{"protocolVersion":"1.0","name":"PulseFeed x402 Trust Oracle","description":"Ask before you pay: PulseFeed tells an AI agent whether an x402 payment endpoint is safe to pay — liveness, anomaly scan (receiver changes, price bait-and-switch, honeypot receivers, wrong asset), on-chain receiver verification on Base, and an open 0-100 Trust Score. Built on a continuous independent audit of the whole x402 ecosystem (~5,600 endpoints (v1 body + v2 PAYMENT-REQUIRED header) tracked, ~38% dead or invalid) plus a security audit of the MCP server ecosystem.","version":"1.0.0","provider":{"organization":"PulseFeed","url":"https://pulsefeed.dev"},"supportedInterfaces":[{"url":"https://pulsefeed.dev/a2a","protocolBinding":"JSONRPC","protocolVersion":"1.0"}],"url":"https://pulsefeed.dev/a2a","preferredTransport":"JSONRPC","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"defaultInputModes":["text/plain","application/json"],"defaultOutputModes":["application/json","text/plain"],"securitySchemes":{},"securityRequirements":[],"documentationUrl":"https://pulsefeed.dev/methodology","iconUrl":"https://pulsefeed.dev/badge.svg","skills":[{"id":"verify-x402-endpoint","name":"Verify an x402 endpoint before paying","description":"Given an x402 endpoint URL, return a pay/avoid verdict with trust score, anomaly flags, receiver stability and on-chain receiver profile. Free (cached verdict from the latest crawl); a live deep check is available as a paid x402 call.","tags":["x402","trust","security","payments","verification","agentic-commerce"],"examples":["Is https://api.example.com/x402/data safe to pay?","verify https://x402.example.org/endpoint"],"inputModes":["text/plain","application/json"],"outputModes":["application/json"]},{"id":"x402-security-incidents","name":"List live x402 security incidents","description":"Return current security incidents in the x402 agent-payment economy — receiver hijacks, bait-and-switch pricing, honeypot receivers, unverified receivers — each with an on-chain proof URL on Base. Free.","tags":["x402","security","threat-intelligence","incidents","on-chain"],"examples":["show current x402 anomalies","what changed in x402 recently?"],"inputModes":["text/plain"],"outputModes":["application/json"]}]}