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Cursor Nostr Signer prepare_grynvault_supporter_invoice

How to: Cursor Nostr Signer prepare_grynvault_supporter_invoice

client:Cursor transport:streamable-http tool:prepare_grynvault_supporter_invoice

Add Nostr Signer to Cursor

  1. 01

    Open ~/.cursor/mcp.json and merge this in. Keep any servers already there.

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

    Save the file and restart Cursor.

  2. 03

    Ask for something prepare_grynvault_supporter_invoice does. Cursor lists the server's tools on connect and calls prepare_grynvault_supporter_invoice 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.

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor 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.