Nostr Signer MCP Server

Nostr Signer is an MCP integration. Approve Nostr signatures with your own browser signer without exposing a private key.

Hosted connection

The registry lists a streamable-http connection at https://signer.frontiercrown.com/mcp.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository. This profile uses version 0.4.0 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

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