Web Evidence

{
  "protocolVersion": "1.0",
  "name": "Web Evidence",
  "description": "Verifies factual claims against current web evidence and returns citations, provenance, snapshots, and hashes.",
  "author": "Agentic Services",
  "wellKnownURI": "https://api.aisoup.net/.well-known/agent-card.json",
  "url": "https://api.aisoup.net/web-evidence/a2a",
  "version": "0.3.1",
  "provider": {
    "organization": "Dream Workshop LLC",
    "url": "https://aisoup.net/"
  },
  "documentationUrl": "https://api.aisoup.net/web-evidence/",
  "iconUrl": "https://api.aisoup.net/favicon.ico",
  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {},
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://www.x402.org/",
        "params": {
          "asset": "USDC",
          "network": "eip155:8453",
          "priceUsd": "0.05",
          "discoveryUrl": "https://api.aisoup.net/web-evidence/.well-known/x402"
        },
        "required": true,
        "description": "Pay $0.05 in USDC on Base before calling this agent."
      },
      {
        "uri": "https://paymentauth.org/",
        "params": {
          "methods": [
            "evm",
            "stripe"
          ],
          "endpoint": "https://api.aisoup.net/web-evidence/a2a"
        },
        "required": true,
        "description": "Complete an MPP charge using Base USDC at $0.05 or MPP Stripe at $0.50."
      },
      {
        "uri": "https://a2a-registry.org/extensions/registry/v1",
        "params": {
          "payment": {
            "model": "paid",
            "rails": [
              {
                "type": "stablecoin",
                "caip2": "eip155:8453",
                "token": "USDC",
                "network": "base",
                "protocol": "x402",
                "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
              },
              {
                "type": "fiat",
                "token": "USD",
                "network": "stripe",
                "protocol": "stripe"
              }
            ],
            "direction": "inbound",
            "protocols": [
              "x402",
              "stripe"
            ]
          }
        },
        "required": false,
        "description": "Registry metadata and payment 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"
      ]
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "ba031c96-bb74-45fd-9cef-0bf330c30788",
  "category": "trust-safety",
  "category_secondary": null
}