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Zed US Codex citations

How to: Zed US Codex citations

client:Zed transport:streamable-http tool:citations

Add US Codex to Zed

  1. 01

    Open ~/.config/zed/settings.json and merge this in. Keep any servers already there.

{
  "context_servers": {
    "uscodex": {
      "url": "https://uscodex.org/mcp"
    }
  }
}
  1. 02

    Save the file and restart Zed.

  2. 03

    Ask for something citations does. Zed lists the server's tools on connect and calls citations itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that US Codex's identifier in your config matches the one above exactly.

Merge this into your existing settings object — do not replace the file. Zed docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 25 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.