maximumsats-mcp

As MCP servers proliferate, a critical question emerges:How do we secure and monetize MCP API access in a decentralized way?

- L402 Payment Endpoints— Every API call can require payment in satoshis
- Web of Trust (WoT) Scoring— Sybil-resistant reputation for Nostr users
- Nostr ID Utilities— Decoding/encoding npub, note, nprofile, nevent, naddr, and more

- Bounty Platforms— Pay hunters per task, prevent sybil with WoT
- AI Agent Marketplaces— Monetize MCP tools per-call
- Data Feeds— Secure oracle data with L402
- Reputation Systems— WoT-powered trust scoring

Get Started: One Payment, One Retry L402 Flow

The MaximumSats API uses L402 — here's exactly how to pay and get results:

# Step 1: Request (returns 402 with Lightning invoice) curl -X POST "https://maximumsats.com/api/bolt11-decode" \ -H "Content-Type: application/json" \ -d '{"invoice":"lnbc1..."}' # Response: {"error":"Payment required","payment_request":"lnbc...","payment_hash":"abc123...","amount_sats":21} # Step 2: Pay the invoice in your Lightning wallet, then retry with payment_hash: curl -X POST "https://maximumsats.com/api/bolt11-decode" \ -H "Content-Type: application/json" \ -H "Authorization: abc123..." \ -d '{"invoice":"lnbc1..."}' # Response: {"status":"success","data":{...}}

Check a user's reputation before paying a bounty

curl -s "https://wot.klabo.world/score/npub1..." | jq '.score' # Returns: {"score": 42, "rank": 1234, "percentile": 95.5}

Decode a Lightning invoice before payment

curl -X POST "https://maximumsats.com/api/bolt11-decode" \ -H "Content-Type: application/json" \ -d '{"invoice":"lnbc..."}' # Returns: amount, description_hash, expiry, payee pubkey

curl -X POST "https://maximumsats.com/api/nip05-verify" \ -H "Content-Type: application/json" \ -d '{"identifier":"bob@nostr.com"}' # Returns: pubkey, valid boolean, relay hints

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