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magent MDI (Major Depression Inventory) Score Calculator
x402
magent MDI (Major Depression Inventory) Score Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Computes the Bech 2001 Major Depression Inventory (MDI) total score (0–50) from 12 caller-assigned integer items, applying the published psychomotor-max and appetite-max rules.
Price / call$0.005
Success—
StatusUnknown
How this service works
Bech 2001 MDI: 12 caller-assigned integers 0-5 (at no time to all the time, last 2 weeks) covering 10 ICD-10/DSM-IV depression symptoms. Psychomotor (restless vs subdued) and appetite (reduced vs increased) each add the max of the pair, not the sum. Total 0-50. This paper's optimal total-score cutoff is 26. magent does not interview, apply Olsen 2003 HAM-D mapped bands, DSM-IV/ICD-10 algorithms, PHQ-9, QIDS, or Hamilton depression. Not a diagnosis.
Output
Returns the MDI total score (integer 0–50) computed per Bech 2001 rules: items 1–7 and 9 are summed directly; the psychomotor item contributes max(restless, subdued); the appetite item contributes max(reduced_appetite, increased_appetite). The paper's optimal cutoff for caseness is 26.
Example use cases
Scoring a completed MDI questionnaire
“A patient just filled out the MDI and gave these scores for the past 2 weeks: low spirits 4, lost interest 3, lack of energy 4, low self-confidence 2, guilt 2, life not worth living 1, concentration 3, restless 1, subdued 3, sleep 4, reduced appetite 2, increased appetite 0. What is their MDI total?”
Checking if score exceeds clinical cutoff
“Can you compute the MDI total for these symptom ratings — low spirits 5, lost interest 4, lack of energy 5, low self-confidence 3, guilt 3, life not worth living 2, concentration 4, restless 0, subdued 5, sleep 4, reduced appetite 3, increased appetite 0 — and tell me whether it clears the Bech 2001 cutoff of 26?”
Longitudinal depression score tracking
“My app collected MDI ratings this week: low spirits 2, lost interest 1, lack of energy 2, low self-confidence 1, guilt 0, life not worth living 0, concentration 2, restless 3, subdued 1, sleep 2, reduced appetite 0, increased appetite 1. Please calculate the MDI score so I can log it alongside last month's result.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/mdiWhen to prefer
Use this endpoint when you need a programmatically correct MDI total score that faithfully applies the Bech 2001 psychomotor-max and appetite-max rules without any interview logic, band mapping, PHQ-9, QIDS, or HAM-D conversion. Prefer it over manual calculation to avoid the common error of summing both psychomotor sub-items or both appetite sub-items instead of taking the maximum of each pair.
Side effects
- Missing any of the 12 required query parameters returns a validation error
- Any item value outside the integer range 0–5 is rejected
- Non-integer (float or string) values for item parameters cause a parsing error
- Network or gateway errors at the provider return HTTP 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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