the402 endpoint detail

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api.magentlab.com calc imdc

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

answers 402

Heng 2009 IMDC: KPS <80, diagnosis-to-treatment <1 year, hemoglobin <LLN, corrected calcium >ULN, neutrophils >ULN, platelets >ULN; 1 point each, max 6. Favorable 0, intermediate 1–2, poor ≥3. Deterministic published score with citation; not an RCC diagnosis or treatment recommendation. magent does not assign KPS or compare Hb, Ca, ANC, or platelets to institutional LLN/ULN.

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
100 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:17:12.463Z (2h ago)
Category
other

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