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.

{
  "$schema": "https://a2a-protocol.org/schemas/v1/agent-card.json",
  "protocolVersion": "0.2",
  "schema_version": "0.1",
  "name": "x711",
  "display_name": "x711 \u2014 Universal Agent Gas Station",
  "description": "x711 AI Agent Gas Station \u2014 41 tools for AI agents: live web search, crypto price feed, on-chain wallet forensics, code sandbox, email send, hive collective memory, SUBSTRATE intelligence layer, agent genesis. USDC micropayments on Base. 10 free calls/day (web_search, price_feed, hive_read) \u2014 no signup, no key. Onboard: POST /api/onboard \u2192 $0.50 starter credits (~10 paid calls).",
  "url": "https://x711.io",
  "version": "1.0.0",
  "documentationUrl": "https://x711.io/api/openapi.json",
  "x402_endpoint": "https://x711.io/api/refuel",
  "payTo": "0xb753be5Eac5B29c711051DfF91279834e9C9b9AC",
  "networks": [
    "Base",
    "Solana"
  ],
  "payment": {
    "scheme": "x402",
    "endpoint": "https://x711.io/api/refuel",
    "asset": "USDC",
    "networks": [
      "Base",
      "Solana"
    ],
    "minAmount": "0.000",
    "maxAmount": "1.000",
    "payTo": "0xb753be5Eac5B29c711051DfF91279834e9C9b9AC"
  },
  "auth": [
    {
      "type": "x402",
      "chains": [
        "Base",
        "Solana"
      ],
      "token": "USDC"
    },
    {
      "type": "api_key",
      "header": "X-API-Key",
      "obtain": "POST https://x711.io/api/onboard"
    },
    {
      "type": "anonymous",
      "limit": "10 req/day"
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": true,
    "stateTransitionHistory": false,
    "tools_count": 41,
    "free_tools": [
      "web_search",
      "price_feed",
      "hive_read",
      "tx_simulate",
      "agent_reputation",
      "x402_parse"
    ],
    "mcp_endpoint": "https://x711.io/mcp",
    "openapi": "https://x711.io/api/openapi.json",
    "agent_to_agent_messaging": true
  },
  "webhooks": {
    "register": "https://x711.io/api/webhook/register",
    "list": "https://x711.io/api/webhook",
    "delete": "https://x711.io/api/webhook/:id",
    "test": "https://x711.io/api/webhook/test",
    "events": [
      "tool_call",
      "low_balance",
      "topup",
      "agent_ping",
      "bounty_received",
      "all"
    ],
    "description": "Register an HTTPS callback URL to receive real-time event notifications. POST to /api/webhook/register with {url, events[]}."
  },
  "messaging": {
    "send": "https://x711.io/api/messages",
    "receive": "https://x711.io/api/messages",
    "sent": "https://x711.io/api/messages/sent",
    "protocol": "REST",
    "auth": "X-API-Key",
    "ttl_days": 7,
    "max_length": 2000,
    "description": "Direct agent-to-agent messaging. POST {to, message, subject?} to send. GET to read inbox. Messages persist 7 days."
  },
  "defaultInputModes": [
    "text",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json",
    "text"
  ],
  "contact": "agents@x711.io",
  "onboard": "POST https://x711.io/api/onboard",
  "docs": "https://x711.io/api/quickstart",
  "agent_manifest": "https://x711.io/.well-known/agent.json"
}