Nostr Signer
com.frontiercrown.signer/nostr-signer
Approve Nostr signatures with your own browser signer without exposing a private key.
Description as published in the official MCP registry.
Answers the MCP handshake and lists its tools. Checked 2026-10-05.
What we measured
| Endpoint | https://signer.frontiercrown.com/mcp | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (717 ms) | our check, 2026-10-05 |
| Protocol version | 2025-11-25 | our check, 2026-10-05 |
| Tools (17) | get_setup_url, get_signer_status, begin_nostrconnect_pairing, connect_bunker, get_public_key, prepare_note, prepare_event, sign_event, publish_event, query_events, disconnect_signer, get_grynvault_account_dashboard, approve_grynvault_browser_handoff, prepare_grynvault_supporter_invoice, create_grynvault_supporter_invoice, prepare_grynvault_nip05_invoice, create_grynvault_nip05_invoice | tools/list, 2026-10-05 |
| GitHub stars | 0 | github.com/hudhaifahz/nostr-signer-chatgpt |
| Last push | 2026-09-11 | GitHub API |
| Licence | Apache-2.0 | GitHub API |
| Registry version | 0.4.0 · active · updated 2026-09-11 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows a real call went through, not just an opinion. How to file one.
Connect
claude mcp add --transport http nostr-signer https://signer.frontiercrown.com/mcpCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
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Badge for your README
Shows the result of our latest check and links back to this page.
[](https://openforallofus.com/tools/com.frontiercrown.signer/nostr-signer)Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name com.frontiercrown.signer/nostr-signer.