Short Michigan Alcoholism Screening Test (SMAST)

SMAST

Count Selzer 1975 SMAST alcoholic-direction answers and return the published 0-1 nonalcoholic, 2 possible, and ≥3 alcoholic bands.

LIVE $0.005 USDC GET /api/calc/smast

Markdown: /docs/smast.md · Canonical: https://magentlab.com/docs/smast

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Count Selzer 1975 SMAST alcoholic-direction answers and return the published 0-1 nonalcoholic, 2 possible, and ≥3 alcoholic bands.

When to use

When an agent has already assigned the 13 SMAST yes/no items and needs that paper's scored total and cutoffs, not the 25-item MAST, Brief MAST, SMAST-G, or later clinic 0-2 / 3 / ≥4 tables.

When not to use

Not a medical device.
Not a diagnosis of alcoholism or alcohol use disorder.
magent does not interview the patient. Each item is caller-assigned yes/no.
Scoring uses the Selzer 1975 alcoholic-direction key. feel_normal_drinker, friends_think_normal_drinker, and able_to_stop score 1 if false. magent does not award 1 point for every yes.
This is the 13-item SMAST only. Not the 25-item MAST, not Pokorny 1972 Brief MAST, and not SMAST-G.
Cutoffs are this paper's 0-1 nonalcoholic, 2 possible, and ≥3 alcoholic. magent does not apply later clinic 0-2 / 3 borderline / ≥4 tables.

Formula

SMAST = (1 if not feel_normal_drinker) + relative_worry_or_complain + feel_guilty + (1 if not friends_think_normal_drinker) + (1 if not able_to_stop) + attended_aa + drinking_created_problems + trouble_at_work + neglected_obligations + gone_for_help + hospital_because_of_drinking + arrested_drunk_driving + arrested_drunken_behavior; each 1 in the Selzer 1975 alcoholic direction; max 13

Citation

Title: A self-administered Short Michigan Alcoholism Screening Test (SMAST)
Authors: Selzer ML, Vinokur A, van Rooijen L
Source: J Stud Alcohol. 1975;36(1):117-126
DOI: 10.15288/jsa.1975.36.117

Worked example

All non-alcoholic answers

Given: able_to_stop=truearrested_drunk_driving=falsearrested_drunken_behavior=falseattended_aa=falsedrinking_created_problems=falsefeel_guilty=falsefeel_normal_drinker=truefriends_think_normal_drinker=truegone_for_help=falsehospital_because_of_drinking=falseneglected_obligations=falserelative_worry_or_complain=falsetrouble_at_work=false

feel_normal_drinker, friends_think_normal_drinker, and able_to_stop are true (not scored)
the other ten items are false (not scored)
score = 0; band nonalcoholic

Two alcoholic-direction answers

Given: able_to_stop=truearrested_drunk_driving=falsearrested_drunken_behavior=falseattended_aa=truedrinking_created_problems=falsefeel_guilty=truefeel_normal_drinker=truefriends_think_normal_drinker=truegone_for_help=falsehospital_because_of_drinking=falseneglected_obligations=falserelative_worry_or_complain=falsetrouble_at_work=false

feel_guilty and attended_aa true
score = 2; band possible

Three alcoholic-direction answers

feel_guilty, attended_aa, and trouble_at_work true
score = 3; band alcoholic

Also searched as

Short Michigan Alcoholism Screening Test
SMAST
SMAST-13
Selzer SMAST
short MAST
SMAST score
Michigan alcoholism short test
Selzer 1975 SMAST

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/smast?feel_normal_drinker=true&relative_worry_or_complain=false&feel_guilty=false&friends_think_normal_drinker=true&able_to_stop=true&attended_aa=false&drinking_created_problems=false&trouble_at_work=false&neglected_obligations=false&gone_for_help=false&hospital_because_of_drinking=false&arrested_drunk_driving=false&arrested_drunken_behavior=false

