PulseFeed x402 Trust Oracle

{
  "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 \u2014 liveness, anomaly scan (receiver-address changes between observations, catalog price vs. challenge price, invalid receivers, asset/network mismatch), on-chain receiver verification on Base, and an open 0-100 Trust Score. Built on a continuous independent audit of the x402 ecosystem (11721 endpoints probed of 22842 tracked, 19% of probed 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 \u2014 receiver hijacks, bait-and-switch pricing, honeypot receivers, unverified receivers \u2014 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"
      ]
    }
  ]
}