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api.magentlab.com calc 6mwd
https://api.magentlab.com/api/calc/6mwd
answers 402
Enright 1998 predicted six-minute walk distance (meters) from sex, age 40-80, height_cm, and weight_kg (Table 3 height/weight: male 7.57H−5.02age−1.76W−309; female 2.11H−2.29W−5.78age+667). Reports predicted_m and lln_m (minus 153 m men or 139 m women). Optional walked_m (0-1500) yields percent_predicted. Not a timed walk, BMI-equation path, or 80%/400 m class. Not a medical device.
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
- 56 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:17:55.795Z (2h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2F6mwd"