Langdock Responses API
The Responses API from Langdock — 1 operation(s) for responses.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Langdock Responses API
version: 3.0.0
servers:
- url: https://api.langdock.com
description: Production
security:
- bearerAuth: []
tags:
- name: Responses
paths:
/openai/{region}/v1/responses:
post:
tags:
- Responses
summary: Creates a stateless model response
description: Creates a stateless OpenAI-compatible response. Supports text generation, streaming, and function tools. Do not send store=true, previous_response_id, background=true, or hosted tools.
operationId: createResponse
parameters:
- name: region
in: path
required: true
description: The region of the API to use.
schema:
type: string
enum:
- eu
- us
- global
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- model
- input
properties:
model:
type: string
description: The model ID. Use the models endpoint to list models available in your workspace.
input:
description: The input text or full conversation state to process.
oneOf:
- type: string
- type: array
items: {}
- type: object
additionalProperties: true
instructions:
type:
- string
- 'null'
description: Instructions added to the model context.
max_output_tokens:
type:
- integer
- 'null'
minimum: 1
description: The maximum number of output tokens.
temperature:
type:
- number
- 'null'
description: Controls response randomness.
top_p:
type:
- number
- 'null'
description: Controls nucleus sampling.
stream:
type:
- boolean
- 'null'
default: false
description: Whether to return native Responses API server sent events.
tools:
type: array
description: Function tool definitions. Hosted tools are not supported.
items:
type: object
required:
- type
- name
properties:
type:
type: string
enum:
- function
name:
type: string
minLength: 1
description:
type:
- string
- 'null'
parameters:
type:
- object
- 'null'
additionalProperties: true
strict:
type:
- boolean
- 'null'
tool_choice:
description: Controls whether the model can call a function.
oneOf:
- type: string
enum:
- none
- auto
- required
- type: object
required:
- type
- name
properties:
type:
type: string
enum:
- function
name:
type: string
minLength: 1
parallel_tool_calls:
type:
- boolean
- 'null'
description: Whether the model can return multiple function calls.
reasoning:
type: object
description: OpenAI Responses reasoning configuration.
additionalProperties: true
text:
type: object
description: OpenAI Responses text output configuration.
additionalProperties: true
metadata:
type:
- object
- 'null'
description: String metadata attached to the request.
additionalProperties:
type: string
store:
type:
- boolean
- 'null'
enum:
- false
description: Responses are not persisted. Omit this field or set it to false.
background:
type:
- boolean
- 'null'
enum:
- false
description: Background responses are not supported.
include:
type:
- array
- 'null'
items:
type: string
description: Additional response fields to include.
truncation:
type:
- string
- 'null'
enum:
- auto
- disabled
service_tier:
type:
- string
- 'null'
description: The OpenAI service tier forwarded to the model provider.
example:
model: gpt-5-mini
input: Write a short poem about cats.
store: false
responses:
'200':
description: Successful response or event stream.
content:
application/json:
schema:
$ref: '#/components/schemas/CreateResponseResponse'
example:
id: resp_09e99d1f7f163d10016a678387353481
object: response
created_at: 1785168775
status: completed
model: gpt-5-mini-2025-08-07
output:
- id: rs_09e99d1f7f163d10016a678387f47881
type: reasoning
content: []
summary: []
- id: msg_09e99d1f7f163d10016a67838935a881
type: message
status: completed
role: assistant
content:
- type: output_text
annotations: []
logprobs: []
text: 'Whiskers sketch moonlight on the sill,
paws treading silence, soft and still.
Eyes like lanterns, sly and bright,
turning midnight into light.
A velvet sigh, a sudden purr—
the world made small, the heart made her.'
usage:
input_tokens: 13
input_tokens_details:
cached_tokens: 0
output_tokens: 154
output_tokens_details:
reasoning_tokens: 64
total_tokens: 167
text/event-stream:
schema:
type: string
description: Native OpenAI Responses API server sent events.
'400':
description: Invalid fields, unsupported features, or an unavailable model.
'401':
description: Missing, invalid, or expired API key.
'403':
description: API key without the Completion API scope.
'413':
description: Request body exceeds 20 MB.
'429':
description: Usage or rate limit exceeded.
'500':
description: Internal server or upstream provider error.
default:
description: Error returned by the upstream model provider.
content:
application/json:
schema:
type: object
required:
- error
properties:
error:
type: object
required:
- message
- type
properties:
message:
type: string
type:
type: string
code:
type:
- string
- 'null'
param:
type:
- string
- 'null'
security:
- bearerAuth: []
components:
schemas:
ResponseOutputMessage:
type: object
description: A message generated by the model.
required:
- id
- type
- status
- role
- content
properties:
id:
type: string
example: msg_09e99d1f7f163d10016a67838935a881
type:
type: string
enum:
- message
status:
type: string
enum:
- in_progress
- completed
- incomplete
role:
type: string
enum:
- assistant
content:
type: array
items:
oneOf:
- $ref: '#/components/schemas/ResponseOutputText'
- $ref: '#/components/schemas/ResponseOutputRefusal'
additionalProperties: true
ResponseOutputText:
type: object
description: Text generated by the model.
