Langflow OpenAI Responses API API

openapi: 3.1.0
info:
  title: Langflow Base OpenAI Responses API API
  version: 1.9.0
tags:
- name: OpenAI Responses API
paths:
  /api/v1/responses:
    post:
      description: 'Create a response using OpenAI Responses API format.<br><br>This endpoint accepts a flow_id in the model parameter and processes<br>the input through the specified Langflow flow.<br><br>Args:<br>    request: OpenAI Responses API request with model (flow_id) and input<br>    background_tasks: FastAPI background task manager<br>    api_key_user: Authenticated user from API key<br>    http_request: The incoming HTTP request<br>    telemetry_service: Telemetry service for logging<br><br>Returns:<br>    OpenAI-compatible response or streaming response<br><br>Raises:<br>    HTTPException: For validation errors or flow execution issues'
      operationId: create_response_api_v1_responses_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OpenAIResponsesRequest'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema: {}
          description: Successful Response
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
          description: Validation Error
      security:
      - API key query: []
      - API key header: []
      summary: Create Response
      tags:
      - OpenAI Responses API
components:
  schemas:
    OpenAIResponsesRequest:
      description: OpenAI-compatible responses request with flow_id as model parameter.
      properties:
        background:
          default: false
          description: Whether to process in background
          title: Background
          type: boolean
        include:
          anyOf:
          - items:
              type: string
            type: array
          - type: 'null'
          description: Additional response data to include, e.g., ['tool_call.results']
          title: Include
        input:
          description: The input text to process
          title: Input
          type: string
        model:
          description: The flow ID to execute (used instead of OpenAI model)
          title: Model
          type: string
        previous_response_id:
          anyOf:
          - type: string
          - type: 'null'
          description: ID of previous response to continue conversation
          title: Previous Response Id
        stream:
          default: false
          description: Whether to stream the response
          title: Stream
          type: boolean
        tools:
          anyOf:
          - items: {}
            type: array
          - type: 'null'
          description: Tools are not supported yet
          title: Tools
      required:
      - model
      - input
      title: OpenAIResponsesRequest
      type: object
    ValidationError:
      properties:
        ctx:
          title: Context
          type: object
        input:
          title: Input
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          title: Location
          type: array
        msg:
          title: Message
          type: string
        type:
          title: Error Type
          type: string
      required:
      - loc
      - msg
      - type
      title: ValidationError
      type: object
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          title: Detail
          type: array
      title: HTTPValidationError
      type: object
  securitySchemes:
    API key header:
      in: header
      name: x-api-key
      type: apiKey
    API key query:
      in: query
      name: x-api-key
      type: apiKey
    OAuth2PasswordBearerCookie:
      flows:
        password:
          scopes: {}
          tokenUrl: api/v1/login
      type: oauth2