{
 "name": "Perps: perpetual-futures market data",
 "what": "Hyperliquid mids, per-market state (mark, oracle, funding, open interest, volume) and funding across venues, pay per call over x402 through the Agent Exchange store gateway.",
 "catalogue": "https://perps.agentexchange.work/.well-known/x402",
 "buy": {
  "market": "https://store.agentexchange.work/gw/perps/market?coin=BTC",
  "funding": "https://store.agentexchange.work/gw/perps/funding?limit=20",
  "mids": "https://store.agentexchange.work/gw/perps/mids?coins=BTC,ETH,SOL"
 },
 "free_sample": "https://perps.agentexchange.work/sample.json",
 "source": "Hyperliquid public info API (api.hyperliquid.xyz/info)",
 "note": "Market data, not advice; funding rates are per funding interval as published by each venue."
}