Microsoft Office Applications Teams API

openapi: 3.1.0
info:
  title: Microsoft Graph API - Office Applications Drive Teams API
  description: A subset of Microsoft Graph v1.0 endpoints used to interact with Microsoft Office 365 services - Outlook mail, OneDrive files, and Microsoft Teams. Microsoft Graph is the unified REST API for Microsoft 365 services and uses OAuth 2.0 (Microsoft Entra ID) for authentication.
  version: '1.0'
servers:
- url: https://graph.microsoft.com/v1.0
  description: Microsoft Graph v1.0 production endpoint
security:
- oauth2: []
tags:
- name: Teams
paths:
  /me/joinedTeams:
    get:
      tags:
      - Teams
      summary: List teams the signed-in user is a member of
      operationId: listMyJoinedTeams
      responses:
        '200':
          description: Collection of teams
          content:
            application/json:
              schema:
                type: object
  /teams/{team_id}:
    get:
      tags:
      - Teams
      summary: Get a team by id
      operationId: getTeam
      parameters:
      - name: team_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Team
          content:
            application/json:
              schema:
                type: object
  /teams/{team_id}/channels:
    get:
      tags:
      - Teams
      summary: List channels in a team
      operationId: listTeamChannels
      parameters:
      - name: team_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Collection of channels
          content:
            application/json:
              schema:
                type: object
    post:
      tags:
      - Teams
      summary: Create a channel in a team
      operationId: createTeamChannel
      parameters:
      - name: team_id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
      responses:
        '201':
          description: Created channel
          content:
            application/json:
              schema:
                type: object
  /teams/{team_id}/channels/{channel_id}/messages:
    get:
      tags:
      - Teams
      summary: List chat messages in a channel
      operationId: listChannelMessages
      parameters:
      - name: team_id
        in: path
        required: true
        schema:
          type: string
      - name: channel_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Collection of chatMessages
          content:
            application/json:
              schema:
                type: object
    post:
      tags:
      - Teams
      summary: Send a chat message to a channel
      operationId: sendChannelMessage
      parameters:
      - name: team_id
        in: path
        required: true
        schema:
          type: string
      - name: channel_id
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
      responses:
        '201':
          description: Created chatMessage
          content:
            application/json:
              schema:
                type: object
components:
  securitySchemes:
    oauth2:
      type: oauth2
      description: Microsoft Entra ID (Azure AD) OAuth 2.0. Use the authorization code, client credentials, or device code flow depending on the scenario.
      flows:
        authorizationCode:
          authorizationUrl: https://login.microsoftonline.com/common/oauth2/v2.0/authorize
          tokenUrl: https://login.microsoftonline.com/common/oauth2/v2.0/token
          scopes:
            Mail.Read: Read user mail
            Mail.Send: Send mail as user
            Files.Read: Read user files
            Files.ReadWrite: Read and write user files
            Team.ReadBasic.All: Read basic team info
            ChannelMessage.Send: Send channel messages
            User.Read: Sign in and read user profile
x-generated-from: https://learn.microsoft.com/en-us/graph/overview
x-generated-by: claude-genwave10-08-2026-05-23