width_px
- name
- type
title: Computer use tool (2024-01-22)
type: object
ComputerUseTool_20250124:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
display_height_px:
description: The height of the display in pixels.
minimum: 1
title: Display Height Px
type: integer
display_number:
anyOf:
- minimum: 0
type: integer
- type: "null"
description: The X11 display number (e.g. 0, 1) for the display.
title: Display Number
display_width_px:
description: The width of the display in pixels.
minimum: 1
title: Display Width Px
type: integer
name:
const: computer
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- computer
title: Name
type: string
type:
const: computer_20250124
enum:
- computer_20250124
title: Type
type: string
required:
- display_height_px
- display_width_px
- name
- type
title: Computer use tool (2025-01-24)
type: object
Container:
description: >-
Information about the container used in the request (for the code
execution tool)
properties:
expires_at:
description: The time at which the container will expire.
format: date-time
title: Expires At
type: string
id:
description: Identifier for the container used in this request
title: Id
type: string
required:
- expires_at
- id
title: Container
type: object
ContentBlockSource:
additionalProperties: false
properties:
content:
anyOf:
- type: string
- items:
discriminator:
mapping:
image: "#/components/schemas/RequestImageBlock"
text: "#/components/schemas/RequestTextBlock"
propertyName: type
oneOf:
- $ref: "#/components/schemas/RequestTextBlock"
- $ref: "#/components/schemas/RequestImageBlock"
type: array
title: Content
type:
const: content
enum:
- content
title: Type
type: string
required:
- content
- type
title: Content block
type: object
FileDocumentSource:
additionalProperties: false
properties:
file_id:
title: File Id
type: string
type:
const: file
enum:
- file
title: Type
type: string
required:
- file_id
- type
title: File document
type: object
FileImageSource:
additionalProperties: false
properties:
file_id:
title: File Id
type: string
type:
const: file
enum:
- file
title: Type
type: string
required:
- file_id
- type
title: FileImageSource
type: object
GatewayTimeoutError:
properties:
message:
default: Request timeout
title: Message
type: string
type:
const: timeout_error
default: timeout_error
enum:
- timeout_error
title: Type
type: string
required:
- message
- type
title: GatewayTimeoutError
type: object
InputMessage:
additionalProperties: false
properties:
content:
anyOf:
- type: string
- items:
discriminator:
mapping:
code_execution_tool_result: "#/components/schemas/RequestCodeExecutionToolResultBlock"
container_upload: "#/components/schemas/RequestContainerUploadBlock"
document: "#/components/schemas/RequestDocumentBlock"
image: "#/components/schemas/RequestImageBlock"
mcp_tool_result: "#/components/schemas/RequestMCPToolResultBlock"
mcp_tool_use: "#/components/schemas/RequestMCPToolUseBlock"
redacted_thinking: "#/components/schemas/RequestRedactedThinkingBlock"
search_result: "#/components/schemas/RequestSearchResultBlock"
server_tool_use: "#/components/schemas/RequestServerToolUseBlock"
text: "#/components/schemas/RequestTextBlock"
thinking: "#/components/schemas/RequestThinkingBlock"
tool_result: "#/components/schemas/RequestToolResultBlock"
tool_use: "#/components/schemas/RequestToolUseBlock"
web_search_tool_result: "#/components/schemas/RequestWebSearchToolResultBlock"
propertyName: type
oneOf:
- $ref: "#/components/schemas/RequestTextBlock"
description: Regular text content.
- $ref: "#/components/schemas/RequestImageBlock"
description: >-
Image content specified directly as base64 data or as a
reference via a URL.
- $ref: "#/components/schemas/RequestDocumentBlock"
description: >-
Document content, either specified directly as base64
data, as text, or as a reference via a URL.
- $ref: "#/components/schemas/RequestSearchResultBlock"
description: >-
A search result block containing source, title, and
content from search operations.
- $ref: "#/components/schemas/RequestThinkingBlock"
description: A block specifying internal thinking by the model.
- $ref: "#/components/schemas/RequestRedactedThinkingBlock"
description: >-
A block specifying internal, redacted thinking by the
model.
- $ref: "#/components/schemas/RequestToolUseBlock"
description: A block indicating a tool use by the model.
- $ref: "#/components/schemas/RequestToolResultBlock"
description: A block specifying the results of a tool use by the model.
- $ref: "#/components/schemas/RequestServerToolUseBlock"
- $ref: "#/components/schemas/RequestWebSearchToolResultBlock"
- $ref: "#/components/schemas/RequestCodeExecutionToolResultBlock"
- $ref: "#/components/schemas/RequestMCPToolUseBlock"
- $ref: "#/components/schemas/RequestMCPToolResultBlock"
- $ref: "#/components/schemas/RequestContainerUploadBlock"
type: array
title: Content
role:
enum:
- user
- assistant
title: Role
type: string
required:
- content
- role
title: InputMessage
type: object
InputSchema:
additionalProperties: true
properties:
properties:
anyOf:
- type: object
- type: "null"
title: Properties
required:
anyOf:
- items:
type: string
type: array
- type: "null"
title: Required
type:
const: object
enum:
- object
title: Type
type: string
required:
- type
title: InputSchema
type: object
InvalidRequestError:
properties:
message:
default: Invalid request
title: Message
type: string
type:
const: invalid_request_error
default: invalid_request_error
enum:
- invalid_request_error
title: Type
type: string
required:
- message
- type
title: InvalidRequestError
type: object
Metadata:
additionalProperties: false
properties:
user_id:
anyOf:
- maxLength: 256
type: string
- type: "null"
description: >-
An external identifier for the user who is associated with the
request.
