{"name":"x402 Receipt Verifier","description":"Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed receipt proving a specific payment correlates with a real, successful call.","url":"https://x402-receipt-verifier-325572559480.us-central1.run.app","version":"1.0.0","documentationUrl":"https://x402-receipt-verifier-325572559480.us-central1.run.app/docs","provider":{"organization":"nexus-mcp-infra","url":"https://github.com/nexus-mcp-infra"},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"additionalInterfaces":[{"url":"https://x402-receipt-verifier-325572559480.us-central1.run.app/mcp","transport":"MCP"}],"skills":[{"id":"nexus_x402_receipt_verifier_verify_payment_receipt","name":"Verify Payment Receipt","description":"Audit one x402 payment against NEXUS's own delivery logs, get a signed receipt.","tags":["x402","payments","audit","receipt","trust"]}],"metadata":{"protocol_note":"POST /verify-payment-receipt and POST /payer-spend-health are each charged $0.02 via x402 (Base Sepolia TESTNET, not real funds). POST /verify-receipt-signature is free. Scope: only covers NEXUS's own deployed x402 assets -- see README for the full list and known asset_name spelling gotchas. Payment settles BEFORE the handler runs, same as this codebase's other paid assets: a PAYMENT_NOT_FOUND verdict is still a charged, valid answer."}}