Full URL: https://api.magentlab.com/api/calc/smast?feel_normal_drinker=true&relative_worry_or_complain=false&feel_guilty=false&friends_think_normal_drinker=true&able_to_stop=true&attended_aa=false&drinking_created_problems=false&trouble_at_work=false&neglected_obligations=false&gone_for_help=false&hospital_because_of_drinking=false&arrested_drunk_driving=false&arrested_drunken_behavior=false

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/smast?feel_normal_drinker=true&relative_worry_or_complain=false&feel_guilty=false&friends_think_normal_drinker=true&able_to_stop=true&attended_aa=false&drinking_created_problems=false&trouble_at_work=false&neglected_obligations=false&gone_for_help=false&hospital_because_of_drinking=false&arrested_drunk_driving=false&arrested_drunken_behavior=false"

Parameters

Name	Type	Required	Description
`feel_normal_drinker`	boolean	required	Do you feel you are a normal drinker? (By normal we mean you drink less than or as much as most other people.) (Selzer 1975 SMAST item 1). true or false as assigned by the caller. false is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`relative_worry_or_complain`	boolean	required	Does your wife, husband, a parent, or other near relative ever worry or complain about your drinking? (Selzer 1975 SMAST item 2). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`feel_guilty`	boolean	required	Do you ever feel guilty about your drinking? (Selzer 1975 SMAST item 3). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`friends_think_normal_drinker`	boolean	required	Do friends or relatives think you are a normal drinker? (Selzer 1975 SMAST item 4). true or false as assigned by the caller. false is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`able_to_stop`	boolean	required	Are you able to stop drinking when you want to? (Selzer 1975 SMAST item 5). true or false as assigned by the caller. false is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`attended_aa`	boolean	required	Have you ever attended a meeting of Alcoholics Anonymous? (Selzer 1975 SMAST item 6). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`drinking_created_problems`	boolean	required	Has drinking ever created problems between you and your wife, husband, a parent, or other near relative? (Selzer 1975 SMAST item 7). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`trouble_at_work`	boolean	required	Have you ever gotten into trouble at work because of drinking? (Selzer 1975 SMAST item 8). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`neglected_obligations`	boolean	required	Have you ever neglected your obligations, your family, or your work for two or more days in a row because you were drinking? (Selzer 1975 SMAST item 9). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`gone_for_help`	boolean	required	Have you ever gone to anyone for help about your drinking? (Selzer 1975 SMAST item 10). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`hospital_because_of_drinking`	boolean	required	Have you ever been in a hospital because of drinking? (Selzer 1975 SMAST item 11). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`arrested_drunk_driving`	boolean	required	Have you ever been arrested for drunk driving, driving while intoxicated, or driving after drinking? (Selzer 1975 SMAST item 12). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. magent does not interview the patient.
`arrested_drunken_behavior`	boolean	required	Have you ever been arrested, even for a few hours, because of drunken behavior? (Selzer 1975 SMAST item 13). true or false as assigned by the caller. true is the alcoholic-direction answer and scores 1. 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.

POST /api/calc/smast Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 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 (fixture)

