Skip to content

Zed RDAP API nameserver-lookup

How to: Zed RDAP API nameserver-lookup

client:Zed transport:streamable-http tool:nameserver-lookup

Add RDAP API to Zed

  1. 01

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

{
  "context_servers": {
    "rdap": {
      "url": "https://rdapapi.io/mcp/rdap"
    }
  }
}
  1. 02

    Save the file and restart Zed.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that RDAP API'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 24 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.