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ALSFRS-R Calculator (Cedarbaum 1999)
x402
ALSFRS-R Calculator (Cedarbaum 1999) 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 ALS Functional Rating Scale–Revised (ALSFRS-R) total score (0–48) from 12 caller-supplied integer subscores across bulbar, fine motor, gross motor, and respiratory domains.
Price / call$0.005
Success—
StatusUnknown
How this service works
Cedarbaum 1999 ALSFRS-R: twelve caller-assigned integers 0-4 (speech, salivation, swallowing, handwriting, cutting_food, dressing_hygiene, turning_in_bed, walking, climbing_stairs, dyspnea, orthopnea, respiratory_insufficiency). One cutting_food slot for with or without gastrostomy. Sum 0-48. magent does not examine. Cedarbaum 1999 printed no total-score severity bands. Not a diagnosis, not original 10-item ALSFRS, not Karnofsky or ECOG, and not a medical device.
Output
Returns the ALSFRS-R total score (integer 0–48) summed from the 12 provided subscores across bulbar (speech, salivation, swallowing), fine motor (handwriting, cutting food, dressing/hygiene), gross motor (turning in bed, walking, climbing stairs), and respiratory (dyspnea, orthopnea, respiratory insufficiency) domains. No severity band labels are returned (Cedarbaum 1999 published none). The endpoint performs arithmetic only and does not interpret, diagnose, or examine patients.
Example use cases
ALS clinic visit functional tracking
“My ALS patient at today's clinic visit scored: speech 3, salivation 3, swallowing 3, handwriting 2, cutting food 3, dressing and hygiene 2, turning in bed 3, walking 1, climbing stairs 1, dyspnea 3, orthopnea 4, respiratory insufficiency 4 — can you calculate the Cedarbaum 1999 ALSFRS-R total for the chart?”
Research trial eligibility screening
“We need the ALSFRS-R total for a trial participant: speech 4, salivation 4, swallowing 4, handwriting 3, cutting food 4, dressing and hygiene 3, turning in bed 4, walking 3, climbing stairs 3, dyspnea 4, orthopnea 4, respiratory insufficiency 4 — please compute it.”
Longitudinal disease progression comparison
“Six months ago this ALS patient scored 42 on the ALSFRS-R; today's subscores are speech 2, salivation 3, swallowing 2, handwriting 1, cutting food 2, dressing and hygiene 1, turning in bed 2, walking 0, climbing stairs 0, dyspnea 2, orthopnea 3, respiratory insufficiency 3 — what's the new total so we can compare?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/alsfrs_rWhen to prefer
Use this endpoint when you need a programmatic, auditable sum of all 12 Cedarbaum 1999 ALSFRS-R subscores without manual arithmetic. Prefer it over manual totaling to avoid transcription errors in clinical or research workflows. Note this is the revised 12-item scale, not the original 10-item ALSFRS; do not use it for Karnofsky, ECOG, or other ALS functional scales.
Side effects
- Missing any of the 12 required query parameters returns an error
- Subscore values outside the 0–4 integer range are rejected
- Non-integer values (floats, strings) for subscores cause validation failure
- Payment failure via x402 protocol blocks the call
- Incorrect HTTP method (non-GET) returns method not allowed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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