Evidence row 671

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://aiagentscity.com/api/x402/agent-watch/census"
    ],
    [
      "x402",
      "https://aiagentscity.com/api/x402/agent-watch/probe"
    ],
    [
      "x402",
      "https://aiagentscity.com/api/x402/trustscan/npm"
    ],
    [
      "x402",
      "https://aiagentscity.com/v1/billing/x402"
    ]
  ],
  "name": "aiagentscity.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "aiagentscity.com",
    "endpoints": [
      {
        "description": "Agent-economy census snapshot: how many known agent/MCP endpoints are alive, dead or unknown right now.",
        "method": "GET",
        "parameters": [],
        "pricing": {
          "amount": "0.1",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Agent Watch",
        "tags": [
          "mcp",
          "census",
          "agent-economy",
          "data"
        ],
        "url": "https://aiagentscity.com/api/x402/agent-watch/census"
      },
      {
        "description": "Probe an MCP/agent endpoint: liveness, latency, tool count, auth metadata, price-challenge detection. Real MCP initialize handshake, not a ping.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "https://example.com/mcp",
            "group": "body",
            "name": "url",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Agent Watch",
        "tags": [
          "mcp",
          "monitoring",
          "liveness",
          "agent-economy"
        ],
        "url": "https://aiagentscity.com/api/x402/agent-watch/probe"
      },
      {
        "description": "Trust check an npm package before an agent installs it: typosquat screen, deprecation, package age, maintainers, weekly downloads, source link.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "express",
            "group": "body",
            "name": "package",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.1",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "4",
          "l30DaysUniquePayers": "4"
        },
        "serviceName": "TrustScan",
        "tags": [
          "security",
          "npm",
          "supply-chain",
          "agent-economy"
        ],
        "url": "https://aiagentscity.com/api/x402/trustscan/npm"
      },
      {
        "description": "Claim an AgentLedger workspace. Pays once; returns a workspace_id and a workspace_key (shown once) bound to the paying wallet.",
        "method": "POST",
        "parameters": [],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "AgentLedger",
        "tags": [
          "agent-economy",
          "ledger",
          "billing",
          "workspace"
        ],
        "url": "https://aiagentscity.com/v1/billing/x402"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "aiagentscity-com",
    "integrationType": "",
    "isNew": false,
    "name": "aiagentscity.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.055",
      "currency": "USDC",
      "maxAmount": "0.1",
      "minAmount": "0.01"
    },
    "provider": "aiagentscity.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "mcp",
      "census",
      "agent-economy",
      "data",
      "monitoring",
      "liveness",
      "security",
      "npm",
      "supply-chain",
      "ledger",
      "billing",
      "workspace"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"43134e9dd2b3e98a57ee90f9f7b329379f5de0d2b78eae5e99691179ae99b018","id":671,"kind":"listing","method":"baseline/1","observed_us":1793025233104394,"prev":null,"subject":"agentic_market:aiagentscity-com","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.