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magent Coronavirus Anxiety Scale (CAS) Calculator
x402
magent Coronavirus Anxiety Scale (CAS) 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 Lee 2020 Coronavirus Anxiety Scale total score (0–20) from five symptom integers and returns a binary screen flag for clinically significant anxiety (score ≥ 9).
Price / call$0.005
Success—
StatusUnknown
How this service works
Lee 2020 Coronavirus Anxiety Scale from five caller-assigned integers 0-4 over the past two weeks (dizzy, sleep, paralyzed, appetite, nausea). magent does not interview the patient. 0 not at all, 1 rare less than a day or two, 2 several days, 3 more than 7 days, 4 nearly every day. Total 0-20. Returns screen_ge_9 (score ≥9; this paper 90% sensitivity and 85% specificity). Not a diagnosis, not GAD-7, and not extra mild/moderate bands.
Output
Returns the total Coronavirus Anxiety Scale integer score (0–20) summed from the five input items, and a boolean screen_ge_9 indicating whether the score meets or exceeds the clinically significant threshold of 9 (90% sensitivity, 85% specificity per Lee 2020). Not a diagnosis; does not produce GAD-7 results or severity bands.
Example use cases
Telehealth triage coronavirus anxiety screening
“My telehealth app collected CAS responses from a patient — dizziness 3, sleep trouble 4, feeling frozen 2, appetite loss 1, nausea 2 — can you calculate the total CAS score and tell me if they screen positive for coronavirus anxiety?”
Research batch scoring of collected survey data
“I have CAS item responses for a study participant: dizzy=1, sleep=2, paralyzed=0, appetite=1, nausea=1. Compute their Lee 2020 Coronavirus Anxiety Scale score and flag whether they're above the screening threshold of 9.”
Clinical decision support anxiety flag
“Before referring this patient, I need their CAS screener result. Their two-week ratings: felt dizzy 0, sleep problems 3, felt paralyzed 3, appetite loss 2, nausea 2. Is their coronavirus anxiety score at or above 9?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/casWhen to prefer
Use this endpoint when you need to score the specific Lee 2020 Coronavirus Anxiety Scale (CAS) and determine whether a patient crosses the ≥9 screening threshold. Prefer this over general anxiety tools (e.g. GAD-7) when the anxiety is specifically related to coronavirus exposure. The caller must already have the five item scores (0–4 each); this endpoint does not conduct the interview. It is not appropriate for general anxiety, panic disorder, or non-COVID anxiety screening.
Side effects
- Missing any of the five required query parameters returns an error
- Integer values outside 0–4 range may cause validation errors or unexpected scores
- Mistaking this for a GAD-7 or general anxiety screener — this is CAS-specific only
- Attempting to use for diagnostic purposes — endpoint returns a screen flag only, not a diagnosis
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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