the402 endpoint detail

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api.scanna.xyz risk-score

https://api.scanna.xyz/risk-score

payable

Returns a 6-factor A-F risk grade for one market_id from in-memory caches only: no DB, no upstream call, no write. Market data is up to ~60s stale; order-book depth covers only the top ~100 Polymarket markets, so most ids (and all Kalshi) score with placeholder spread/category factors. Unknown id is 404, but a placeholder-heavy score still returns 200 and bills.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.02
Network
base
Pay to
0xfca7D3B52D69b9b8371dd5765D3f294e46a4f59e
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
46 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:10:37.834Z (1d ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.scanna.xyz%2Frisk-score"