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What is the MCP Registry?

The MCP Registry (registry.modelcontextprotocol.io) is the official directory of MCP servers - like an app store for AI coding agents. It’s community-owned and serves as the canonical source for publicly-available MCP servers.

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Building Subregistries

Many organizations build subregistries that add value through curation, enhanced metadata, or focus on specific use cases. These subregistries typically:
  • Pull servers from the official registry via API
  • Add custom metadata, ratings, or curation
  • Serve specific communities or enterprise needs

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Including Ref in Your Registry

Ref is available in the official MCP registry and provides essential documentation search capabilities for AI coding agents.
Ref MCP registry name
tools.ref/ref-tools-mcp

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Get Ref’s Registry Data

curl "https://registry.modelcontextprotocol.io/v0/servers?search=tools.ref/ref-tools-mcp"
This returns Ref’s complete server metadata that you can import into your own registry.

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Resources

Browse Official Registry

Explore all available MCP servers.

Ref on GitHub

View Ref’s source code and documentation.