47620 Multichain Data API

{
  "protocolVersion": "1.0.0",
  "name": "47620 Multichain Data API",
  "description": "Pay-per-call blockchain data and pre-payment safety/risk checks for autonomous agents, across Solana, Base and Polygon. One MCP server, neutral tools with an explicit `chain`. Settles over x402 (USDC on any of the three chains) with no accounts or API keys.",
  "author": "47620",
  "wellKnownURI": "https://47620.xyz/.well-known/agent-card.json",
  "url": "https://47620.xyz/",
  "version": "1.0.0",
  "provider": {
    "organization": "47620",
    "url": "https://47620.xyz/"
  },
  "documentationUrl": null,
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {
    "x402": {
      "type": "x402",
      "description": "Pay-per-call over x402: the endpoint returns HTTP 402 with a PAYMENT-REQUIRED header; pay in USDC on Solana, Base or Polygon (facilitated) and resend with the PAYMENT-SIGNATURE header."
    }
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://a2a-registry.org/extensions/registry/v1",
        "params": {
          "payment": {
            "model": "paid",
            "rails": [
              {
                "type": "stablecoin",
                "caip2": "eip155:8453",
                "token": "USDC",
                "network": "base",
                "feeModel": "low",
                "protocol": "x402",
                "settlementTime": "fast",
                "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
              },
              {
                "type": "stablecoin",
                "caip2": "eip155:137",
                "token": "USDC",
                "network": "polygon",
                "feeModel": "low",
                "protocol": "x402",
                "settlementTime": "fast",
                "contractAddress": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359"
              },
              {
                "type": "stablecoin",
                "token": "USDC",
                "network": "solana",
                "feeModel": "low",
                "protocol": "x402",
                "settlementTime": "instant",
                "contractAddress": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
              }
            ],
            "direction": "inbound",
            "protocols": [
              "x402"
            ]
          }
        },
        "required": false
      }
    ]
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "solana-risk-check",
      "name": "Solana pre-payment risk check",
      "description": "Before sending SOL/USDC to any address: returns account type, balance, activity and a 0-100 risk score with a proceed/review/do-not-pay recommendation. The destination gate for an agent spend policy.",
      "tags": [
        "solana",
        "risk",
        "safety",
        "payments"
      ],
      "examples": [
        "is 8iZbjedTiMYVYGE9PZBHPm7k2KeXRqWAuCpSAxHm7j68 safe to pay?"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "solana-data",
      "name": "Solana blockchain data",
      "description": "Live Solana data: network health, SOL/USD, token market data, account balances, transactions, trending DEX pairs, token safety and whale concentration.",
      "tags": [
        "solana",
        "blockchain",
        "data",
        "market"
      ],
      "examples": [
        "current SOL/USD and network health",
        "safety of token EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "x402-seller-audit",
      "name": "x402 seller audit (Base + Polygon)",
      "description": "Pre-integration audit of an x402 SELLER: machine-readable discovery manifest, live 402 challenge coherence (amounts, payTo per chain, zero-amount traps), on-chain settlement evidence and index health. Returns a 0-100 integration-safety score with safe-to-integrate / review-before-paying / do-not-integrate verdict. Use BEFORE routing funds to an unknown seller.",
      "tags": [
        "x402",
        "trust",
        "safety",
        "audit",
        "base",
        "polygon",
        "payments"
      ],
      "examples": [
        "is https://some-seller.xyz safe to integrate and pay?"
      ],
      "inputModes": [],
      "outputModes": []
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "b1bdad3f-c432-45ef-a10d-32ef1a91dca5",
  "category": "trust-safety",
  "category_secondary": "payments"
}