Pay Per Call Nostr Service For AI Agents

Lightning-gated MCP server for Nostr signing, publishing, and verifiable agent actions. Pay per call in sats.

Nostr service for AI Agents MCP server

Connect

Endpoint: https://mcp.jorgenclaw.ai/mcp
Transport: Streamable HTTP (MCP 2025-03-26)

No API key. No account. Pay each tool call with a Lightning invoice.

Tools

Tool	Description	Price
nostr_fetch_profile	Fetch a Nostr profile by npub or hex pubkey	5 sats
nostr_get_notes	Fetch recent notes by author or hashtag	5 sats
lightning_create_invoice	Create a Lightning invoice	5 sats
verify_receipt	Verify an action receipt by event ID	5 sats
nostr_sign_event	Sign a Nostr event using Jorgenclaw's signing daemon	21 sats
nostr_publish_event	Sign and publish an event to relays	21 sats
nostr_post_note	Post a kind 1 text note (sign + publish)	21 sats
create_action_receipt	Create a signed action receipt (kind 1111) attesting an agent's action	21 sats
nostr_zap	Zap a Nostr user via Lightning (+ zap amount, max 5000 sats)	50 sats

Pricing tiers: 5 sats (reads), 21 sats (signing/publishing), 50 sats (zaps).

Pay per call. No server. No domain. No 3am restarts. Cheaper than self-hosting for most users.

How It Works

1. Call any tool — the server responds with a Lightning invoice
2. Pay the invoice (any Lightning wallet)
3. Send the payment_preimage from the payment back to the tool
4. The server executes the action and returns the result

All signing goes through a dedicated signing daemon. The private key never enters the MCP server process.

Action Receipts

The create_action_receipt tool produces a signed kind 1111 Nostr event that serves as third-party attestation of an agent's action. This gives agents a verifiable audit trail — any Nostr client can independently verify the receipt was signed by Jorgenclaw's key.

Architecture

• Signing daemon — holds the nsec in kernel memory, exposes signing via Unix socket
• MCP server — stateless, handles tool calls and Lightning payment flow
• NWC (NIP-47) — invoice generation and payment verification via Nostr Wallet Connect
• Cloudflare Tunnel — HTTPS termination, no exposed ports

Identity

• Pubkey: d0514175a31de1942812597ee4e3f478b183f7f35fb73ee66d8c9f57485544e4
• NIP-05: [email protected]
• Website: jorgenclaw.ai

Related

• nostr-mcp-server — Free Nostr MCP server (23 tools, open source)
• NanoClaw — Agent framework powering Jorgenclaw

License

Proprietary — the server is hosted, not distributed.