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ACR/EULAR 2010 RA Classification Calculator (Aletaha Table 3)
x402
ACR/EULAR 2010 RA Classification Calculator (Aletaha Table 3) 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 ACR/EULAR 2010 rheumatoid arthritis classification score and returns a classified true/false result based on joint involvement, serology, acute-phase reactants, and symptom duration.
Price / call$0.005
Success—
StatusUnknown
How this service works
ACR/EULAR 2010 RA classification (Aletaha Table 3). Required: clinical_synovitis true. Score: joint involvement 0/1/2/3/5 + serology 0/2/3 + abnormal CRP or ESR 1 + duration ≥6 weeks 1; max 10. classified false if another disease better explains synovitis; else true if typical RA erosions or score ≥6. Not a diagnosis. Not 1987 ACR RA. Not SDAI. magent does not examine joints or titer RF/ACPA.
Output
Returns the total ACR/EULAR 2010 RA classification score (0–10) broken down by component (joint involvement 0/1/2/3/5, serology 0/2/3, acute-phase reactants 0/1, duration 0/1), and a boolean 'classified' field indicating whether the patient meets the RA classification threshold (score ≥6, or presence of typical erosive RA disease), subject to the exclusion that no other disease better explains the synovitis.
Example use cases
Rheumatology clinic RA triage
“I have a patient with confirmed clinical synovitis, involvement of one to three small joints, low positive ACPA, normal CRP and ESR, symptoms for 8 weeks, no alternative diagnosis, and no erosive disease — can you run the 2010 ACR/EULAR RA classification score and tell me if they're classified as RA?”
EHR automation for new arthritis consults
“For each new inflammatory arthritis referral in my queue, run the Aletaha 2010 RA classification: this patient has synovitis confirmed, greater than ten joints affected including small joints, high positive RF, abnormal ESR, symptoms for 3 months, no better alternative diagnosis, and no erosive findings — what's the total score and are they classified as RA?”
Research cohort eligibility screening
“I'm building a cohort of patients who meet the 2010 ACR/EULAR RA classification criteria — check this subject: clinical synovitis present, two to ten large joints involved, serology negative, CRP normal, duration less than 6 weeks, no alternative diagnosis, no erosive disease — do they qualify?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/acr_eular_raWhen to prefer
Use this endpoint when you need a structured, automated implementation of the ACR/EULAR 2010 RA classification algorithm (Aletaha Table 3) and the caller has already assigned clinical inputs (joint category, serology tier, APR status, duration). Prefer this over manual scoring or GPT-based estimation when auditability and exact score reproducibility are required. Do NOT use for the 1987 ACR RA criteria, SDAI, DAS28, or any endpoint requiring the system to physically examine joints or run lab assays — those inputs must come from the clinician or EHR.
Side effects
- clinical_synovitis set to false — invalid input, endpoint requires true as entry criterion
- Missing required query parameters (joint_involvement, serology, abnormal_apr, duration_ge_6_weeks) — returns validation error
- Invalid enum value for joint_involvement or serology — returns schema error
- Misclassification risk if caller supplies incorrect joint counts or serology tiers, as magent does not independently examine joints or titer RF/ACPA
- Network or payment failure (x402 protocol) — call not executed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
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