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mcp/harbor

Windsurf Nostr Signer approve_grynvault_browser_handoff

How to: Windsurf Nostr Signer approve_grynvault_browser_handoff

client:Windsurf transport:streamable-http tool:approve_grynvault_browser_handoff

Add Nostr Signer to Windsurf

  1. 01

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

{
  "mcpServers": {
    "nostr-signer": {
      "serverUrl": "https://signer.frontiercrown.com/mcp"
    }
  }
}
  1. 02

    Save the file and restart Windsurf.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that Nostr Signer'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

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.

Nostr Signer MCP server