Explore the latest updates to Microsoft 365 Copilot extensibility

Microsoft 365 Copilot recently announced several new features and updates designed to help you build powerful, secure, and scalable AI experiences within Microsoft 365. Below are key resources and information to help you explore and take advantage of these exciting enhancements.

• Take a deep dive into all of the new features, agent development tools, and announcements from Build. Discover how you can utilize the latest SDKs to build your own agents for Microsoft 365 Copilot including the Microsoft 365 Agents SDK.  Learn how to leverage Copilot connectors and actions to boost the knowledge base for your agents, and more! Watch Build sessions on demand

 

• Enterprise-grade AI experiences just got more accessible for developers. The new Microsoft 365 Copilot APIs let you build intelligent apps that are grounded in real user context, securely run within the Microsoft 365 trust boundary, and work with your org’s existing identity and compliance controls.

Whether you're automating meeting follow-ups, building audit trails, or integrating natural language search—these APIs are ready to power your next solution:

o   Interactions Export API

o   Change Notifications API

o   Meeting Insights API

o   Retrieval API

o   Chat API (Private Preview)

Start building today using REST or Graph Explorer. Learn more & explore docs 👉 Read the full blog- Introducing Microsoft 365 Copilot APIs

 

• Introducing the Microsoft 365 Agents Toolkit — your new go-to for building code-first agents and apps across Microsoft 365 Copilot, Teams, and more.

This evolution of the Teams Toolkit supports:

o   Full-stack agent development with integrated Microsoft identity & storage

o   AI-assisted workflows with GitHub Copilot

o   Rapid iteration with live reload secure tunneling & debugging

o   Multi-channel publishing from a single build

Whether you're working in VS Code, Visual Studio, or CLI, this toolkit meets pro-code developers where they are — with zero-config setup and deep extensibility.

Ready to build Copilot agents, intelligent chatbots, or Office add-ins?
Start here 👉Read more- Introducing the Microsoft 365 Agents Toolkit

 

• The Agent Store is live—your new hub to build, publish, and discover purpose-built AI agents for Microsoft 365 Copilot.

Whether you’re creating with low-code in Copilot Studio or going pro-code with the Agents Toolkit, the Agent Store connects your solutions with millions of Microsoft 365 users.

o   Discover 70+ launch agents

o   Publish across Teams & m365copilot.com

o   Get user insights & partner support

Start building the next generation of AI assistants today 👉 Learn more- Introducing the Agent Store: Build, publish, and discover agents in Microsoft 365 Copilot