Model Context Protocol - official servers repo documentation

What it does

The official reference-implementation repository for MCP, "managed by Anthropic, but built together with the community" - ships a small set of maintained example servers (Everything, Fetch, Filesystem, Git, Memory, Sequential Thinking, Time) intended as educational references, not production integrations.

Access and connection

MCP support: official

Access requirements: free (open source; dual-licensed Apache 2.0 for new contributions, MIT for existing code)

Authentication: Per-server - individual servers take credentials (e.g. API tokens) via environment variables or CLI args where needed; the repo itself has no central auth layer.

Research checked: 2026-08-24

These details come from the catalog research. Check the vendor sources below for current setup instructions. They do not establish that a connection or tool call was tested.