# Montgomery-Åsberg depression rating scale MADRS Status: LIVE Price: $0.005 USDC `GET /api/calc/madrs` HTML: https://magentlab.com/docs/madrs Markdown: https://magentlab.com/docs/madrs.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Sum ten caller-assigned Montgomery 1979 MADRS items (each integer 0-6) and return the published 0-60 total. Does not apply later total-score severity bands. ## When to use When an agent already has Montgomery 1979 integers 0-6 for the ten items and needs the published total. magent does not interview the patient, diagnose depression, score Hamilton 1960, score PHQ-9, or apply later 0-6/7-19/20-34/35-60 cutoffs. ## When not to use - Not a medical device and not a depression diagnosis or treatment order. - Each of the ten items is a caller-assigned integer 0-6. magent does not interview the patient. - This is Montgomery 1979 MADRS only (ten items; max 60). magent does not score Hamilton 1960 or PHQ-9. - Montgomery 1979 published no total-score severity bands. This tool returns score and max_score only. It does not apply later 0-6/7-19/20-34/35-60 website or review cutoffs. ## Formula ``` MADRS = apparent_sadness + reported_sadness + inner_tension + reduced_sleep + reduced_appetite + concentration_difficulties + lassitude + inability_to_feel + pessimistic_thoughts + suicidal_thoughts; each caller-assigned 0-6; Montgomery 1979 ten items; max 60; no total-score severity bands ``` ## Citation [A new depression scale designed to be sensitive to change](https://doi.org/10.1192/bjp.134.4.382) Montgomery SA, Åsberg M Br J Psychiatry. 1979;134:382-389 DOI: [10.1192/bjp.134.4.382](https://doi.org/10.1192/bjp.134.4.382) ## Worked example ### All items 0 Given: `apparent_sadness=0, concentration_difficulties=0, inability_to_feel=0, inner_tension=0, lassitude=0, pessimistic_thoughts=0, reduced_appetite=0, reduced_sleep=0, reported_sadness=0, suicidal_thoughts=0` 1. apparent_sadness, reported_sadness, inner_tension, reduced_sleep, reduced_appetite, concentration_difficulties, lassitude, inability_to_feel, pessimistic_thoughts, and suicidal_thoughts are 0 as assigned by the caller 2. Score = 0 (max 60). Montgomery 1979 published no total-score severity band. ### All items 6 Given: `apparent_sadness=6, concentration_difficulties=6, inability_to_feel=6, inner_tension=6, lassitude=6, pessimistic_thoughts=6, reduced_appetite=6, reduced_sleep=6, reported_sadness=6, suicidal_thoughts=6` 1. each of the ten Montgomery 1979 items is 6 as assigned by the caller 2. Score = 60 (max 60). No total-score severity band. ## Also searched as - MADRS - Montgomery-Åsberg Depression Rating Scale - Montgomery Asberg depression scale - Montgomery 1979 depression - MADRS score - 10-item MADRS - Åsberg depression rating ## Parameters - `apparent_sadness` (integer, required): Caller-assigned Montgomery 1979 apparent sadness (integer 0-6): despondency, gloom, and despair reflected in speech, facial expression, and posture, rated by depth and inability to brighten up. magent does not interview the patient. - `reported_sadness` (integer, required): Caller-assigned Montgomery 1979 reported sadness (integer 0-6): reports of depressed mood, low spirits, despondency, or feeling beyond help, regardless of appearance. magent does not interview the patient. - `inner_tension` (integer, required): Caller-assigned Montgomery 1979 inner tension (integer 0-6): ill-defined discomfort, edginess, inner turmoil, or mental tension mounting to panic, dread, or anguish. magent does not interview the patient. - `reduced_sleep` (integer, required): Caller-assigned Montgomery 1979 reduced sleep (integer 0-6): reduced duration or depth of sleep compared with the subject's own normal pattern when well. magent does not interview the patient. - `reduced_appetite` (integer, required): Caller-assigned Montgomery 1979 reduced appetite (integer 0-6): loss of desire for food or the need to force oneself to eat compared with when well. magent does not interview the patient. - `concentration_difficulties` (integer, required): Caller-assigned Montgomery 1979 concentration difficulties (integer 0-6): difficulty collecting one's thoughts mounting to incapacitating lack of concentration. magent does not interview the patient. - `lassitude` (integer, required): Caller-assigned Montgomery 1979 lassitude (integer 0-6): difficulty getting started or slowness initiating and performing everyday activities. magent does not interview the