the402 endpoint detail

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api.magentlab.com calc easi

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

answers 402

Hanifin 2001 EASI from four regions. Each region: area 0-6 and erythema, edema/papulation, excoriation, and lichenification 0-3. Region score = (sum of signs) × area × adult weight (head/neck 0.1, upper extremities 0.2, trunk 0.3, lower extremities 0.4). Total max 72. Adult weights only. magent does not examine the skin. No IGA or later severity bands. Not a diagnosis.

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
71 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:17:53.789Z (2h ago)
Category
other

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