This should be a uuid, hash value, or other opaque identifier.
Anthropic may use this id to help detect abuse. Do not include any
identifying information such as name, email address, or phone
number.
examples:
- 13803d75-b4b5-4c3e-b2a2-6f21399b021b
title: User Id
title: Metadata
type: object
NotFoundError:
properties:
message:
default: Not found
title: Message
type: string
type:
const: not_found_error
default: not_found_error
enum:
- not_found_error
title: Type
type: string
required:
- message
- type
title: NotFoundError
type: object
OverloadedError:
properties:
message:
default: Overloaded
title: Message
type: string
type:
const: overloaded_error
default: overloaded_error
enum:
- overloaded_error
title: Type
type: string
required:
- message
- type
title: OverloadedError
type: object
PermissionError:
properties:
message:
default: Permission denied
title: Message
type: string
type:
const: permission_error
default: permission_error
enum:
- permission_error
title: Type
type: string
required:
- message
- type
title: PermissionError
type: object
PlainTextSource:
additionalProperties: false
properties:
data:
title: Data
type: string
media_type:
const: text/plain
enum:
- text/plain
title: Media Type
type: string
type:
const: text
enum:
- text
title: Type
type: string
required:
- data
- media_type
- type
title: Plain text
type: object
RateLimitError:
properties:
message:
default: Rate limited
title: Message
type: string
type:
const: rate_limit_error
default: rate_limit_error
enum:
- rate_limit_error
title: Type
type: string
required:
- message
- type
title: RateLimitError
type: object
RequestCharLocationCitation:
additionalProperties: false
properties:
cited_text:
title: Cited Text
type: string
document_index:
minimum: 0
title: Document Index
type: integer
document_title:
anyOf:
- maxLength: 255
minLength: 1
type: string
- type: "null"
title: Document Title
end_char_index:
title: End Char Index
type: integer
start_char_index:
minimum: 0
title: Start Char Index
type: integer
type:
const: char_location
enum:
- char_location
title: Type
type: string
required:
- cited_text
- document_index
- document_title
- end_char_index
- start_char_index
- type
title: Character location
type: object
RequestCitationsConfig:
additionalProperties: false
properties:
enabled:
title: Enabled
type: boolean
title: RequestCitationsConfig
type: object
RequestCodeExecutionOutputBlock:
additionalProperties: false
properties:
file_id:
title: File Id
type: string
type:
const: code_execution_output
enum:
- code_execution_output
title: Type
type: string
required:
- file_id
- type
title: RequestCodeExecutionOutputBlock
type: object
RequestCodeExecutionResultBlock:
additionalProperties: false
properties:
content:
items:
$ref: "#/components/schemas/RequestCodeExecutionOutputBlock"
title: Content
type: array
return_code:
title: Return Code
type: integer
stderr:
title: Stderr
type: string
stdout:
title: Stdout
type: string
type:
const: code_execution_result
enum:
- code_execution_result
title: Type
type: string
required:
- content
- return_code
- stderr
- stdout
- type
title: Code execution result
type: object
RequestCodeExecutionToolResultBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
content:
anyOf:
- $ref: "#/components/schemas/RequestCodeExecutionToolResultError"
- $ref: "#/components/schemas/RequestCodeExecutionResultBlock"
title: Content
tool_use_id:
pattern: ^srvtoolu_[a-zA-Z0-9_]+$
title: Tool Use Id
type: string
type:
const: code_execution_tool_result
enum:
- code_execution_tool_result
title: Type
type: string
required:
- content
- tool_use_id
- type
title: Code execution tool result
type: object
RequestCodeExecutionToolResultError:
additionalProperties: false
properties:
error_code:
$ref: "#/components/schemas/CodeExecutionToolResultErrorCode"
type:
const: code_execution_tool_result_error
enum:
- code_execution_tool_result_error
title: Type
type: string
required:
- error_code
- type
title: Code execution tool error
type: object
RequestContainerUploadBlock:
additionalProperties: false
description: >-
A content block that represents a file to be uploaded to the container
Files uploaded via this block will be available in the container's input
directory.
