the402 endpoint detail

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api.magentlab.com calc pascal

https://api.magentlab.com/api/calc/pascal

answers 402

PASCAL (PFO-Associated Stroke Causal Likelihood; Kent 2021 JAMA Table 1) from a caller-assigned RoPE total (0-10; magent does not recompute RoPE) plus large-shunt and atrial-septal-aneurysm flags. high_rope is RoPE ≥7 (not >7). high_risk_pfo is large shunt and/or ASA. probable if both, possible if exactly one, unlikely if neither. Not a closure order, not RoPE, not ESUS. Trial ages 18-60 are a lim

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x836Be278f1739fB4308091cD1852F7971Bc19Ee2
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
84 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:17:27.146Z (2h ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Fpascal"