Cloudflare · 2026-04-16 · notable
Cloudflare AI Search — Managed Hybrid Search Primitive for AI Agents
Cloudflare AI Search (formerly AutoRAG) is now a managed hybrid search service for AI agents — create indexed namespaces, upload files, and query with combined semantic + keyword search via REST, Workers binding, or MCP endpoint.
Cloudflare's managed search primitive for AI agents — hybrid vector + keyword retrieval with no database to configure or maintain.
What is it?
Cloudflare AI Search (formerly AutoRAG) is a managed search service that gives AI agents a built-in RAG backend. Create a named search instance, upload files via API, and they're automatically indexed for both vector semantic search and BM25 keyword matching. Agents query in natural language and get ranked results, or create new instances at runtime so each user or session has its own isolated searchable context.
How does it work?
Each instance ships with integrated storage, vector indexing, and a hybrid retrieval pipeline — no external vector database or separate embedding model required. Queries run vector search and BM25 in parallel, then fuse the results. The Workers binding (ai_search_namespaces) enables dynamic instance creation at request time. A built-in MCP endpoint lets agents call the search as a native tool without any integration code. Metadata filtering and relevance boosting let you rank by recency, source type, or custom attributes.
Why does it matter?
Building a production RAG system from scratch means managing a vector database, embedding pipeline, keyword index, and file storage separately. AI Search collapses all four into a single Workers-native service with one billing account. The MCP endpoint is particularly useful — agents can search a knowledge base as a tool call with no wiring code. Launched April 16 as part of Cloudflare Agents Week alongside Artifacts, Email for Agents, and the AI Platform.
Who is it for?
Developers building AI agents or RAG-powered apps on Cloudflare Workers.
Try it
npx wrangler ai-search create my-search