WanAPIs

WanAPIs Responses API

WanAPIs Responses API for structured, multi-step model workflows.

Documentation GitHub OpenAPI

Operations 1

POST /responses Create a Response (WanAPIs Responses API) #

Specifications

⚙

OpenAPI

https://raw.githubusercontent.com/api-evangelist/wanapis/refs/heads/main/openapi/wanapis-responses-api-openapi.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/wanapis-responses-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: WanAPIs Unified AI Responses API
  version: '2026-05-27'
  summary: OpenAI-compatible AI gateway aggregating GPT, Claude, Gemini, DeepSeek and other LLM, image, video, and audio model providers behind a single key.
  description: WanAPIs (https://wanapis.com) is a developer-focused AI API gateway.
  termsOfService: https://wanapis.com/
  contact:
    name: WanAPIs Support
    email: support@wanapis.com
    url: https://wanapis.com/
  license:
    name: Proprietary
    url: https://wanapis.com/
servers:
- url: https://api.wanapis.com/v1
  description: WanAPIs production OpenAI-compatible base URL.
security:
- bearerAuth: []
tags:
- name: Responses
  description: WanAPIs Responses API for structured, multi-step model workflows.
paths:
  /responses:
    post:
      tags:
      - Responses
      operationId: createResponse
      summary: Create a Response (WanAPIs Responses API)
      description: 'WanAPIs-native Responses endpoint for structured, multi-step workflows.

        Compatible with the OpenAI Responses API. Accepts an `input` string or

        message array plus optional tool configuration.'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ResponseRequest'
            examples:
              gpt:
                summary: Diagnose a log
                value:
                  model: gpt-5.5
                  input: 分析这段日志并给出排障步骤
      responses:
        '200':
          description: Response object.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResponseObject'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
        '500':
          $ref: '#/components/responses/UpstreamFailure'
components:
  schemas:
    ResponseObject:
      type: object
      properties:
        id:
          type: string
        object:
          type: string
          const: response
        created:
          type: integer
        model:
          type: string
        output:
          type: array
          items:
            type: object
        usage:
          $ref: '#/components/schemas/Usage'
    Usage:
      type: object
      properties:
        prompt_tokens:
          type: integer
        completion_tokens:
          type: integer
        total_tokens:
          type: integer
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            message:
              type: string
            type:
              type: string
            code:
              type: string
            param:
              type: string
              nullable: true
    ResponseRequest:
      type: object
      required:
      - model
      - input
      properties:
        model:
          type: string
        input:
          oneOf:
          - type: string
          - type: array
            items:
              type: object
        instructions:
          type: string
        tools:
          type: array
          items:
            type: object
        stream:
          type: boolean
          default: false
        metadata:
          type: object
  responses:
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimited:
      description: Rate limit or quota exceeded.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    UpstreamFailure:
      description: Upstream provider failure (500–504). Retry with exponential backoff; WanAPIs may auto-failover to a configured channel.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: 'Authenticate every request with `Authorization: Bearer <wanapis_api_key>`.

        Keys are issued per project in the WanAPIs dashboard and may be scoped

        with quota and model availability.

        '