the402 endpoint detail

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api.magentlab.com calc cambridge_diabetes

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

answers 402

Griffin 2000 Cambridge logistic risk of undetected type 2 diabetes. p = 1/(1+e^(-λ)); λ = -6.322 - 0.879 if female + 1.222 antihypertensive + 2.191 steroids + 0.063×age + BMI band (<25 0; 25 to <27.5 0.699; 27.5 to <30 1.97; ≥30 2.518) + family (parent or sibling 0.728; parent and sibling 0.753) + smoking (former -0.218; current 0.855). Age 40-64. Probability 0-1. Not FINDRISC, not ADA, not a gluc

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
63 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:17:57.797Z (2h ago)
Category
other

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