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
file_id:
title: File Id
type: string
type:
const: container_upload
enum:
- container_upload
title: Type
type: string
required:
- file_id
- type
title: Container upload
type: object
RequestContentBlockLocationCitation:
additionalProperties: false
properties:
cited_text:
title: Cited Text
type: string
document_index:
minimum: 0
title: Document Index
type: integer
document_title:
anyOf:
- maxLength: 255
minLength: 1
type: string
- type: "null"
title: Document Title
end_block_index:
title: End Block Index
type: integer
start_block_index:
minimum: 0
title: Start Block Index
type: integer
type:
const: content_block_location
enum:
- content_block_location
title: Type
type: string
required:
- cited_text
- document_index
- document_title
- end_block_index
- start_block_index
- type
title: Content block location
type: object
RequestDocumentBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
citations:
$ref: "#/components/schemas/RequestCitationsConfig"
context:
anyOf:
- minLength: 1
type: string
- type: "null"
title: Context
source:
discriminator:
mapping:
base64: "#/components/schemas/Base64PDFSource"
content: "#/components/schemas/ContentBlockSource"
file: "#/components/schemas/FileDocumentSource"
text: "#/components/schemas/PlainTextSource"
url: "#/components/schemas/URLPDFSource"
propertyName: type
oneOf:
- $ref: "#/components/schemas/Base64PDFSource"
- $ref: "#/components/schemas/PlainTextSource"
- $ref: "#/components/schemas/ContentBlockSource"
- $ref: "#/components/schemas/URLPDFSource"
- $ref: "#/components/schemas/FileDocumentSource"
title:
anyOf:
- maxLength: 500
minLength: 1
type: string
- type: "null"
title: Title
type:
const: document
enum:
- document
title: Type
type: string
required:
- source
- type
title: Document
type: object
RequestImageBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
source:
discriminator:
mapping:
base64: "#/components/schemas/Base64ImageSource"
file: "#/components/schemas/FileImageSource"
url: "#/components/schemas/URLImageSource"
propertyName: type
oneOf:
- $ref: "#/components/schemas/Base64ImageSource"
- $ref: "#/components/schemas/URLImageSource"
- $ref: "#/components/schemas/FileImageSource"
title: Source
type:
const: image
enum:
- image
title: Type
type: string
required:
- source
- type
title: Image
type: object
RequestMCPServerToolConfiguration:
additionalProperties: false
properties:
allowed_tools:
anyOf:
- items:
type: string
type: array
- type: "null"
title: Allowed Tools
enabled:
anyOf:
- type: boolean
- type: "null"
title: Enabled
title: RequestMCPServerToolConfiguration
type: object
RequestMCPServerURLDefinition:
additionalProperties: false
properties:
authorization_token:
anyOf:
- type: string
- type: "null"
title: Authorization Token
name:
title: Name
type: string
tool_configuration:
anyOf:
- $ref: "#/components/schemas/RequestMCPServerToolConfiguration"
- type: "null"
type:
const: url
enum:
- url
title: Type
type: string
url:
title: Url
type: string
required:
- name
- type
- url
title: RequestMCPServerURLDefinition
type: object
RequestMCPToolResultBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
content:
anyOf:
- type: string
- items:
$ref: "#/components/schemas/RequestTextBlock"
type: array
title: Content
is_error:
title: Is Error
type: boolean
tool_use_id:
pattern: ^[a-zA-Z0-9_-]+$
title: Tool Use Id
type: string
type:
const: mcp_tool_result
enum:
- mcp_tool_result
title: Type
type: string
required:
- tool_use_id
- type
title: MCP tool result
type: object
RequestMCPToolUseBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
id:
pattern: ^[a-zA-Z0-9_-]+$
title: Id
type: string
input:
title: Input
type: object
name:
title: Name
type: string
server_name:
description: The name of the MCP server
title: Server Name
type: string
type:
const: mcp_tool_use
enum:
- mcp_tool_use
title: Type
type: string
required:
- id
- input
- name
- server_name
- type
title: MCP tool use
type: object
RequestPageLocationCitation:
additionalProperties: false
properties:
cited_text:
title: Cited Text
type: string
document_index:
minimum: 0
title: Document Index
type: integer
document_title:
anyOf:
- maxLength: 255
minLength: 1
type: string
- type: "null"
title: Document Title
end_page_number:
title: End Page Number
type: integer
start_page_number:
minimum: 1
title: Start Page Number
type: integer
type:
const: page_location
enum:
- page_location
title: Type
type: string
required:
- cited_text
- document_index
- document_title
- end_page_number
- start_page_number
- type
title: Page location
type: object
RequestRedactedThinkingBlock:
additionalProperties: false
properties:
data:
title: Data
type: string
type:
const: redacted_thinking
enum:
- redacted_thinking
title: Type
type: string
required:
- data
- type
title: Redacted thinking
type: object
RequestSearchResultBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
citations:
$ref: "#/components/schemas/RequestCitationsConfig"
content:
items:
$ref: "#/components/schemas/RequestTextBlock"
title: Content
type: array
source:
title: Source
type: string
title:
title: Title
type: string
type:
const: search_result
enum:
