the402 endpoint detail

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api.solenrich.com perps-basis-signal invoke

https://api.solenrich.com/entrypoints/perps-basis-signal/invoke

answers 402

Computes perp mark vs spot price across venues and surfaces actually-earnable yield (funding APR on Hyperliquid + dYdX, not viable on pool perps Jupiter + Adrena). Returns per-venue trade economics, opportunities above threshold, and best trade. Threshold defaults to 5% APR.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
15000 atomic
Network
solana
Pay to
66Qvhr1xnwqbCT36KfHfZF1JpoWdmCQ3uFYTN335CGXe
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
158 ms
Payment options
2 usable of 2
Last checked
2026-09-06T01:10:56.808Z (36d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.solenrich.com%2Fentrypoints%2Fperps-basis-signal%2Finvoke"