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FLACC Pain Scale Calculator (Merkel 1997)
x402
FLACC Pain Scale Calculator (Merkel 1997) 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 Merkel 1997 FLACC pediatric pain score (0–10) by summing five caller-assigned behavioral items: face, legs, activity, cry, and consolability.
Price / call$0.005
Success—
StatusUnknown
How this service works
Merkel 1997 FLACC from five caller-assigned 0-2 items (face, legs, activity, cry, consolability) using that paper's 0/1/2 descriptors. magent sums only (max 10) and does not observe the child. No later intensity cutoffs. Not a pain diagnosis or analgesic order. Not PAINAD.
Output
Returns the summed FLACC total score as an integer between 0 and 10, computed strictly by adding the five caller-provided item scores (face + legs + activity + cry + consolability) per the Merkel 1997 original scale. Does not include pain severity interpretation bands, treatment recommendations, or diagnostic conclusions.
Example use cases
Post-op pediatric pain triage
“A nurse just assessed a toddler after surgery and noted: face 2 (clenched jaw), legs 2 (drawn up), activity 2 (arched and rigid), cry 2 (crying steadily), consolability 2 (difficult to comfort). What's the FLACC total?”
ICU behavioral pain monitoring
“I'm tracking a sedated child in the ICU — the observed scores are face 0, legs 1 (uneasy/tense), activity 1 (shifting), cry 0, consolability 0 (content). Can you compute the FLACC score?”
Emergency department pain documentation
“The ER nurse scored a 4-year-old as face 1, legs 0, activity 0, cry 1 (occasional whimpering), consolability 1. What does the Merkel FLACC calculator give as the total?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/flaccWhen to prefer
Use this endpoint when you need a fast, reproducible arithmetic FLACC sum per Merkel 1997 and already have all five behavioral item scores assigned by a clinician or observer. Prefer it over manual addition to reduce transcription errors in documentation workflows. Do not use it as a substitute for clinical observation, pain diagnosis, or analgesic decision-making; it is a calculation aid, not a clinical decision support tool. Not applicable for adult patients (use PAINAD or other adult scales) or when fewer than five FLACC items are available.
Side effects
- Missing required parameter (face, legs, activity, cry, or consolability) returns a validation error
- Value outside 0–2 integer range causes a schema validation failure
- Non-integer values (e.g. floats or strings) rejected by input schema
- All zeros input returns 0 (valid, not an error — indicates minimal behavioral distress signs)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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