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magent EASI Calculator
x402
magent EASI Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Computes the Hanifin 2001 EASI (Eczema Area and Severity Index) score from caller-supplied area and sign ratings across four body regions, returning a total score out of 72.
Price / call$0.005
Success—
StatusUnknown
How this service works
Hanifin 2001 EASI from four regions. Each region: area 0-6 and erythema, edema/papulation, excoriation, and lichenification 0-3. Region score = (sum of signs) × area × adult weight (head/neck 0.1, upper extremities 0.2, trunk 0.3, lower extremities 0.4). Total max 72. Adult weights only. magent does not examine the skin. No IGA or later severity bands. Not a diagnosis.
Output
Returns the computed EASI total score (maximum 72) derived from the Hanifin 2001 formula: for each of the four regions, the sum of the four sign scores (erythema, edema/papulation, excoriation, lichenification, each 0–3) is multiplied by the area score (0–6) and the adult body-region weight (head/neck 0.1, upper extremities 0.2, trunk 0.3, lower extremities 0.4). Region scores are summed to produce the total. The API does not examine skin, make diagnoses, or apply IGA severity bands.
Example use cases
Clinical trial eczema severity tracking
“For our atopic dermatitis trial patient, compute the EASI score: head/neck area 1, erythema 1, edema 0, excoriation 1, lichenification 0; upper extremities area 2, erythema 2, edema 1, excoriation 0, lichenification 0; trunk area 3, erythema 2, edema 1, excoriation 1, lichenification 0; lower extremities area 2, erythema 1, edema 0, excoriation 1, lichenification 0.”
Telemedicine eczema assessment documentation
“I've assessed the patient remotely and assigned these scores — head/neck area 3, erythema 2, edema/papulation 2, excoriation 2, lichenification 1; upper extremities area 4, erythema 3, edema/papulation 2, excoriation 2, lichenification 2; trunk area 2, erythema 2, edema/papulation 1, excoriation 1, lichenification 0; lower extremities area 3, erythema 2, edema/papulation 1, excoriation 1, lichenification 1 — what's the EASI total?”
Automated EHR EASI score entry
“Pull the EASI score for our documentation system: all four regions assessed as head/neck area 0, erythema 0, edema 0, excoriation 0, lichenification 0; upper extremities area 1, erythema 1, edema 1, excoriation 0, lichenification 0; trunk area 1, erythema 1, edema 0, excoriation 1, lichenification 0; lower extremities area 2, erythema 1, edema 1, excoriation 1, lichenification 0.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/easiWhen to prefer
Use this endpoint when you need a fast, deterministic EASI arithmetic calculation based on caller-supplied clinical observations following the Hanifin 2001 methodology for adult patients. It is ideal for embedding in clinical documentation, telemedicine platforms, or research pipelines where the clinician has already assessed the four body regions and assigned area and sign scores. Do not use it if you need pediatric EASI weights, IGA-based severity banding, automated skin examination, or a diagnosis — those are out of scope.
Side effects
- Missing any of the 20 required query parameters returns a validation error
- Area parameter out of 0–6 integer range is rejected
- Sign parameter out of 0–3 integer range is rejected
- Non-integer (float) values for area or sign scores cause schema rejection
- Pediatric body-region weights not supported — only adult weights are applied
- Payment failure or x402 rejection blocks the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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