MCP Registry

The Official MCP Registry is the canonical index of Model Context Protocol servers — the bridge that lets agents like Claude, Cursor, and other MCP-aware clients plug into external tools, data sources, and APIs. It runs as a hosted registry at registry.modelcontextprotocol.io with a browsable web UI (filter by latest versions, paginate through recently updated entries) and a documented REST API so other tools and IDEs can pull live server metadata.

It's primarily for developers building or integrating MCP servers: maintainers publish servers and versions here, and client builders (agent IDEs, orchestration frameworks, marketplaces) consume the registry to surface installable connectors. The project is open source on GitHub, free to use, and supports multiple environments (production, staging, local) so teams can run their own mirror or test against a local instance before publishing.

Because this is infrastructure rather than a polished end-user product, expect rough edges: it's a registry, not a curated marketplace, so quality and abandonment vary server-by-server. But if you're working anywhere in the MCP ecosystem, this is the upstream source of truth.