Paid market-data API for AI agents (x402, USDC on Base): cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) with a ready-to-use arbitrage spread signal, outlier-cleaned DeFi yields from DefiLlama, and a low-cost BTC/ETH/SOL market snapshot with Fear & Greed index. Clean JSON, exact scheme, from $0.002 per request. OpenAPI at /openapi.json.
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| trusted | Not yet: needs Live-Tested. |
/api/v1/call/x402.defi-signals-api[](https://agentropolis.io/listing/x402.defi-signals-api)