the402 endpoint detail

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api.magentlab.com calc rockall

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

answers 402

Rockall 1996 complete (post-endoscopy) score after acute upper GI haemorrhage: age <60 0, 60-79 1, >=80 2; shock SBP<100 2 (hypotension; tachycardia not added), else HR>=100 1, else 0; comorbidity none 0, cardiac 2, renal/liver/metastatic 3; diagnosis none or mallory_weiss 0, other 1, malignancy 2; stigmata none_or_spot 0, blood_clot_vessel 2. Max 11. Not pre-endoscopy-only Rockall, AIMS65, or GBS

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
76 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:17:15.729Z (2h ago)
Category
other

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