- search_result
title: Type
type: string
required:
- content
- source
- title
- type
title: Search result
type: object
RequestSearchResultLocationCitation:
additionalProperties: false
properties:
cited_text:
title: Cited Text
type: string
end_block_index:
title: End Block Index
type: integer
search_result_index:
minimum: 0
title: Search Result Index
type: integer
source:
title: Source
type: string
start_block_index:
minimum: 0
title: Start Block Index
type: integer
title:
anyOf:
- type: string
- type: "null"
title: Title
type:
const: search_result_location
enum:
- search_result_location
title: Type
type: string
required:
- cited_text
- end_block_index
- search_result_index
- source
- start_block_index
- title
- type
title: RequestSearchResultLocationCitation
type: object
RequestServerToolUseBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
id:
pattern: ^srvtoolu_[a-zA-Z0-9_]+$
title: Id
type: string
input:
title: Input
type: object
name:
enum:
- web_search
- code_execution
title: Name
type: string
type:
const: server_tool_use
enum:
- server_tool_use
title: Type
type: string
required:
- id
- input
- name
- type
title: Server tool use
type: object
RequestTextBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
citations:
anyOf:
- items:
discriminator:
mapping:
char_location: "#/components/schemas/RequestCharLocationCitation"
content_block_location: "#/components/schemas/RequestContentBlockLocationCitation"
page_location: "#/components/schemas/RequestPageLocationCitation"
search_result_location: "#/components/schemas/RequestSearchResultLocationCitation"
web_search_result_location: >-
#/components/schemas/RequestWebSearchResultLocationCitation
propertyName: type
oneOf:
- $ref: "#/components/schemas/RequestCharLocationCitation"
- $ref: "#/components/schemas/RequestPageLocationCitation"
- $ref: "#/components/schemas/RequestContentBlockLocationCitation"
- $ref: >-
#/components/schemas/RequestWebSearchResultLocationCitation
- $ref: "#/components/schemas/RequestSearchResultLocationCitation"
type: array
- type: "null"
title: Citations
text:
minLength: 1
title: Text
type: string
type:
const: text
enum:
- text
title: Type
type: string
required:
- text
- type
title: Text
type: object
RequestThinkingBlock:
additionalProperties: false
properties:
signature:
title: Signature
type: string
thinking:
title: Thinking
type: string
type:
const: thinking
enum:
- thinking
title: Type
type: string
required:
- signature
- thinking
- type
title: Thinking
type: object
RequestToolResultBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
content:
anyOf:
- type: string
- items:
discriminator:
mapping:
image: "#/components/schemas/RequestImageBlock"
search_result: "#/components/schemas/RequestSearchResultBlock"
text: "#/components/schemas/RequestTextBlock"
propertyName: type
oneOf:
- $ref: "#/components/schemas/RequestTextBlock"
- $ref: "#/components/schemas/RequestImageBlock"
- $ref: "#/components/schemas/RequestSearchResultBlock"
type: array
title: Content
is_error:
title: Is Error
type: boolean
tool_use_id:
pattern: ^[a-zA-Z0-9_-]+$
title: Tool Use Id
type: string
type:
const: tool_result
enum:
- tool_result
title: Type
type: string
required:
- tool_use_id
- type
title: Tool result
type: object
RequestToolUseBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
id:
pattern: ^[a-zA-Z0-9_-]+$
title: Id
type: string
input:
title: Input
type: object
name:
maxLength: 200
minLength: 1
title: Name
type: string
type:
const: tool_use
enum:
- tool_use
title: Type
type: string
required:
- id
- input
- name
- type
title: Tool use
type: object
RequestWebSearchResultBlock:
additionalProperties: false
properties:
encrypted_content:
title: Encrypted Content
type: string
page_age:
anyOf:
- type: string
- type: "null"
title: Page Age
title:
title: Title
type: string
type:
const: web_search_result
enum:
- web_search_result
title: Type
type: string
url:
title: Url
type: string
required:
- encrypted_content
- title
- type
- url
title: RequestWebSearchResultBlock
type: object
RequestWebSearchResultLocationCitation:
additionalProperties: false
properties:
cited_text:
title: Cited Text
type: string
encrypted_index:
title: Encrypted Index
type: string
title:
anyOf:
- maxLength: 512
minLength: 1
type: string
- type: "null"
title: Title
type:
const: web_search_result_location
enum:
- web_search_result_location
title: Type
type: string
url:
maxLength: 2048
minLength: 1
title: Url
type: string
required:
- cited_text
- encrypted_index
- title
- type
- url
title: RequestWebSearchResultLocationCitation
type: object
RequestWebSearchToolResultBlock:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
content:
anyOf:
- items:
$ref: "#/components/schemas/RequestWebSearchResultBlock"
type: array
- $ref: "#/components/schemas/RequestWebSearchToolResultError"
title: Content
tool_use_id:
pattern: ^srvtoolu_[a-zA-Z0-9_]+$
title: Tool Use Id
type: string
type:
const: web_search_tool_result
enum:
- web_search_tool_result
title: Type
type: string
required:
- content
- tool_use_id
- type
title: Web search tool result
type: object
RequestWebSearchToolResultError:
additionalProperties: false
properties:
error_code:
