Discover what’s new in Microsoft 365 Copilot APIs — Retrieval API is now GA, and Chat and Search APIs are in public preview. Learn how these APIs, as part of Work IQ, deliver secure, permission-aware experiences and see real-world examples from SAP, Miro, and other customers.

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Microsoft announces major updates to its Copilot APIs at Ignite 2025: the Retrieval API reaches general availability with OneDrive support and relevance scoring, while Chat and Search APIs enter public preview. These APIs enable developers to build grounded AI experiences that respect Microsoft 365 permissions without managing custom indexes. The Retrieval API now extracts text from tables and supports Copilot connectors, the Chat API offers multi-turn conversations with streaming and citations, and the Search API provides hybrid semantic search across OneDrive. Companies like SAP, Miro, Mercedes-Benz, and Koch are already integrating these APIs into their products. Future updates will add SharePoint Embedded support, Excel file handling, content creation capabilities, and People search.

Microsoft 365 Copilot APIs: What’s New and What’s Next

Retrieval API is now generally available Copy link

Search API now in public preview Copy link

Real-world Impact: What’s Possible with Copilot APIs Copy link