Web Evidence

{
  "name": "Web Evidence",
  "description": "Verifies factual claims against current web evidence and returns citations, provenance, snapshots, and hashes.",
  "supportedInterfaces": [
    {
      "url": "https://api.aisoup.net/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    }
  ],
  "provider": {
    "organization": "Agentic Services",
    "url": "https://aisoup.net"
  },
  "version": "0.3.0",
  "documentationUrl": "https://api.aisoup.net/",
  "capabilities": {},
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "verify-factual-claim",
      "name": "Verify a factual claim",
      "description": "Researches a claim on the current web and returns a structured verdict with complete source provenance.",
      "tags": [
        "fact-checking",
        "web-research",
        "citations",
        "evidence"
      ],
      "examples": [
        "Verify that the Base mainnet chain ID is 8453."
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json",
        "text/plain"
      ]
    }
  ],
  "extensions": [
    {
      "uri": "https://www.x402.org/",
      "description": "Calls cost $0.05 and accept x402 or MPP payment in USDC on Base.",
      "required": false,
      "params": {
        "discoveryUrl": "https://api.aisoup.net/.well-known/x402",
        "priceUsd": "0.05",
        "network": "eip155:8453",
        "asset": "USDC"
      }
    }
  ]
}