patient. - `inability_to_feel` (integer, required): Caller-assigned Montgomery 1979 inability to feel (integer 0-6): reduced interest in surroundings or activities that normally give pleasure, or reduced ability to react with adequate emotion. magent does not interview the patient. - `pessimistic_thoughts` (integer, required): Caller-assigned Montgomery 1979 pessimistic thoughts (integer 0-6): thoughts of guilt, inferiority, self-reproach, sinfulness, remorse, or ruin. magent does not interview the patient. - `suicidal_thoughts` (integer, required): Caller-assigned Montgomery 1979 suicidal thoughts (integer 0-6): feeling that life is not worth living, that a natural death would be welcome, suicidal thoughts, or preparations for suicide. A suicide attempt should not in itself influence the rating. magent does not interview the patient. ## Bulk (POST) POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement. Method: `POST /api/calc/madrs` Max items: 25 Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic) Status: PREVIEW - 1 to 25 items. Each item uses the same keys as the GET query parameters. - POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows. - The first invalid item fails the whole request (index in the 400 JSON). You are not charged. - HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row. - Catalog misses (empty matches, found=false) stay paid 200s inside that slot. - x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items. Example request: ```json { "items": [ { "apparent_sadness": "0", "concentration_difficulties": "0", "inability_to_feel": "0", "inner_tension": "0", "lassitude": "0", "pessimistic_thoughts": "0", "reduced_appetite": "0", "reduced_sleep": "0", "reported_sadness": "0", "suicidal_thoughts": "0" }, { "apparent_sadness": "0", "concentration_difficulties": "0", "inability_to_feel": "0", "inner_tension": "0", "lassitude": "0", "pessimistic_thoughts": "0", "reduced_appetite": "0", "reduced_sleep": "0", "reported_sadness": "0", "suicidal_thoughts": "0" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/madrs Example 200: ```json { "count": 2, "path": "/api/calc/madrs", "items": [ { "components": [ { "value": 0, "factor": "apparent_sadness", "points": 0, "present": true }, { "value": 0, "factor": "reported_sadness", "points": 0, "present": true }, { "value": 0, "factor": "inner_tension", "points": 0, "present": true }, { "value": 0, "factor": "reduced_sleep", "points": 0, "present": true }, { "value": 0, "factor": "reduced_appetite", "points": 0, "present": true }, { "value": 0, "factor": "concentration_difficulties", "points": 0, "present": true }, { "value": 0, "factor": "lassitude", "points": 0, "present": true }, { "value": 0, "factor": "inability_to_feel", "points": 0, "present": true }, { "value": 0, "factor": "pessimistic_thoughts", "points": 0, "present": true }, { "value": 0, "factor": "suicidal_thoughts", "points": 0, "present": true } ], "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "citation": { "authors": "Montgomery SA, Åsberg M", "doi": "10.1192/bjp.134.4.382", "id": "montgomery-1979", "pmid": "444788", "source": "Br J Psychiatry. 1979;134:382-389", "title": "A new depression scale designed to be sensitive to change" }, "formula": "madrs", "formula_expression": "MADRS = apparent_sadness + reported_sadness + inner_tension + reduced_sleep + reduced_appetite + concentration_difficulties + lassitude + inability_to_feel + pessimistic_thoughts + suicidal_thoughts; each caller-assigned 0-6; Montgomery 1979 ten items; max 60; no total-score severity bands", "max_score": 60, "score": 0 }, { "components": [ { "value": 0, "factor": "apparent_sadness", "points": 0, "present": true }, { "value": 0, "factor": "reported_sadness", "points": 0, "present": true }, { "value": 0, "factor": "inner_tension", "points": 0, "present": true }, { "value": 0, "factor": "reduced_sleep", "points": 0, "present": true }, { "value": 0, "factor": "reduced_appetite", "points": 0, "present": true }, { "value": 0, "factor": "concentration_difficulties", "points": 0, "present": true }, { "value": 0, "factor": "lassitude", "points": 0, "present": true }, { "value": 0, "factor": "inability_to_feel", "points": 0, "present": true }, { "value": 0, "factor": "pessimistic_thoughts", "points": 0, "present": true }, { "value": 0, "factor": "suicidal_thoughts", "points": 0, "present": true } ], "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "citation": { "authors": "Montgomery SA, Åsberg M", "doi": "10.1192/bjp.134.4.382", "id": "montgomery-1979", "pmid": "444788", "source": "Br J Psychiatry. 