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INTERCHEST CAD Score Calculator (Aerts 2017)
x402
INTERCHEST CAD Score Calculator (Aerts 2017) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Computes the INTERCHEST score (−1 to 5) for coronary artery disease probability in primary-care chest pain patients using six weighted predictors.
Price / call$0.005
Success—
StatusUnknown
How this service works
Aerts 2017 INTERCHEST: six equally weighted predictors for CAD in primary-care chest pain (age ≥55 male or ≥65 female +1; physician suspected serious +1; history of CAD +1; pain on exertion +1; pressure quality +1; pain reproducible on palpation −1). Range −1 to 5. CAD considered absent iff score <2. Published CAD probability 2.1% (95% CI 1.1–3.9) when <2 and 43.0% (35.8–50.4) when ≥2 in the 13.2% prevalence setting. Not HEART, not EDACS. magent does not examine the chest.
Output
Returns the numeric INTERCHEST score (ranging from −1 to 5), the associated CAD probability category (absent if score <2: ~2.1% CAD probability; present if score ≥2: ~43.0% CAD probability), and the individual predictor contributions, based on the Aerts 2017 validation in a 13.2% CAD prevalence primary-care setting.
Example use cases
Primary care CAD risk stratification
“Run the INTERCHEST rule for a 67-year-old female with chest pain: the doctor did suspect a serious cause, she has no prior history of CAD, the pain is not on exertion, it doesn't feel like pressure, but it does reproduce when you press on the chest wall.”
Low-risk chest pain rule-out
“I need to check if we can rule out CAD for a 50-year-old male presenting with chest pain — physician didn't suspect anything serious, no CAD history, no exertional component, no pressure quality, and the pain reproduces on palpation. What's his INTERCHEST score?”
High-risk presentation triage support
“Score this chest pain case using INTERCHEST: 72-year-old female, physician suspected a serious diagnosis, she has known coronary artery disease, pain is exertional, described as pressure-like, and is not reproducible on palpation.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/interchestWhen to prefer
Use this endpoint when you need to apply the validated Aerts 2017 INTERCHEST clinical decision rule specifically for primary-care chest pain patients. Prefer this over HEART score or EDACS when the clinical context is primary care (not emergency department), as INTERCHEST was validated in that setting. This endpoint is appropriate when the clinician has the six required predictor values available and needs a structured CAD probability estimate without requiring ECG or troponin data.
Side effects
- Missing required query parameters (age, sex, or any boolean flag) returns a 400 error
- Age outside the 18–120 range may be rejected
- Invalid sex enum value (not 'male' or 'female') returns a validation error
- Payment failure or missing x402 payment header returns a 402 error
- Network timeout or service unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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