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Kawasaki Disease Classic/Complete Criteria Calculator (McCrindle 2017)
x402
Kawasaki Disease Classic/Complete Criteria Calculator (McCrindle 2017) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Evaluates AHA 2017 criteria for classic/complete Kawasaki disease based on fever duration and five principal clinical features
Price / call$0.005
Success—
StatusUnknown
How this service works
AHA 2017 classic/complete Kawasaki disease (McCrindle). Complete when fever_days >= 4 and at least 4 of 5 principal features are true (oral mucosal changes, bilateral conjunctival injection, rash, extremity changes, cervical lymphadenopathy). Does not implement the incomplete-KD lab/echo algorithm or the 3-day clinician exception. magent does not examine the patient or read an echocardiogram. Not a medical device and not a diagnosis.
Output
Returns whether the classic/complete Kawasaki disease criteria are met under AHA 2017 McCrindle guidelines, based on fever duration (>=4 or >=5 days) and the count of the five principal clinical features (oral mucosal changes, bilateral conjunctival injection, rash, extremity changes, cervical lymphadenopathy). Does not implement the incomplete KD lab/echo algorithm or the 3-day clinician exception. Not a medical device or diagnosis.
Example use cases
Emergency pediatric KD triage
“I have a child with 6 days of fever, strawberry tongue, bilateral conjunctival injection, a maculopapular rash, and hand edema but no cervical lymphadenopathy — run the AHA 2017 McCrindle complete Kawasaki disease criteria for me.”
Borderline 4-day fever case
“Child has exactly 4 days of fever, plus oral mucosal changes, rash, conjunctival injection, and extremity changes — no lymphadenopathy. Does this still qualify for classic complete Kawasaki disease under McCrindle 2017?”
Teaching case feature count
“Walk through the classic KD criteria for a patient with 7 fever days, positive conjunctival injection, positive cervical lymphadenopathy, no rash, no oral changes, and no extremity changes — do they meet complete criteria?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/kawasakiWhen to prefer
Use this endpoint when you need a fast, rule-based evaluation of the AHA 2017 classic/complete Kawasaki disease criteria (McCrindle) for a patient with known clinical findings. Prefer this over general LLM reasoning for auditability and reproducibility. Do not use for incomplete KD cases requiring echocardiogram or lab-based supplemental criteria, or when the 3-day clinician exception applies.
Side effects
- Missing required query parameters (fever_days or any of the 5 boolean features) returns a 400-level error
- fever_days outside integer range 1–30 may be rejected or produce undefined behavior
- Incomplete KD cases (fewer than 4 features) are not further processed by the lab/echo algorithm — caller must handle separately
- Boolean fields passed as strings instead of true booleans may cause parsing errors
- Payment not fulfilled returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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