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MCP Harbor

MCP Harbor is a searchable registry of Model Context Protocol servers — about 37,000 of them — with an install guide for every client, per-tool pages, a changelog for each listing, and an MCP endpoint of its own so agents can search it directly.

This wiki explains how it works: where the data comes from, what each kind of page is, how to connect an agent, the REST API, and how the site is run.

Start here

If you want to…	Read
Find and install an MCP server	Using MCP Harbor
Let your agent search the registry itself	Connecting an Agent
Get your server listed	Publishing a Server
Query the registry from code	REST API
Know how listings stay current	How Data Is Collected
Understand a listing's changelog	Changelogs
Run, deploy or configure it	Operations
Work on the code	Development

At a glance

Search: browse every MCP server by name, description, tag or tool name.
For agents: https://ai.mcpharbor.dev/mcp — Streamable HTTP, no account, no key.
For LLMs: llms.txt describes the site and the endpoint.
What changed: the registry-wide changelog.
Official listing: io.github.lbesecker195/mcp-registry-search-directory in the official MCP Registry.
Routing many servers through one endpoint: MCP Gateway.