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Microsoft 365 Agents SDK

SDK for building agents in C#, JavaScript and Python that run on channels such as Microsoft Teams and Microsoft 365 Copilot.

Harness by Microsoft

IndexedMIT★ 1,092
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Install

From the package registry. Read the repository before you give any tool access to your data.

npm install @microsoft/agents-hosting

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About

The SDK provides an agent container with state, storage, and handling of activities and events, so one agent can be deployed to several channels. The README names Microsoft 365 Copilot, Microsoft Teams, and web and custom apps as channels. Language SDKs exist for C#/.NET, JavaScript and Python, and the AI service behind an agent is chosen by the developer. Agents can be tested in Microsoft 365 Agents Playground and deployed to Azure with Azure Bot Service.

Use cases: team-chat, agent-orchestration

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Fact sheet

Languages
C#, JavaScript, PythonREADME
Packages
@microsoft/agents-hosting (npm)
Observability
OpenTelemetryREADME
Deploys to
azurelearn.microsoft.com

Facts extracted by Claude Haiku 5.5 from the linked sources on Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

Signals

Stars
1,092
Forks
346
Open issues
92
Weekly downloads
255,546
Last commit
Oct 23, 2026 (7 days ago)
Last package publish
Sep 29, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Packages
npm @microsoft/agents-hosting
License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

Microsoft 365 Agents SDK. Agent Mart. https://agentmart.dev/harnesses/microsoft-365-agents-sdk (last updated 2026-10-24)