the402 endpoint detail

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cryptyx.ai signals backtest

https://cryptyx.ai/api/signals/backtest

answers 402

Backtest any signal over up to 365 days. Returns trigger stats, per-day rows, and a 4-horizon performance block (sample size, mean/median return, hit rate, bootstrap CI, statistical significance, reliability grade). Walk-forward OOS read inlined. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.05
Network
base
Pay to
0x0cD2c9724F185a029101b4AEACf3F114415c394f
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
98 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:13:55.625Z (34d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fcryptyx.ai%2Fapi%2Fsignals%2Fbacktest"