$ref: "#/components/schemas/WebSearchToolResultErrorCode"
type:
const: web_search_tool_result_error
enum:
- web_search_tool_result_error
title: Type
type: string
required:
- error_code
- type
title: RequestWebSearchToolResultError
type: object
ResponseCharLocationCitation:
properties:
cited_text:
title: Cited Text
type: string
document_index:
minimum: 0
title: Document Index
type: integer
document_title:
anyOf:
- type: string
- type: "null"
title: Document Title
end_char_index:
title: End Char Index
type: integer
file_id:
anyOf:
- type: string
- type: "null"
default: null
title: File Id
start_char_index:
minimum: 0
title: Start Char Index
type: integer
type:
const: char_location
default: char_location
enum:
- char_location
title: Type
type: string
required:
- cited_text
- document_index
- document_title
- end_char_index
- file_id
- start_char_index
- type
title: Character location
type: object
ResponseCodeExecutionOutputBlock:
properties:
file_id:
title: File Id
type: string
type:
const: code_execution_output
default: code_execution_output
enum:
- code_execution_output
title: Type
type: string
required:
- file_id
- type
title: ResponseCodeExecutionOutputBlock
type: object
ResponseCodeExecutionResultBlock:
properties:
content:
items:
$ref: "#/components/schemas/ResponseCodeExecutionOutputBlock"
title: Content
type: array
return_code:
title: Return Code
type: integer
stderr:
title: Stderr
type: string
stdout:
title: Stdout
type: string
type:
const: code_execution_result
default: code_execution_result
enum:
- code_execution_result
title: Type
type: string
required:
- content
- return_code
- stderr
- stdout
- type
title: Code execution result
type: object
ResponseCodeExecutionToolResultBlock:
properties:
content:
anyOf:
- $ref: "#/components/schemas/ResponseCodeExecutionToolResultError"
- $ref: "#/components/schemas/ResponseCodeExecutionResultBlock"
title: Content
tool_use_id:
pattern: ^srvtoolu_[a-zA-Z0-9_]+$
title: Tool Use Id
type: string
type:
const: code_execution_tool_result
default: code_execution_tool_result
enum:
- code_execution_tool_result
title: Type
type: string
required:
- content
- tool_use_id
- type
title: Code execution tool result
type: object
ResponseCodeExecutionToolResultError:
properties:
error_code:
$ref: "#/components/schemas/CodeExecutionToolResultErrorCode"
type:
const: code_execution_tool_result_error
default: code_execution_tool_result_error
enum:
- code_execution_tool_result_error
title: Type
type: string
required:
- error_code
- type
title: Code execution tool error
type: object
ResponseContainerUploadBlock:
description: Response model for a file uploaded to the container.
properties:
file_id:
title: File Id
type: string
type:
const: container_upload
default: container_upload
enum:
- container_upload
title: Type
type: string
required:
- file_id
- type
title: Container upload
type: object
ResponseContentBlockLocationCitation:
properties:
cited_text:
title: Cited Text
type: string
document_index:
minimum: 0
title: Document Index
type: integer
document_title:
anyOf:
- type: string
- type: "null"
title: Document Title
end_block_index:
title: End Block Index
type: integer
file_id:
anyOf:
- type: string
- type: "null"
default: null
title: File Id
start_block_index:
minimum: 0
title: Start Block Index
type: integer
type:
const: content_block_location
default: content_block_location
enum:
- content_block_location
title: Type
type: string
required:
- cited_text
- document_index
- document_title
- end_block_index
- file_id
- start_block_index
- type
title: Content block location
type: object
ResponseMCPToolResultBlock:
properties:
content:
anyOf:
- type: string
- items:
$ref: "#/components/schemas/ResponseTextBlock"
type: array
title: Content
is_error:
default: false
title: Is Error
type: boolean
tool_use_id:
pattern: ^[a-zA-Z0-9_-]+$
title: Tool Use Id
type: string
type:
const: mcp_tool_result
default: mcp_tool_result
enum:
- mcp_tool_result
title: Type
type: string
required:
- content
- is_error
- tool_use_id
- type
title: MCP tool result
type: object
ResponseMCPToolUseBlock:
properties:
id:
pattern: ^[a-zA-Z0-9_-]+$
title: Id
type: string
input:
title: Input
type: object
name:
description: The name of the MCP tool
title: Name
type: string
server_name:
description: The name of the MCP server
title: Server Name
type: string
type:
const: mcp_tool_use
default: mcp_tool_use
enum:
- mcp_tool_use
title: Type
type: string
required:
- id
- input
- name
- server_name
- type
title: MCP tool use
type: object
ResponsePageLocationCitation:
properties:
cited_text:
title: Cited Text
type: string
document_index:
minimum: 0
title: Document Index
type: integer
document_title:
anyOf:
- type: string
- type: "null"
title: Document Title
end_page_number:
title: End Page Number
type: integer
file_id:
anyOf:
- type: string
- type: "null"
default: null
title: File Id
start_page_number:
minimum: 1
title: Start Page Number
type: integer
type:
const: page_location
default: page_location
enum:
- page_location
title: Type
type: string
required:
- cited_text
- document_index
- document_title
- end_page_number
- file_id
- start_page_number
- type
title: Page location
type: object