{
  "items": [
    {
      "able_to_stop": "true",
      "arrested_drunk_driving": "false",
      "arrested_drunken_behavior": "false",
      "attended_aa": "false",
      "drinking_created_problems": "false",
      "feel_guilty": "false",
      "feel_normal_drinker": "true",
      "friends_think_normal_drinker": "true",
      "gone_for_help": "false",
      "hospital_because_of_drinking": "false",
      "neglected_obligations": "false",
      "relative_worry_or_complain": "false",
      "trouble_at_work": "false"
    },
    {
      "able_to_stop": "true",
      "arrested_drunk_driving": "false",
      "arrested_drunken_behavior": "false",
      "attended_aa": "false",
      "drinking_created_problems": "false",
      "feel_guilty": "false",
      "feel_normal_drinker": "true",
      "friends_think_normal_drinker": "true",
      "gone_for_help": "false",
      "hospital_because_of_drinking": "false",
      "neglected_obligations": "false",
      "relative_worry_or_complain": "false",
      "trouble_at_work": "false"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/smast",
  "items": [
    {
      "band": "nonalcoholic",
      "components": [
        {
          "factor": "feel_normal_drinker",
          "points": 0,
          "present": false
        },
        {
          "factor": "relative_worry_or_complain",
          "points": 0,
          "present": false
        },
        {
          "factor": "feel_guilty",
          "points": 0,
          "present": false
        },
        {
          "factor": "friends_think_normal_drinker",
          "points": 0,
          "present": false
        },
        {
          "factor": "able_to_stop",
          "points": 0,
          "present": false
        },
        {
          "factor": "attended_aa",
          "points": 0,
          "present": false
        },
        {
          "factor": "drinking_created_problems",
          "points": 0,
          "present": false
        },
        {
          "factor": "trouble_at_work",
          "points": 0,
          "present": false
        },
        {
          "factor": "neglected_obligations",
          "points": 0,
          "present": false
        },
        {
          "factor": "gone_for_help",
          "points": 0,
          "present": false
        },
        {
          "factor": "hospital_because_of_drinking",
          "points": 0,
          "present": false
        },
        {
          "factor": "arrested_drunk_driving",
          "points": 0,
          "present": false
        },
        {
          "factor": "arrested_drunken_behavior",
          "points": 0,
          "present": false
        }
      ],
      "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": "Selzer ML, Vinokur A, van Rooijen L",
        "doi": "10.15288/jsa.1975.36.117",
        "id": "selzer-1975",
        "pmid": "238068",
        "source": "J Stud Alcohol. 1975;36(1):117-126",
        "title": "A self-administered Short Michigan Alcoholism Screening Test (SMAST)"
      },
      "formula": "smast",
      "formula_expression": "SMAST = (1 if not feel_normal_drinker) + relative_worry_or_complain + feel_guilty + (1 if not friends_think_normal_drinker) + (1 if not able_to_stop) + attended_aa + drinking_created_problems + trouble_at_work + neglected_obligations + gone_for_help + hospital_because_of_drinking + arrested_drunk_driving + arrested_drunken_behavior; each 1 in the Selzer 1975 alcoholic direction; max 13",
      "max_score": 13,
      "score": 0
    },
    {
      "band": "nonalcoholic",
      "components": [
        {
          "factor": "feel_normal_drinker",
          "points": 0,
          "present": false
        },
        {
          "factor": "relative_worry_or_complain",
          "points": 0,
          "present": false
        },
        {
          "factor": "feel_guilty",
          "points": 0,
          "present": false
        },
        {
          "factor": "friends_think_normal_drinker",
          "points": 0,
          "present": false
        },
        {
          "factor": "able_to_stop",
          "points": 0,
          "present": false
        },
        {
          "factor": "attended_aa",
          "points": 0,
          "present": false
        },
        {
          "factor": "drinking_created_problems",
          "points": 0,
          "present": false
        },
        {
          "factor": "trouble_at_work",
          "points": 0,
          "present": false
        },
        {
          "factor": "neglected_obligations",
          "points": 0,
          "present": false
        },
        {
          "factor": "gone_for_help",
          "points": 0,
          "present": false
        },
        {
          "factor": "hospital_because_of_drinking",
          "points": 0,
          "present": false
        },
        {
          "factor": "arrested_drunk_driving",
          "points": 0,
          "present": false
        },
        {
          "factor": "arrested_drunken_behavior",
          "points": 0,
          "present": false
        }
      ],
      "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": "Selzer ML, Vinokur A, van Rooijen L",
        "doi": "10.15288/jsa.1975.36.117",
        "id": "selzer-1975",
        "pmid": "238068",
        "source": "J Stud Alcohol. 1975;36(1):117-126",
        "title": "A self-administered Short Michigan Alcoholism Screening Test (SMAST)"
      },
      "formula": "smast",
      "formula_expression": "SMAST = (1 if not feel_normal_drinker) + relative_worry_or_complain + feel_guilty + (1 if not friends_think_normal_drinker) + (1 if not able_to_stop) + attended_aa + drinking_created_problems + trouble_at_work + neglected_obligations + gone_for_help + hospital_because_of_drinking + arrested_drunk_driving + arrested_drunken_behavior; each 1 in the Selzer 1975 alcoholic direction; max 13",
      "max_score": 13,
      "score": 0
    }
  ]
}

