A Nostr MCP (Model Context Protocol) server with NIP-46 remote signing support. Private keys never need to touch the AI context window.
Connect directly without running locally:
https://nostr.jorgenclaw.ai/mcpTransport: Streamable HTTP (MCP spec 2025-03-26) — compatible with Claude Desktop, Cursor, Glama, Smithery, and any MCP client.
Legacy SSE endpoint (backward compat): https://nostr.jorgenclaw.ai/sse
Related MCP server: nostr-bray
Get a yourname@jorgenclaw.ai verified Nostr identity — registered by an AI agent over Lightning.
How to register:
Open any Nostr client (Amethyst, Primal, Damus, etc.)
DM this npub: npub16pg5zadrrhseg2qjt9lwfcl50zcc8alnt7mnaend3j04wjz4gnjqn6efzc
Send the message: register yourname
Pay the Lightning invoice that arrives in reply (1,000 sats)
Done — yourname@jorgenclaw.ai resolves immediately on all Nostr clients
Uses NIP-17 gift-wrapped DMs. Works with all modern Nostr clients.
NIP-46 bunker mode — Set NOSTR_BUNKER_URI once, all signing routes through your bunker
Direct key mode — Pass privateKey per-tool call (backwards compatible)
23 tools — Notes, profiles, social actions, DMs (NIP-04/44), relay lists, zaps, fetch
MCP native — Works with any MCP-compatible client
npm install
npm run buildnode dist/index.jsTools require privateKey parameter on each signing call.
NOSTR_BUNKER_URI="bunker://<pubkey>?relay=wss://relay.example.com&secret=abc" node dist/index.jsAll signing tools use the bunker. privateKey parameter becomes optional.
Tool | Description |
| Create, sign, and publish a text note |
| Create unsigned text note |
| Sign a note event |
| Publish signed note to relays |
| Create unsigned event of any kind |
| Sign any unsigned event |
| Publish signed event to relays |
| Create Nostr profile (kind 0) |
| Update existing profile |
| Follow a pubkey |
| Unfollow a pubkey |
| React to event (kind 7) |
| Repost event (kind 6) |
| Delete events (kind 5) |
| Reply with NIP-10 threading |
| NIP-04 encryption |
| Send NIP-04 DM |
| NIP-44 encryption |
| Send NIP-44 DM |
| Publish relay list (NIP-65) |
| Check signing mode and pubkey |
| Fetch a Nostr profile |
| Fetch events from relays |
Format: bunker://<bunker-hex-pubkey>?relay=wss://relay.com&secret=optional
Compatible with: nsecbunker, Amber, any NIP-46 signer.
For agents that need verifiable signed actions with a Lightning-gated audit trail:
https://mcp.jorgenclaw.ai/mcp9 tools, sats per call, LCS-1 action receipts. No signup.
nostr-tools — Nostr protocol library (signing, encryption, NIP-46)
@modelcontextprotocol/sdk — MCP server framework
ws — WebSocket for Node.js relay connections
zod — Input validation
MIT
Create an unsigned Nostr event of any kind
Inputs: kind (required), content (required), tags.
Create an unsigned kind 1 text note
Inputs: content (required), tags.
Create a new Nostr profile (kind 0)
Inputs: name, about, picture, nip05, +5 more.
Decrypt NIP-04 ciphertext
Inputs: ciphertext (required), senderPubkey (required), privateKey.
Decrypt NIP-44 ciphertext
Inputs: ciphertext (required), senderPubkey (required), privateKey.
Delete events (kind 5)
Inputs: eventIds (required), reason, privateKey, relays.
Encrypt text with NIP-04 (legacy)
Inputs: plaintext (required), recipientPubkey (required), privateKey.
Encrypt text with NIP-44
Inputs: plaintext (required), recipientPubkey (required), privateKey.
Follow a pubkey (updates kind 3 contact list)
Inputs: pubkeyToFollow (required), privateKey, relays.
Returns current signing configuration and pubkey
Inputs: no named parameters.
Create, sign, and publish a text note (all-in-one)
Inputs: content (required), tags, privateKey, relays.
Publish a signed event to relays
Inputs: signedEvent (required), relays.
Publish a signed note to relays
Inputs: signedEvent (required), relays.
React to an event (kind 7)
Inputs: eventId (required), eventPubkey (required), reaction, privateKey, +1 more.
Reply to an event with NIP-10 threading
Inputs: eventId (required), eventPubkey (required), content (required), rootEventId, +2 more.
Repost an event (kind 6)
Inputs: eventId (required), eventPubkey (required), relayUrl, privateKey, +1 more.
Send a NIP-04 direct message
Inputs: content (required), recipientPubkey (required), privateKey, relays.
Send a NIP-44 direct message
Inputs: content (required), recipientPubkey (required), privateKey, relays.
Publish a relay list (NIP-65 kind 10002)
Inputs: readRelays, writeRelays, readWriteRelays, privateKey, +1 more.
Sign any unsigned Nostr event
Inputs: unsignedEvent (required), privateKey.
Sign a note event
Inputs: unsignedEvent (required), privateKey.
Unfollow a pubkey
Inputs: pubkeyToFollow (required), privateKey, relays.
Update an existing Nostr profile (merges with current)
Inputs: name, about, picture, nip05, +5 more.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Scored across 23 tools
Many tools overlap conceptually: e.g., 'createNostrEvent' vs 'createNote', 'postNote' vs 'createNote'+'signNote'+'publishNote', and 'publishNostrEvent' vs 'publishNote'. The distinction between generic and specific tools is unclear, causing potential confusion for agents.
All names use camelCase, but patterns are mixed: some are verb+object ('createNote'), others verb+protocol ('decryptNip04'), and some use prepositions ('reactToEvent', 'replyToEvent'). While readable, the inconsistency in verb choice and structure reduces predictability.
With 23 tools, the server covers many Nostr operations. While slightly high, most tools have distinct roles in sending, receiving, and managing events. A few could be merged (like generic vs specific event creation), but overall the count is reasonable for a comprehensive Nostr toolset.
The server focuses exclusively on writing and event creation operations (create, sign, publish, encrypt). There are no tools for reading or querying events (e.g., subscribe, fetch filters), which is a major gap for an agent to usefully interact with Nostr. The set is severely one-sided.
Agent registry with Nostr identity, reputation, escrow, observability, and Lightning payments.
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