ResponseRedactedThinkingBlock:
properties:
data:
title: Data
type: string
type:
const: redacted_thinking
default: redacted_thinking
enum:
- redacted_thinking
title: Type
type: string
required:
- data
- type
title: Redacted thinking
type: object
ResponseSearchResultLocationCitation:
properties:
cited_text:
title: Cited Text
type: string
end_block_index:
title: End Block Index
type: integer
search_result_index:
minimum: 0
title: Search Result Index
type: integer
source:
title: Source
type: string
start_block_index:
minimum: 0
title: Start Block Index
type: integer
title:
anyOf:
- type: string
- type: "null"
title: Title
type:
const: search_result_location
default: search_result_location
enum:
- search_result_location
title: Type
type: string
required:
- cited_text
- end_block_index
- search_result_index
- source
- start_block_index
- title
- type
title: ResponseSearchResultLocationCitation
type: object
ResponseServerToolUseBlock:
properties:
id:
pattern: ^srvtoolu_[a-zA-Z0-9_]+$
title: Id
type: string
input:
title: Input
type: object
name:
enum:
- web_search
- code_execution
title: Name
type: string
type:
const: server_tool_use
default: server_tool_use
enum:
- server_tool_use
title: Type
type: string
required:
- id
- input
- name
- type
title: Server tool use
type: object
ResponseTextBlock:
properties:
citations:
anyOf:
- items:
discriminator:
mapping:
char_location: "#/components/schemas/ResponseCharLocationCitation"
content_block_location: "#/components/schemas/ResponseContentBlockLocationCitation"
page_location: "#/components/schemas/ResponsePageLocationCitation"
search_result_location: "#/components/schemas/ResponseSearchResultLocationCitation"
web_search_result_location: >-
#/components/schemas/ResponseWebSearchResultLocationCitation
propertyName: type
oneOf:
- $ref: "#/components/schemas/ResponseCharLocationCitation"
- $ref: "#/components/schemas/ResponsePageLocationCitation"
- $ref: "#/components/schemas/ResponseContentBlockLocationCitation"
- $ref: >-
#/components/schemas/ResponseWebSearchResultLocationCitation
- $ref: "#/components/schemas/ResponseSearchResultLocationCitation"
type: array
- type: "null"
default: null
description: >-
Citations supporting the text block.
The type of citation returned will depend on the type of document
being cited. Citing a PDF results in `page_location`, plain text
results in `char_location`, and content document results in
`content_block_location`.
title: Citations
text:
maxLength: 5000000
minLength: 0
title: Text
type: string
type:
const: text
default: text
enum:
- text
title: Type
type: string
required:
- citations
- text
- type
title: Text
type: object
ResponseThinkingBlock:
properties:
signature:
title: Signature
type: string
thinking:
title: Thinking
type: string
type:
const: thinking
default: thinking
enum:
- thinking
title: Type
type: string
required:
- signature
- thinking
- type
title: Thinking
type: object
ResponseToolUseBlock:
properties:
id:
pattern: ^[a-zA-Z0-9_-]+$
title: Id
type: string
input:
title: Input
type: object
name:
minLength: 1
title: Name
type: string
type:
const: tool_use
default: tool_use
enum:
- tool_use
title: Type
type: string
required:
- id
- input
- name
- type
title: Tool use
type: object
ResponseWebSearchResultBlock:
properties:
encrypted_content:
title: Encrypted Content
type: string
page_age:
anyOf:
- type: string
- type: "null"
default: null
title: Page Age
title:
title: Title
type: string
type:
const: web_search_result
default: web_search_result
enum:
- web_search_result
title: Type
type: string
url:
title: Url
type: string
required:
- encrypted_content
- page_age
- title
- type
- url
title: ResponseWebSearchResultBlock
type: object
ResponseWebSearchResultLocationCitation:
properties:
cited_text:
title: Cited Text
type: string
encrypted_index:
title: Encrypted Index
type: string
title:
anyOf:
- maxLength: 512
type: string
- type: "null"
title: Title
type:
const: web_search_result_location
default: web_search_result_location
enum:
- web_search_result_location
title: Type
type: string
url:
title: Url
type: string
required:
- cited_text
- encrypted_index
- title
- type
- url
title: ResponseWebSearchResultLocationCitation
type: object
ResponseWebSearchToolResultBlock:
properties:
content:
anyOf:
- $ref: "#/components/schemas/ResponseWebSearchToolResultError"
- items:
$ref: "#/components/schemas/ResponseWebSearchResultBlock"
type: array
title: Content
tool_use_id:
pattern: ^srvtoolu_[a-zA-Z0-9_]+$
title: Tool Use Id
type: string
type:
const: web_search_tool_result
default: web_search_tool_result
enum:
- web_search_tool_result
title: Type
type: string
required:
- content
- tool_use_id
- type
title: Web search tool result
type: object
ResponseWebSearchToolResultError:
properties:
error_code:
$ref: "#/components/schemas/WebSearchToolResultErrorCode"
type:
const: web_search_tool_result_error
default: web_search_tool_result_error
enum:
- web_search_tool_result_error
title: Type
type: string
required:
- error_code
- type
title: ResponseWebSearchToolResultError
type: object
ServerToolUsage:
properties:
web_search_requests:
default: 0
description: The number of web search tool requests.
