Hyperliquid funding rates, open interest and perps market data for AI agents: extreme funding ranks, funding history, /perps and /outlook pre-trade preflight, news sentiment, twice-daily brief, and agent-readiness audit. Pay per call in USDC on Base via x402 — no API key. No charge on errors; Ed25519-signed receipts on paid 200s. MCP: https://cryptofeed402.site/mcp
| verified | Not yet: listing not claimed with domain proof. |
| trusted | Not yet: needs Live-Tested. |
/api/v1/call/x402.cryptofeed402GET https://cryptofeed402.site/perps/BTC[](https://agentropolis.io/listing/x402.cryptofeed402)