openapi: 3.0.3
info:
  title: Stream Chat API (Server-side REST) Application Members API
  description: 'Server-side REST API for Stream (GetStream.io) Chat. This is a curated subset of Stream''s published Chat protocol (https://getstream.github.io/protocol), grounding the endpoints modeled in the API Evangelist catalog against the real base URL and paths. The Chat API is addressed at https://chat.stream-io-api.com. Every request carries the application `api_key` as a query parameter and is authenticated with a JWT sent in the `Authorization` header together with a `Stream-Auth-Type: jwt` header. Server-side tokens (no `user_id` claim) are used for the operations in this document; client tokens are used to open the real-time WebSocket connection modeled in the companion AsyncAPI document.

    Path and method choices here are taken from Stream''s official chat-openapi.yaml (github.com/GetStream/protocol). Request and response bodies are represented generically; consult the linked protocol reference for the full schemas.'
  version: '1.0'
  contact:
    name: API Evangelist
    url: https://apievangelist.com
    email: kin@apievangelist.com
  license:
    name: API documentation - Stream Terms
    url: https://getstream.io/legal/terms/
servers:
- url: https://chat.stream-io-api.com
  description: Stream Chat API (edge, global)
security:
- JWT: []
  ApiKey: []
tags:
- name: Members
  description: Query and partially update channel members.
paths:
  /channels/{type}/{id}/member:
    parameters:
    - $ref: '#/components/parameters/ChannelType'
    - $ref: '#/components/parameters/ChannelId'
    patch:
      operationId: UpdateMemberPartial
      tags:
      - Members
      summary: Partially update a channel member
      description: Set or unset channel-scoped attributes for a member, such as notifications muted, pinned, or archived state.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                set:
                  type: object
                unset:
                  type: array
                  items:
                    type: string
      responses:
        '200':
          description: The updated channel member.
          content:
            application/json:
              schema:
                type: object
        '429':
          $ref: '#/components/responses/TooManyRequests'
  /members:
    get:
      operationId: QueryMembers
      tags:
      - Members
      summary: Query members
      description: Query channel members across the application with filtering and sorting.
      parameters:
      - name: payload
        in: query
        description: URL-encoded JSON query (filter_conditions, sort, limit, offset).
        schema:
          type: string
      responses:
        '200':
          description: A list of members.
          content:
            application/json:
              schema:
                type: object
                properties:
                  members:
                    type: array
                    items:
                      type: object
        '429':
          $ref: '#/components/responses/TooManyRequests'
components:
  parameters:
    ChannelType:
      name: type
      in: path
      required: true
      description: The channel type, e.g. messaging, livestream, team, gaming, commerce.
      schema:
        type: string
    ChannelId:
      name: id
      in: path
      required: true
      description: The channel id, unique within the channel type.
      schema:
        type: string
  schemas:
    APIError:
      type: object
      properties:
        code:
          type: integer
        message:
          type: string
        StatusCode:
          type: integer
        duration:
          type: string
        more_info:
          type: string
  responses:
    TooManyRequests:
      description: Rate limit exceeded for this app, platform, and endpoint. Inspect the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset headers.
      headers:
        X-RateLimit-Limit:
          schema:
            type: integer
        X-RateLimit-Remaining:
          schema:
            type: integer
        X-RateLimit-Reset:
          schema:
            type: integer
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/APIError'
  securitySchemes:
    JWT:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 'A Stream JWT sent in the `Authorization` header. Server-side tokens omit the `user_id` claim; a `Stream-Auth-Type: jwt` header must accompany the request.'
    ApiKey:
      type: apiKey
      in: query
      name: api_key
      description: The application API key, sent as the `api_key` query parameter on every request.