required:
- type
- text
- annotations
properties:
type:
type: string
enum:
- output_text
text:
type: string
example: 'Whiskers sketch moonlight on the sill,
paws treading silence, soft and still.'
annotations:
type: array
items:
type: object
additionalProperties: true
logprobs:
type: array
items:
type: object
additionalProperties: true
additionalProperties: true
ResponseFunctionToolCall:
type: object
description: A function call requested by the model.
required:
- id
- type
- call_id
- name
- arguments
properties:
id:
type: string
example: fc_123
type:
type: string
enum:
- function_call
status:
type: string
enum:
- in_progress
- completed
- incomplete
call_id:
type: string
example: call_123
name:
type: string
example: lookup_weather
arguments:
type: string
description: JSON-encoded arguments for the function.
example: '{"city":"Berlin"}'
additionalProperties: true
ResponseReasoningItem:
type: object
description: Reasoning information generated by a reasoning model.
required:
- id
- type
- summary
properties:
id:
type: string
example: rs_123
type:
type: string
enum:
- reasoning
summary:
type: array
items:
type: object
additionalProperties: true
content:
type: array
items:
type: object
additionalProperties: true
encrypted_content:
type:
- string
- 'null'
description: Encrypted reasoning content when requested.
status:
type:
- string
- 'null'
enum:
- in_progress
- completed
- incomplete
additionalProperties: true
ResponseUsage:
type: object
description: Token usage for the response.
required:
- input_tokens
- output_tokens
- total_tokens
properties:
input_tokens:
type: integer
example: 13
input_tokens_details:
type: object
properties:
cached_tokens:
type: integer
example: 0
additionalProperties: true
output_tokens:
type: integer
example: 154
output_tokens_details:
type: object
properties:
reasoning_tokens:
type: integer
example: 64
additionalProperties: true
total_tokens:
type: integer
example: 167
additionalProperties: true
ResponseOutputRefusal:
type: object
description: A refusal returned by the model.
required:
- type
- refusal
properties:
type:
type: string
enum:
- refusal
refusal:
type: string
additionalProperties: true
CreateResponseResponse:
type: object
description: A response returned by the OpenAI-compatible Responses endpoint.
required:
- id
- object
- created_at
- status
- model
- output
properties:
id:
type: string
description: Unique identifier for the response.
example: resp_09e99d1f7f163d10016a678387353481
object:
type: string
enum:
- response
description: The object type, which is always `response`.
created_at:
type: integer
description: Unix timestamp in seconds when the response was created.
example: 1785168775
completed_at:
type:
- integer
- 'null'
description: Unix timestamp in seconds when the response completed.
example: 1785168778
background:
type: boolean
enum:
- false
description: Langdock does not support background responses.
status:
type: string
enum:
- completed
- failed
- in_progress
- cancelled
- queued
- incomplete
description: Current response status.
example: completed
model:
type: string
description: Model used to generate the response.
example: gpt-5-mini-2025-08-07
output:
type: array
description: Output items generated by the model.
items:
oneOf:
- $ref: '#/components/schemas/ResponseReasoningItem'
- $ref: '#/components/schemas/ResponseOutputMessage'
- $ref: '#/components/schemas/ResponseFunctionToolCall'
output_text:
type: string
description: Aggregated text from all `output_text` items.
error:
type:
- object
- 'null'
description: Error information when the response failed.
properties:
code:
type:
- string
- 'null'
message:
type: string
incomplete_details:
type:
- object
- 'null'
description: Details explaining why the response is incomplete.
properties:
reason:
type: string
enum:
- max_output_tokens
- content_filter
instructions:
type:
- string
- 'null'
description: Instructions used for the response.
max_output_tokens:
type:
- integer
- 'null'
description: Maximum number of output tokens configured for the response.
parallel_tool_calls:
type: boolean
description: Whether the model can return multiple function calls.
reasoning:
type:
- object
- 'null'
description: Reasoning configuration used for the response.
additionalProperties: true
store:
type: boolean
enum:
- false
description: Langdock Responses are never persisted.
temperature:
type:
- number
- 'null'
description: Sampling temperature used for the response.
text:
type:
- object
- 'null'
description: Text output configuration used for the response.
additionalProperties: true
service_tier:
type:
- string
- 'null'
description: Service tier used to process the response.
tool_choice:
description: Tool choice used for the response.
oneOf:
- type: string
- type: object
additionalProperties: true
tools:
type: array
description: Function tools available to the model.
items:
type: object
additionalProperties: true
top_p:
type:
- number
- 'null'
description: Nucleus sampling value used for the response.
truncation:
type: string
enum:
- auto
- disabled
description: Truncation strategy used for the response.
usage:
$ref: '#/components/schemas/ResponseUsage'
metadata:
type:
- object
- 'null'
description: Metadata attached to the request.
additionalProperties:
type: string
additionalProperties: true
securitySchemes:
bearerAuth:
type: http
scheme: bearer
bearerFormat: API Key
description: API key as Bearer token. Format "Bearer YOUR_API_KEY"
x-provenance:
method: harvested
publisher: Langdock
source: https://docs.langdock.com/openapi.yaml
note: split by refine-openapis from the provider's own published document, verified by fetch (openapi/_original/*.fetch.json);
stamped by stamp-openapi-provenance.py (roadmap#793)