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Approve Nostr signatures with your own browser signer without exposing a private key.
npx @getmcp/cli add com.frontiercrown.signer/nostr-signerRequires Node.js 18+. Community-contributed server. Review source before installing.
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"com.frontiercrown.signer/nostr-signer": {
"url": "https://signer.frontiercrown.com/mcp",
"transport": "streamable-http"
}
}
}