ERC-8004 identity, x402 payments, and arbitration protocol for autonomous agent commerce. The three rails for the machine economy.
receipts-guard v0.7.1 - 🔐 Added HTTP API authentication with API Key and DID signature support - 🛡️ Authorization checks: only counterparties can accept proposals via API - 🌐 CORS restricted: default block, configurable allowed origins - ⚡ Implemented rate limiting (100 requests/min per IP) - ✅ Input validation for payment address, amount, and deadlines on proposals - Clear separation of protected vs public HTTP endpoints in server mode