examples:
- 0
minimum: 0
title: Web Search Requests
type: integer
required:
- web_search_requests
title: ServerToolUsage
type: object
TextEditor_20241022:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
name:
const: str_replace_editor
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- str_replace_editor
title: Name
type: string
type:
const: text_editor_20241022
enum:
- text_editor_20241022
title: Type
type: string
required:
- name
- type
title: Text editor tool (2024-10-22)
type: object
TextEditor_20250124:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
name:
const: str_replace_editor
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- str_replace_editor
title: Name
type: string
type:
const: text_editor_20250124
enum:
- text_editor_20250124
title: Type
type: string
required:
- name
- type
title: Text editor tool (2025-01-24)
type: object
TextEditor_20250429:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
name:
const: str_replace_based_edit_tool
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- str_replace_based_edit_tool
title: Name
type: string
type:
const: text_editor_20250429
enum:
- text_editor_20250429
title: Type
type: string
required:
- name
- type
title: Text editor tool (2025-04-29)
type: object
TextEditor_20250728:
additionalProperties: false
properties:
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
max_characters:
anyOf:
- minimum: 1
type: integer
- type: "null"
description: >-
Maximum number of characters to display when viewing a file. If not
specified, defaults to displaying the full file.
title: Max Characters
name:
const: str_replace_based_edit_tool
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- str_replace_based_edit_tool
title: Name
type: string
type:
const: text_editor_20250728
enum:
- text_editor_20250728
title: Type
type: string
required:
- name
- type
title: TextEditor_20250728
type: object
ThinkingConfigDisabled:
additionalProperties: false
properties:
type:
const: disabled
enum:
- disabled
title: Type
type: string
required:
- type
title: Disabled
type: object
ThinkingConfigEnabled:
additionalProperties: false
properties:
budget_tokens:
description: >-
Determines how many tokens Claude can use for its internal reasoning
process. Larger budgets can enable more thorough analysis for
complex problems, improving response quality.
Must be ≥1024 and less than `max_tokens`.
See [extended
thinking](https://docs.anthropic.com/en/docs/build-with-claude/extended-thinking)
for details.
minimum: 1024
title: Budget Tokens
type: integer
type:
const: enabled
enum:
- enabled
title: Type
type: string
required:
- budget_tokens
- type
title: Enabled
type: object
Tool:
additionalProperties: false
properties:
type:
anyOf:
- type: "null"
- const: custom
enum:
- custom
type: string
title: Type
description:
description: >-
Description of what this tool does.
Tool descriptions should be as detailed as possible. The more
information that the model has about what the tool is and how to use
it, the better it will perform. You can use natural language
descriptions to reinforce important aspects of the tool input JSON
schema.
examples:
- Get the current weather in a given location
title: Description
type: string
name:
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
maxLength: 128
minLength: 1
pattern: ^[a-zA-Z0-9_-]{1,128}$
title: Name
type: string
input_schema:
$ref: "#/components/schemas/InputSchema"
description: >-
[JSON schema](https://json-schema.org/draft/2020-12) for this tool's
input.
This defines the shape of the `input` that your tool accepts and
that the model will produce.
examples:
- properties:
location:
description: The city and state, e.g. San Francisco, CA
type: string
unit:
description: Unit for the output - one of (celsius, fahrenheit)
type: string
required:
- location
type: object
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
required:
- name
- input_schema
title: Custom tool
type: object
ToolChoiceAny:
additionalProperties: false
description: The model will use any available tools.
properties:
disable_parallel_tool_use:
description: >-
Whether to disable parallel tool use.
Defaults to `false`. If set to `true`, the model will output exactly
one tool use.
title: Disable Parallel Tool Use
type: boolean
type:
const: any
enum:
- any
title: Type
type: string
required:
- type
title: Any
type: object
ToolChoiceAuto:
additionalProperties: false
description: The model will automatically decide whether to use tools.
properties:
disable_parallel_tool_use:
description: >-
Whether to disable parallel tool use.
Defaults to `false`. If set to `true`, the model will output at most
one tool use.
title: Disable Parallel Tool Use
type: boolean
type:
const: auto
enum:
- auto
title: Type
type: string
required:
- type
title: Auto
type: object
ToolChoiceNone:
additionalProperties: false
description: The model will not be allowed to use tools.
properties:
type:
const: none
enum:
- none
title: Type
type: string
required:
- type
title: None
type: object
ToolChoiceTool:
additionalProperties: false
description: The model will use the specified tool with `tool_choice.name`.
properties:
disable_parallel_tool_use:
description: >-
Whether to disable parallel tool use.
