Windsurf Mailrith Email Marketing custom_fields_list

How to: Windsurf Mailrith Email Marketing custom_fields_list

client:Windsurf transport:streamable-http tool:custom_fields_list

Add Mailrith Email Marketing to Windsurf

01
Open ~/.codeium/windsurf/mcp_config.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "mailrith": {
      "serverUrl": "https://api.mailrith.com/mcp"
    }
  }
}

02
Save the file and restart Windsurf.
03
Ask for something custom_fields_list does. Windsurf lists the server's tools on connect and calls custom_fields_list itself — you do not invoke it by name.
04
If nothing happens, check the server is running and that Mailrith Email Marketing's identifier in your config matches the one above exactly.

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs

Set these first

Mailrith Email Marketing will not start until these are set, so custom_fields_list never becomes available.

MAILRITH_API_KEY

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.

Mailrith Email Marketing MCP server