the402 endpoint detail

← All endpoints

api.magentlab.com calc egfr_ckd_epi

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

answers 402

CKD-EPI 2021 creatinine eGFR (race-free). Use when an agent must not guess kidney function from a language model. Deterministic published formula with citation.

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
2026-09-06T01:17:17.006Z (2h ago)
Category
ai-inference

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