Teams API is now added to beta endpoint in Microsoft Graph. In documentation, you can find it together with Groups. Post, Channel and Chat Thread are available. For example, documentation for "channel" resource is here: https://developer.microsoft.com/en-us/graph/docs/api-reference/beta/resources/channel

Answer from Dragan Panjkov on Stack Overflow
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Microsoft Learn
learn.microsoft.com › en-us › graph › api › resources › teams-api-overview
Use the Microsoft Graph API to work with Microsoft Teams - Microsoft Graph v1.0 | Microsoft Learn
Microsoft Teams is a chat-based workspace in Microsoft 365 that provides built-in access to team-specific calendars, files, OneNote notes, Planner plans, Shifts schedules, and more. You can use the Microsoft Graph API to integrate with Microsoft ...
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Microsoft Learn
learn.microsoft.com › en-us › microsoftteams › platform › toolkit › add-resource
Add Resources and API Connection - Teams | Microsoft Learn
Learn how to add cloud resources such as Azure Functions, Azure API Management and integrate API connections using Agents Toolkit in Visual Studio Code.
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Pipedream
pipedream.com › apps › microsoft-teams
Microsoft Teams API Integrations - Pipedream
Build and run workflows using the Microsoft Teams API. Use 1000s of source-available triggers and actions across 3,000+ apps. Or write custom code to integrate any app or API in seconds.
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Microsoft Learn
learn.microsoft.com › en-us › microsoftteams › platform › apps-in-teams-meetings › meeting-apps-apis
Enhance Meeting Experience with APIs - Teams | Microsoft Learn
Build apps or integrate existing apps within meeting lifecycle. Use APIs to make your app aware of meeting. Select required APIs to improve the meeting experience. ... Use the Microsoft Teams JavaScript client library (TeamsJS) (Version: 1.10 and later) for single sign-on (SSO) to work in meeting ...
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Microsoft Learn
learn.microsoft.com › en-us › microsoftteams › platform › messaging-extensions › create-api-message-extension
Build API-based Message Extension - Teams | Microsoft Learn
API-based message extensions are a Microsoft Teams app capability that integrates external APIs directly into Teams, enhancing your app's usability and offering a seamless user experience.
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Beeper
m.io › blog › microsoft-teams-api
10 Things You Can Do With The Microsoft Teams API (Graph)
Whether it’s creating teams in a set way, with a pre-defined channel list and security settings, chasing owners to archive inactive teams or auditing which applications are installed where – there are a number of different API calls to help you manage the entire lifecycle of a Microsoft Teams team.
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Apideck
apideck.com › connectors › microsoft-teams
Microsoft Teams API integration
Build a Microsoft Teams integration better and faster with Apideck. Pull and push data to Microsoft Teams through our Unified APIs
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nBold
nboldapp.com › microsoft-graph-api-integration-with-teams
Microsoft Graph API Integration with Teams - nBold
November 7, 2024 - Send messages: Use the /chatMessage endpoint for automated notifications or bot interactions. "Graph API makes it easy to integrate with new apps and tweak existing systems", says a Microsoft Graph doc expert.
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Microsoft Learn
learn.microsoft.com › en-us › graph › teams-messaging-overview
Working with Microsoft Teams messaging APIs in Microsoft Graph - Microsoft Graph | Microsoft Learn
Microsoft Graph provides a comprehensive set of Microsoft Teams APIs that enable you to perform operations on Teams messages. This article describes the primary Teams API schema elements and provides an overview of the APIs to use based on high-level scenarios.
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Apix-Drive
apix-drive.com › main page › blog › other
Microsoft Teams API Integration | ApiX-Drive
December 29, 2024 - Integration with third-party apps and services for extended functionality. Customization of user experiences with tabs and adaptive cards. Real-time notifications and updates to keep users informed. The capabilities of Microsoft Teams API empower organizations to tailor their collaboration environment to better suit their unique requirements.
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Microsoft Learn
learn.microsoft.com › en-us › graph › teams-concept-overview
Overview for using Microsoft Teams, Shifts, and Viva Learning to foster teamwork - Microsoft Graph | Microsoft Learn
You can use the cloud communications API to: Create an online meeting. Retrieve meeting details of an online meeting. Join an online meeting. Available on Teams, the Microsoft Shifts app manages shifts, staff scheduling, and time tracking.
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Rollout
rollout.com › integration-guides › ms-teams › sdk › step-by-step-guide-to-building-a-ms-teams-api-integration-in-php
How to build a Microsoft Teams API integration
You've got the client set up? Awesome! Let's make our first API call: $me = $client->getMe(); echo "Hello, " . $me->getDisplayName() . "!"; Look at you go! You're already talking to the Teams API like a pro.
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Microsoft Learn
learn.microsoft.com › en-us › microsoftteams › collaboration-integration
Integrate custom collaboration applications with Microsoft 365 - Microsoft Teams | Microsoft Learn
Overview of the Microsoft Search API in Microsoft Graph · Once you integrated your custom application with Microsoft 365, you can export direct messages, group messages, channel posts (including their replies), call and meeting transcripts and recordings from Teams by using published APIs.
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Microsoft Developer
developer.microsoft.com › en-us › microsoft-teams
Microsoft Teams Platform | Build agents
Discover the latest innovations on the Microsoft Teams platform—including the introduction of Teams SDK, now available for developers. Teams SDK brings advanced capabilities for building intelligent agents and automating workflows, making it easier than ever to integrate AI-powered experiences directly into Teams.
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Edlink Community
ed.link › community › what-can-i-do-with-the-microsoft-graph-api
How to Integrate Using the Graph API for Microsoft Teams – Edlink
September 7, 2023 - The first step to creating a Microsoft Teams integration is to sign up for the Microsoft 365 Developer Program, where you will be given access to a sandbox environment and the Microsoft Education Graph API.