com.frontiercrown.signer/nostr-signer · v0.4.0 · finance-and-payments
Nostr Signer is healthy: it completed an MCP handshake in 791 ms and exposes 17 tools.
Approve Nostr signatures with your own browser signer without exposing a private key.
Endpoint: https://signer.frontiercrown.com/mcp (streamable-http)
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| Users (last 30 days) | 0 |
| Handshake | Healthy |
| Auth needed | None |
| Tool count | 17 |
| Latency | 791 ms |
| Last checked (UTC) | 2026-10-17T04:00:41.304Z |
| Checked (UTC) | Status | Latency | Error |
|---|---|---|---|
| 2026-10-17T04:00:41.304Z | Healthy | 791 | |
| 2026-10-15T21:05:11.472Z | Healthy | 1334 | |
| 2026-10-14T19:30:39.385Z | Healthy | 2264 |
get_setup_url | Return the loopback-only page used to connect a NIP-07 browser extension or an advanced NIP-46 signer. |
get_signer_status | Check whether a user-controlled NIP-07 or NIP-46 signer is connected. |
begin_nostrconnect_pairing | Advanced fallback: create a nostrconnect:// URI for the user to scan or open in a remote signer. Never accepts an nsec. |
connect_bunker | Connect a bunker:// URI only when the user knowingly supplied it. Prefer the local setup page so connection secrets are not placed in chat. Never accepts an nsec. |
get_public_key | Return the public key exposed by the currently paired signer. |
prepare_note | Prepare and bind an exact unsigned kind:1 note for user review. This does not sign or publish. |
prepare_event | Validate and bind an exact unsigned Nostr event for user review. This does not sign or publish. Show the user every field before requesting a signature. |
sign_event | Ask the paired signer to approve and sign the exact event bound to a fresh intent. Requires explicit user intent and never publishes. |
publish_event | Publish a previously verified signed event to configured relays. Requires separate explicit user intent. |
query_events | Read a bounded set of verified public profile or note events from selected relays. |
disconnect_signer | Forget the in-memory signer session and all prepared events. |
get_grynvault_account_dashboard | Read the connected Nostr identity's Grynvault supporter, payment, and NIP-05 dashboard using a short-lived signed authorization. This does not create an invoice or change settlement. |
approve_grynvault_browser_handoff | Sign a short-lived, read-only Grynvault account handoff code so the browser tab that created it can receive its own dashboard. This does not create an invoice, publish a Nostr event, change settlement, or grant wallet custody. |
prepare_grynvault_supporter_invoice | Prepare an exact, short-lived signed-authorization request for a one-time donation of 21 to 1,000,000 sats or the fixed 2,100-sat 30-day membership. Does not sign, create, pay, or settle an invoice. |
create_grynvault_supporter_invoice | After separate explicit user confirmation, sign the prepared authorization and create exactly one pending Grynvault supporter invoice. Does not pay it and never treats a redirect as settlement. |
prepare_grynvault_nip05_invoice | Check and normalize a name@frontiercrown.com identifier, then prepare its exact 2,000-sat invoice authorization. Does not sign, reserve the name, create, pay, or settle an invoice. |
create_grynvault_nip05_invoice | After separate explicit user confirmation, sign the prepared authorization and create exactly one pending 2,000-sat name@frontiercrown.com invoice. Does not pay, settle, activate, or prove identity. |