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.

{
  "protocolVersion": "0.3.0",
  "name": "Returns holder count and cumulative transfer count for any ERC-20/ERC-721 token via public",
  "description": "Returns holder count and cumulative transfer count for any ERC-20/ERC-721 token via public Blockscout, plus circulating market cap, total supply and exchange rate on the token detail path. Feeds autonomous token-screening agents and agent-to-agent due-diligence flows that gauge holder distribution, concentration risk and token adoption before trading. First 3 calls FREE per wallet \u2014 send header X-WALLET: 0x<addr>. No charge on upstream failure.",
  "url": "https://blockscout-token-holder-counters.hergertsynthora.com/service",
  "preferredTransport": "HTTP+JSON",
  "additionalInterfaces": [
    {
      "url": "https://blockscout-token-holder-counters.hergertsynthora.com/service",
      "transport": "HTTP+JSON"
    },
    {
      "url": "https://blockscout-token-holder-counters.hergertsynthora.com/a2a",
      "transport": "JSONRPC"
    }
  ],
  "version": "1.0.0",
  "provider": {
    "organization": "HERGERT SYNTHORA",
    "url": "https://hergertsynthora.com"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "blockscout_token_holder_counters",
      "name": "blockscout token holder counters",
      "description": "Returns holder count and cumulative transfer count for any ERC-20/ERC-721 token via public Blockscout, plus circulating market cap, total supply and exchange rate on the token detail path. Feeds autonomous token-screening agents and agent-to-agent due-diligence flows that gauge holder distribution, concentration risk and token adoption before trading. First 3 calls FREE per wallet \u2014 send header X-WALLET: 0x<addr>. No charge on upstream failure.",
      "tags": [
        "blockscout",
        "token",
        "holder",
        "counters",
        "x402",
        "synthora",
        "m2m",
        "a2a"
      ],
      "examples": [
        "{}"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "inputSchema": {
        "type": "object",
        "properties": {
          "payload": {
            "type": "string",
            "description": "payload"
          },
          "keys": {
            "type": "string",
            "description": "keys"
          },
          "caller": {
            "type": "string",
            "description": "caller"
          },
          "provides": {
            "type": "string",
            "description": "provides"
          }
        },
        "required": [
          "payload",
          "keys",
          "caller",
          "provides"
        ]
      }
    }
  ],
  "securitySchemes": {
    "x402": {
      "type": "http",
      "scheme": "x402",
      "description": "HTTP 402 micropayment. 1000 atomic USDC on eip155:8453."
    }
  },
  "security": [
    {
      "x402": []
    }
  ],
  "x402": {
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
    "resource": "https://blockscout-token-holder-counters.hergertsynthora.com/service"
  },
  "mcp": {
    "endpoint": "https://blockscout-token-holder-counters.hergertsynthora.com/mcp",
    "transport": "http-jsonrpc"
  }
}