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Request
POST /api/users
↓
Response
200 OK
{ "name": "John", "created_at": "2025-11-16T..." }

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openapi 3.1.0
info:
  title OpenAI API
  description The OpenAI REST API. Please see https://platform.openai.com/docs/api-reference for more details.
  version 2.3.0
  termsOfService https://openai.com/policies/terms-of-use
  contact:
    name OpenAI Support
    url https://help.openai.com/
  license:
    name MIT
    url https://github.com/openai/openai-openapi/blob/master/LICENSE
servers:
  - url: https://api.openai.com/v1
security:
  - ApiKeyAuth: []
tags:
  - name: Assistants
    description Build Assistants that can call models and use tools.
  - name: Audio
    description Turn audio into text or text into audio.
  - name: Chat
    description Given a list of messages comprising a conversation, the model will return a response.
  - name: Completions
    description Given a prompt, the model will return one or more predicted completions.
  - name: Embeddings
    description Get a vector representation of a given input.
  - name: Files
    description Files are used to upload documents that can be used with features like Assistants.
  - name: Images
    description Given a prompt and/or an input image, the model will generate a new image.
  - name: Models
    description List and describe the various models available in the API.
paths:
  /chat/completions:
    post:
      operationId createChatCompletion
      tags:
        - Chat
      summary Creates a model response for the given chat conversation.
      requestBody:
        required true
        content:
          application/json:
            schema:
              type object
              properties:
                model:
                  type string
                  description ID of the model to use.
                messages:
                  type array
                  items:
                    type object
                    properties:
                      role:
                        type string
                        enum [system, user, assistant]
                      content:
                        type string
      responses:
        '200':
          description OK
          content:
            application/json:
              schema:
                type object
                properties:
                  id:
                    type string
                  object:
                    type string
                  created:
                    type integer
                  model:
                    type string
                  choices:
                    type array
                    items:
                      type object
                      properties:
                        index:
                          type integer
                        message:
                          type object
                        finish_reason:
                          type string
                  usage:
                    type object
                    properties:
                      prompt_tokens:
                        type integer
                      completion_tokens:
                        type integer
                      total_tokens:
                        type integer
  /models:
    get:
      operationId listModels
      tags:
        - Models
      summary Lists the currently available models.
      responses:
        '200':
          description OK
          content:
            application/json:
              schema:
                type object
                properties:
                  data:
                    type array
                    items:
                      type object
                      properties:
                        id:
                          type string
                        object:
                          type string
                        created:
                          type integer
                        owned_by:
                          type string

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