the402 endpoint detail

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api.magentlab.com calc gold_copd

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

answers 402

GOLD 2017 spirometric grade (Vogelmeier executive summary). Post-bronchodilator FEV1/FVC < 0.70 defines obstruction; then GOLD 1 if FEV1 % predicted >= 80, GOLD 2 if 50 to <80, GOLD 3 if 30 to <50, GOLD 4 if <30. Ratio >= 0.70 returns not_obstructed even when FEV1 is low. Not GOLD ABE (no mMRC, CAT, or exacerbations). magent does not perform spirometry. Not a medical device or 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
2026-09-06T01:17:31.656Z (2h ago)
Category
finance-crypto

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