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CASPAR Criteria Calculator for Psoriatic Arthritis
x402
CASPAR Criteria Calculator for Psoriatic Arthritis 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 Taylor 2006 CASPAR score for psoriatic arthritis classification and returns whether the criteria are met (score ≥ 3).
Price / call$0.005
Success—
StatusUnknown
How this service works
Taylor 2006 CASPAR classification criteria for psoriatic arthritis. Required: inflammatory_articular_disease true (joint, spine, or enthesis). Score: current psoriasis 2; personal history 1 only if current is false; family history 1 only if current and personal are false; nail dystrophy 1; RF-negative 1; dactylitis (current or history) 1; juxtaarticular new bone 1. Classified iff score ≥3 (max 8). Not a diagnosis. Not Moll and Wright. magent does not examine skin or read films.
Output
Returns the total CASPAR score (integer, 0–8), whether the patient meets classification (score ≥ 3 with inflammatory articular disease confirmed), and optionally per-criterion point contributions. Does not provide a clinical diagnosis.
Example use cases
Rheumatology clinic PsA classification
“I have a patient with inflammatory joint disease: current psoriasis is true, nail dystrophy is present, RF is negative, no dactylitis, and no juxtaarticular new bone. Can you run the CASPAR criteria and tell me if they classify for psoriatic arthritis?”
Research cohort eligibility screening
“For a clinical trial, I need to classify whether patients meet CASPAR criteria. This subject has inflammatory articular disease, no current psoriasis but a personal history of psoriasis, RF is negative, dactylitis history is positive, nail dystrophy is true, and no juxtaarticular new bone — please calculate their CASPAR score.”
EHR-integrated decision support check
“Check CASPAR classification for a patient: inflammatory articular disease confirmed, current psoriasis false, personal history of psoriasis false, family history of psoriasis true, nail dystrophy false, rheumatoid factor negative true, dactylitis current or history false, juxtaarticular new bone false.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/casparWhen to prefer
Use this endpoint when you need a programmatic, auditable computation of the Taylor 2006 CASPAR score for psoriatic arthritis classification in a rheumatology or clinical research workflow. Prefer it over manual scoring tables when integrating into EHR pipelines, research eligibility screens, or agentic clinical decision support. Note: this endpoint computes criteria only — it does not examine patients, read imaging, or provide diagnoses. It should not be confused with the older Moll and Wright criteria.
Side effects
- Missing required inflammatory_articular_disease parameter returns validation error
- Invalid boolean values for any parameter return schema error
- inflammatory_articular_disease false short-circuits classification regardless of score
- Score may be misleading if caller-assigned clinical flags are inaccurate — garbage-in, garbage-out
- Network or payment authorization failure returns 402 or connectivity error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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