Response

Field	Type	Description
`formula`	string	smast
`formula_expression`	string	Exact expression used
`score`	integer	SMAST points 0-13. Count of Selzer 1975 alcoholic-direction answers, not a raw yes count.
`max_score`	integer	13
`band`	string	Selzer 1975 screen category: nonalcoholic (0-1), possible (2), or alcoholic (≥3). Not a diagnosis.
`components`	array	Per-item points. present is true when the answer is in the alcoholic direction.
`citation`	object	Selzer et al. J Stud Alcohol 1975 citation
`disclaimer`	string	Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "band": "nonalcoholic",
  "components": [
    {
      "factor": "feel_normal_drinker",
      "points": 0,
      "present": false
    },
    {
      "factor": "relative_worry_or_complain",
      "points": 0,
      "present": false
    },
    {
      "factor": "feel_guilty",
      "points": 0,
      "present": false
    },
    {
      "factor": "friends_think_normal_drinker",
      "points": 0,
      "present": false
    },
    {
      "factor": "able_to_stop",
      "points": 0,
      "present": false
    },
    {
      "factor": "attended_aa",
      "points": 0,
      "present": false
    },
    {
      "factor": "drinking_created_problems",
      "points": 0,
      "present": false
    },
    {
      "factor": "trouble_at_work",
      "points": 0,
      "present": false
    },
    {
      "factor": "neglected_obligations",
      "points": 0,
      "present": false
    },
    {
      "factor": "gone_for_help",
      "points": 0,
      "present": false
    },
    {
      "factor": "hospital_because_of_drinking",
      "points": 0,
      "present": false
    },
    {
      "factor": "arrested_drunk_driving",
      "points": 0,
      "present": false
    },
    {
      "factor": "arrested_drunken_behavior",
      "points": 0,
      "present": false
    }
  ],
  "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": "Selzer ML, Vinokur A, van Rooijen L",
    "doi": "10.15288/jsa.1975.36.117",
    "id": "selzer-1975",
    "pmid": "238068",
    "source": "J Stud Alcohol. 1975;36(1):117-126",
    "title": "A self-administered Short Michigan Alcoholism Screening Test (SMAST)"
  },
  "formula": "smast",
  "formula_expression": "SMAST = (1 if not feel_normal_drinker) + relative_worry_or_complain + feel_guilty + (1 if not friends_think_normal_drinker) + (1 if not able_to_stop) + attended_aa + drinking_created_problems + trouble_at_work + neglected_obligations + gone_for_help + hospital_because_of_drinking + arrested_drunk_driving + arrested_drunken_behavior; each 1 in the Selzer 1975 alcoholic direction; max 13",
  "max_score": 13,
  "score": 0
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP	Code	When
400	`invalid_smast`	Each SMAST item must be yes or no as in Selzer 1975; reverse-scored items use that paper's key. Returned before settlement; you are not charged.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

CAGE — Sum the four Ewing 1984 CAGE items and return whether two or more answers are affirmative.
AUDIT-C — Sum three caller-assigned Bush 1998 AUDIT-C integers (0-4) and return this paper's ≥3 and ≥4 screens.
CRAFFT — Sum the six Knight 2002 CRAFFT items and return whether two or more answers are affirmative.

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. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /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.