1979;134:382-389", "title": "A new depression scale designed to be sensitive to change" }, "formula": "madrs", "formula_expression": "MADRS = apparent_sadness + reported_sadness + inner_tension + reduced_sleep + reduced_appetite + concentration_difficulties + lassitude + inability_to_feel + pessimistic_thoughts + suicidal_thoughts; each caller-assigned 0-6; Montgomery 1979 ten items; max 60; no total-score severity bands", "max_score": 60, "score": 0 } ] } ``` ## Response fields - `formula` (string): madrs - `formula_expression` (string): Exact expression used - `score` (integer): Montgomery 1979 sum of ten caller-assigned 0-6 items (total 0-60) - `max_score` (integer): Always 60 - `components` (array): Per-item caller-assigned points - `citation` (object): Montgomery and Åsberg Br J Psychiatry 1979 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "value": 0, "factor": "apparent_sadness", "points": 0, "present": true }, { "value": 0, "factor": "reported_sadness", "points": 0, "present": true }, { "value": 0, "factor": "inner_tension", "points": 0, "present": true }, { "value": 0, "factor": "reduced_sleep", "points": 0, "present": true }, { "value": 0, "factor": "reduced_appetite", "points": 0, "present": true }, { "value": 0, "factor": "concentration_difficulties", "points": 0, "present": true }, { "value": 0, "factor": "lassitude", "points": 0, "present": true }, { "value": 0, "factor": "inability_to_feel", "points": 0, "present": true }, { "value": 0, "factor": "pessimistic_thoughts", "points": 0, "present": true }, { "value": 0, "factor": "suicidal_thoughts", "points": 0, "present": true } ], "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.", "citation": { "authors": "Montgomery SA, Åsberg M", "doi": "10.1192/bjp.134.4.382", "id": "montgomery-1979", "pmid": "444788", "source": "Br J Psychiatry. 1979;134:382-389", "title": "A new depression scale designed to be sensitive to change" }, "formula": "madrs", "formula_expression": "MADRS = apparent_sadness + reported_sadness + inner_tension + reduced_sleep + reduced_appetite + concentration_difficulties + lassitude + inability_to_feel + pessimistic_thoughts + suicidal_thoughts; each caller-assigned 0-6; Montgomery 1979 ten items; max 60; no total-score severity bands", "max_score": 60, "score": 0 } ``` ## Errors - HTTP 400 `invalid_madrs`: MADRS needs ten caller-assigned items, each an integer 0-6 (Montgomery 1979). Returned before settlement; you are not charged. - HTTP 400 `invalid_madrs_item`: each MADRS item must be an integer from 0 to 6 (Montgomery 1979). Returned before settlement; you are not charged. - HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged. - HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged. - HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged. Shared HTTP 402 and 503: https://magentlab.com/docs/payments ## Related tools - [HAM-D](https://magentlab.com/docs/hamilton-depression) — Sum seventeen caller-assigned Hamilton 1960 items (eight integers 0-4 and nine integers 0-2) and return the published 0-50 total. Does not apply later total-score severity bands or the four excluded 21-item variables. - [PHQ-9](https://magentlab.com/docs/phq-9) — Sum nine caller-assigned Kroenke 2001 PHQ-9 integers (0-3) and return the published total (max 27), severity cutpoints, and ≥10 screen. ## Payment Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. - GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall). - HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote. - Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional. - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402. - offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront. - offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization. - not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search. Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers). Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments Stdio MCP (one process per host): https://magentlab.com/docs/mcp ## Guarantees - HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON. - exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE. - HTTP 402 is unpaid only. Do not sign a second authorization because of a 503. - Execution is timeout-bounded and concurrency-capped. - Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.