the402 endpoint detail

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api.magentlab.com calc rhmp_30

https://api.magentlab.com/api/calc/rhmp_30

answers 402

de Jong 2025 Rotterdam Hip Fracture Mortality Prediction-30 Days (RHMP-30) LASSO logit from age, sex (published female coefficient, not race), albumin g/L, dementia, Katz-ADL total 0-6, ASA 4, and nursing-home residence. Returns logit and estimated_mortality_percent from the unrounded logit. Not an operative vs nonoperative order. magent does not assign ASA or Katz.

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
74 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:17:53.136Z (2h ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Frhmp_30"