Card snapshot

This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.

{
  "name": "merchant-check-mcp",
  "displayName": "x402 Merchant Check",
  "description": "Pre-payment merchant trust checks for autonomous agents making x402 payments, backed by real on-chain and x402 settlement history on Base and Solana.",
  "url": "https://mcp.gradientdecisions.com/mcp",
  "protocol": "mcp",
  "transport": "streamable-http",
  "protocolVersion": "2025-06-18",
  "auth": {
    "type": "x402",
    "description": "No accounts or API keys \u2014 every call is authenticated by an x402 payment, per call. See auth.md.",
    "authDoc": "https://gradientdecisions.com/auth.md"
  },
  "tools": [
    {
      "name": "check_merchant",
      "description": "Machine-readable trust/pricing assessment for a merchant wallet, before paying it via x402.",
      "price": "$0.01 USDC per call, paid via x402 on Base mainnet (eip155:8453)",
      "sampleInput": {
        "merchant_wallet_address": "0xffc458db291b4abce020fe3de4f91f2770e537b1",
        "price": 0.05
      },
      "sampleOutput": {
        "merchant": "0xffc458db291b4abce020fe3de4f91f2770e537b1",
        "network": "eip155:8453",
        "recommendation": "PROCEED",
        "trust_tier": "TRUSTED",
        "confidence": "HIGH",
        "data_sufficiency": "SUFFICIENT",
        "signals": {
          "merchant_age_days": 184,
          "unique_payers": 51,
          "total_tx_count": 89635,
          "payer_concentration": "LOW"
        },
        "risk_flags": [],
        "reasons": [
          "Consistent signals across wallet age, payer diversity, and settlement history"
        ],
        "price_fairness": "fair",
        "pricing": {
          "advertised_prices_atomic": [
            50000
          ],
          "fairness_vs_category": "fair"
        },
        "category": "data_api",
        "chain": "base",
        "platforms": [
          {
            "url": "https://api.example.com/v1/weather",
            "serviceName": "Weather API"
          }
        ]
      }
    }
  ],
  "links": {
    "apiCatalog": "https://gradientdecisions.com/.well-known/api-catalog",
    "auth": "https://gradientdecisions.com/auth.md",
    "methodology": "https://gradientdecisions.com/methodology",
    "privacy": "https://gradientdecisions.com/privacy",
    "stats": "https://gradientdecisions.com"
  }
}