Vellium & Co

Directory › Calculators and conversions › magent

magent

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. C

Go to this service →

Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
174 ms
Price
$0.005 per call
Paying buyers, last 30 days
2 (directory's own records)
Paid calls, last 30 days
3
Category
Calculators and conversions
Address
https://api.magentlab.com/api/calc/perc

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/504c7374d7fd.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].