Defaults to `false`. If set to `true`, the model will output exactly
one tool use.
title: Disable Parallel Tool Use
type: boolean
name:
description: The name of the tool to use.
title: Name
type: string
type:
const: tool
enum:
- tool
title: Type
type: string
required:
- name
- type
title: Tool
type: object
URLImageSource:
additionalProperties: false
properties:
type:
const: url
enum:
- url
title: Type
type: string
url:
title: Url
type: string
required:
- type
- url
title: URLImageSource
type: object
URLPDFSource:
additionalProperties: false
properties:
type:
const: url
enum:
- url
title: Type
type: string
url:
title: Url
type: string
required:
- type
- url
title: PDF (URL)
type: object
Usage:
properties:
cache_creation:
anyOf:
- $ref: "#/components/schemas/CacheCreation"
- type: "null"
default: null
description: Breakdown of cached tokens by TTL
cache_creation_input_tokens:
anyOf:
- minimum: 0
type: integer
- type: "null"
default: null
description: The number of input tokens used to create the cache entry.
examples:
- 2051
title: Cache Creation Input Tokens
cache_read_input_tokens:
anyOf:
- minimum: 0
type: integer
- type: "null"
default: null
description: The number of input tokens read from the cache.
examples:
- 2051
title: Cache Read Input Tokens
input_tokens:
description: The number of input tokens which were used.
examples:
- 2095
minimum: 0
title: Input Tokens
type: integer
output_tokens:
description: The number of output tokens which were used.
examples:
- 503
minimum: 0
title: Output Tokens
type: integer
server_tool_use:
anyOf:
- $ref: "#/components/schemas/ServerToolUsage"
- type: "null"
default: null
description: The number of server tool requests.
service_tier:
anyOf:
- enum:
- standard
- priority
- batch
type: string
- type: "null"
default: null
description: If the request used the priority, standard, or batch tier.
title: Service Tier
required:
- cache_creation
- cache_creation_input_tokens
- cache_read_input_tokens
- input_tokens
- output_tokens
- server_tool_use
- service_tier
title: Usage
type: object
UserLocation:
additionalProperties: false
properties:
city:
anyOf:
- maxLength: 255
minLength: 1
type: string
- type: "null"
description: The city of the user.
examples:
- New York
- Tokyo
- Los Angeles
title: City
country:
anyOf:
- maxLength: 2
minLength: 2
type: string
- type: "null"
description: >-
The two letter [ISO country
code](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2) of the user.
examples:
- US
- JP
- GB
title: Country
region:
anyOf:
- maxLength: 255
minLength: 1
type: string
- type: "null"
description: The region of the user.
examples:
- California
- Ontario
- Wales
title: Region
timezone:
anyOf:
- maxLength: 255
minLength: 1
type: string
- type: "null"
description: The [IANA timezone](https://nodatime.org/TimeZones) of the user.
examples:
- America/New_York
- Asia/Tokyo
- Europe/London
title: Timezone
type:
const: approximate
enum:
- approximate
title: Type
type: string
required:
- type
title: UserLocation
type: object
WebSearchToolResultErrorCode:
enum:
- invalid_tool_input
- unavailable
- max_uses_exceeded
- too_many_requests
- query_too_long
title: WebSearchToolResultErrorCode
type: string
WebSearchTool_20250305:
additionalProperties: false
properties:
allowed_domains:
anyOf:
- items:
type: string
type: array
- type: "null"
description: >-
If provided, only these domains will be included in results. Cannot
be used alongside `blocked_domains`.
title: Allowed Domains
blocked_domains:
anyOf:
- items:
type: string
type: array
- type: "null"
description: >-
If provided, these domains will never appear in results. Cannot be
used alongside `allowed_domains`.
title: Blocked Domains
cache_control:
anyOf:
- discriminator:
mapping:
ephemeral: "#/components/schemas/CacheControlEphemeral"
propertyName: type
oneOf:
- $ref: "#/components/schemas/CacheControlEphemeral"
- type: "null"
description: Create a cache control breakpoint at this content block.
title: Cache Control
max_uses:
anyOf:
- exclusiveMinimum: 0
type: integer
- type: "null"
description: Maximum number of times the tool can be used in the API request.
title: Max Uses
name:
const: web_search
description: >-
Name of the tool.
This is how the tool will be called by the model and in `tool_use`
blocks.
enum:
- web_search
title: Name
type: string
type:
const: web_search_20250305
enum:
- web_search_20250305
title: Type
type: string
user_location:
anyOf:
- $ref: "#/components/schemas/UserLocation"
- type: "null"
description: >-
Parameters for the user's location. Used to provide more relevant
search results.
required:
- name
- type
title: Web search tool (2025-03-05)
type: object