{"id":24424,"date":"2025-06-27T10:30:22","date_gmt":"2025-06-27T17:30:22","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/?p=24424"},"modified":"2025-06-27T08:53:17","modified_gmt":"2025-06-27T15:53:17","slug":"microsoft-365-copilot-apis-unlocking-enterprise-knowledge-for-ai-with-the-retrieval-api","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/microsoft-365-copilot-apis-unlocking-enterprise-knowledge-for-ai-with-the-retrieval-api\/","title":{"rendered":"Microsoft 365 Copilot APIs: Unlocking\u00a0enterprise\u00a0knowledge\u00a0for AI\u00a0with the Retrieval API\u00a0\u2014 Now in Public Preview"},"content":{"rendered":"

At Build 2025, we introduced the Microsoft 365 Copilot APIs<\/a>. Developers now have an extensibility layer that empowers them to create intelligent, AI-driven experiences deeply integrated with the Microsoft 365 ecosystem. These APIs unlock powerful capabilities like content retrieval, meeting summarization, and user interaction export and accelerate innovation while ensuring enterprise-grade security and compliance.<\/span>\u00a0<\/span><\/p>\n

Today,\u202fwe\u2019re\u202fexcited to announce that the\u202f<\/span>Retrieval API<\/span><\/b>, one of the most requested APIs in the set, is now available in\u202f<\/span>Public Preview<\/span><\/b>.\u202f<\/span>\u00a0<\/span><\/p>\n

The Retrieval API gives developers a\u202fsecure,\u202fcompliant\u202fand scalable\u202fway to integrate enterprise content into their AI workflows. Whether\u202fyou\u2019re\u202fbuilding RAG pipelines, domain-specific\u202fagents\u202for\u202fmining\u202finsights,\u202fit\u202fprovides\u202fa powerful\u202ffoundation\u202ffor grounding large language models in\u202ftrusted\u202forganization\u2019s\u202fknowledge\u202fwith minimal setup\u202fand maximum\u202fflexibility.\u202f<\/span>\u00a0<\/span><\/p>\n

Early adopters such as Accenture, Thomson Reuters, Peppermint, Templafy, and Petrobras are already putting the Retrieval API to work and powering value across a range of enterprise AI use cases.<\/span>\u00a0<\/span><\/p>\n

\u201cAt Accenture, we view the Retrieval API as a transformative advancement in our multi-platform agentic strategy. It extends the capabilities of our\u202fsubstantial\u202fMicrosoft 365 Copilot footprint by enabling intelligent, context-aware agents to\u202foperate\u202fseamlessly across various environments. This API allows our custom applications and agents to securely access Microsoft 365 data while\u202fmaintaining\u202fexisting permissions, simplifying development and ensuring built-in compliance.\u201d\u202f\u2013\u202fAccenture<\/strong><\/span><\/i>\u202f<\/span>\u00a0<\/span><\/p><\/blockquote>\n

Why\u202fit\u202fmatters: Built for\u202fenterprise-grade AI<\/h2>\n

Building AI experiences in the enterprise\u202fisn\u2019t\u202fjust about model\u202fquality;\u202fit\u2019s\u202fabout trust, scale, and seamless integration with how your organization works. The Retrieval API is designed to meet that bar, enabling developers to innovate confidently with secure, scalable access to enterprise knowledge.\u202f<\/span>\u00a0<\/span><\/p>\n

The Retrieval API enables natural language queries over Microsoft 365 content, returning relevant, permission-trimmed\u202fsnippets ready\u202fto ground AI experiences. With a simple REST call, developers can retrieve knowledge from\u202fSharePoint Online\u202fand\u202fCopilot\u202fconnector\u2013indexed content, making it easy to build intelligent, context-aware solutions.<\/span>\u00a0<\/span><\/p>\n

\u201cAs a customer who is heavily invested in Microsoft’s storage, SharePoint Online and OneDrive, the main benefit of\u202fthe Retrieval API is relieving\u202fus\u202fof the weight of managing content indexing. With the Retrieval API,\u202fwe\u202fcan\u202fmaintain\u202four\u202fown post processing flows and create agents while still being\u202fable to access raw content and\u202fleverage\u202fit through the gen AI platform of\u202four\u202fchoice.\u201d\u202f\u2013\u202fPetrobras<\/strong><\/span><\/i>\u202f<\/span>\u00a0<\/span><\/p><\/blockquote>\n

Here\u2019s\u202fwhat makes the Retrieval API stand out:\u202f<\/span>\u00a0<\/span><\/p>\n