Card snapshot

chain-data-agent.wangzuo305.workers.dev · 2026-11-15 08:06:48 UTC · 09292352bfd908293c4f3c30451bd2c71c9482df6e8883fb2eb335c00407ea51

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": "Chain Data Agent",
  "description": "Blockchain data for AI agents, computed live from public chain state: Solana network health (epoch progress, validator count, stake concentration, skip rate) and per-validator stats (stake, commission, vote credits, block production, delinquency). Free summary tools; paid tools charge per call via x402 (USDC on Base). Not an A2A task endpoint: call the skills as MCP tools at https://chain-data-agent.wangzuo305.workers.dev/mcp or as REST endpoints (https://chain-data-agent.wangzuo305.workers.dev/openapi.json).",
  "url": "https://chain-data-agent.wangzuo305.workers.dev/mcp",
  "version": "0.1.0",
  "documentationUrl": "https://chain-data-agent.wangzuo305.workers.dev/llms.txt",
  "iconUrl": "https://chain-data-agent.wangzuo305.workers.dev/icon.svg",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "solana_validators_get_network_summary",
      "name": "Get live Solana network health: epoch progress, validator counts, stake concentration and skip rate.",
      "description": "Get live Solana network health: epoch progress, validator counts, stake concentration and skip rate. Returns the current epoch and its progress, active and delinquent validator counts, total active stake in SOL, the delinquent stake share, the Nakamoto coefficient (fewest validators holding over a third of stake), median commission, cluster block production and skip rate so far this epoch, and median and best vote credits per SOL staked in the last complete epoch. Use it as the baseline when judging a single validator. Free, no payment needed. Source: Solana mainnet-beta (public chain state via JSON-RPC), Public on-chain data.",
      "tags": [
        "solana-validators",
        "free"
      ]
    },
    {
      "id": "solana_validators_get_validator",
      "name": "Get live stats for one Solana validator by vote account or identity pubkey.",
      "description": "Get live stats for one Solana validator by vote account or identity pubkey. Pass vote (vote account pubkey) or identity (node identity pubkey). Returns stake in SOL with share and rank, commission, delinquency, how many slots its last vote is behind the cluster, vote credits for each of the last 5 epochs per SOL staked, as a percentage of the cluster median (100 = median; approximate, as it uses today's stake), and current-epoch leader slots, blocks produced and skip rate next to the cluster's. Unknown keys return 404. Costs $0.001 per call, paid via x402 in USDC on Base; the first 3 paid-tool calls per day are free for MCP clients while a shared daily allowance lasts. Without x402 support, later calls return the payment requirements as an error result. Failed calls are not charged. Source: Solana mainnet-beta (public chain state via JSON-RPC), Public on-chain data.",
      "tags": [
        "solana-validators",
        "x402"
      ]
    },
    {
      "id": "solana_validators_list_validators",
      "name": "List Solana validators ranked by stake, vote credits, skip rate or commission, with filters.",
      "description": "List Solana validators ranked by stake, vote credits, skip rate or commission, with filters. For choosing where to stake or comparing validators. sort is stake (default), credits (vote credits per SOL in the last complete epoch, as % of the cluster median), skip_rate (current epoch, lowest first; validators with no leader slots yet come last) or commission (lowest first). Filters: max_commission (percent), min_stake_sol, include_delinquent (default false). Returns up to limit rows (default 20, max 50) and the number matched. Costs $0.002 per call, paid via x402 in USDC on Base; the first 3 paid-tool calls per day are free for MCP clients while a shared daily allowance lasts. Without x402 support, later calls return the payment requirements as an error result. Failed calls are not charged. Source: Solana mainnet-beta (public chain state via JSON-RPC), Public on-chain data.",
      "tags": [
        "solana-validators",
        "x402"
      ]
    }
  ]
}

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