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api.magentlab.com calc perc
https://api.magentlab.com/api/calc/perc
answers 402
Eight-factor pulmonary embolism rule-out criteria (Kline 2004). PERC-negative only when all eight hold: age <50, pulse <100, SaO2 >94%, and no unilateral leg swelling, hemoptysis, recent trauma or surgery, prior PE or DVT, or hormone use. Caller must already have low pretest probability as in the paper. Not a diagnosis, not a D-dimer protocol, and not altitude-adjusted PERC.
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
- 110 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:17:14.891Z (2h ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Fperc"