# AUDIT-C Alcohol Screening Score Calculator (Bush 1998)

> AUDIT-C Alcohol Screening Score Calculator (Bush 1998) 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 AUDIT-C total score (0–12) from three caller-assigned item scores and returns binary flags for the Bush 1998 cutoffs of ≥3 and ≥4.

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/audit_c
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/audit-c-alcohol-screening-score-calculator-bush-1998-5f22fb14
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yqzxLEazgkP1bXsyEUl9q

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability audit-c-alcohol-screening-score-calculator-bush-1998-5f22fb14
```

Example prompt: Run the AUDIT-C Bush 1998 screen for a patient who scored 2 on drinking frequency, 3 on typical drinks, and 1 on binge frequency — I need the total score and whether they hit the ≥3 and ≥4 cutoffs.

## When to prefer this

Choose this endpoint when you need a fast, deterministic computation of the Bush 1998 three-item AUDIT-C score from pre-assigned integer item scores and want the standard ≥3/≥4 VA outpatient cutoffs. Do not use it if you need the full 10-item AUDIT, sex-specific primary care cutoffs, CIWA-Ar severity scoring, or if you need the endpoint to map free-text drink-count categories to scores — the caller must supply pre-scored integers.

## Known failure modes

- Integer values outside 0–4 may cause a validation error or unexpected results
- Missing required query parameters (frequency, typical_drinks, binge_frequency) will return an error
- Non-integer inputs will fail schema validation
- This endpoint does not apply sex-specific cutoffs or full 10-item AUDIT logic — misuse if those are intended

## How this service works

Bush 1998 AUDIT-C from three caller-assigned integers 0-4 (frequency, typical drinks, binge frequency); magent does not map drink-count categories. Total 0-12. This paper reported ≥3 as sensitive and ≥4 as more specific for heavy drinking / active abuse or dependence in VA outpatients (mostly men). Returns screen_ge_3 and screen_ge_4. Not later sex-specific VA primary-care cutoffs, not the full 10-item AUDIT, and not CIWA-Ar. Not a diagnosis.

## Output

Returns the AUDIT-C total score (sum of the three item scores, range 0–12) along with two boolean flags: screen_ge_3 (true if total ≥ 3, the more sensitive Bush 1998 cutoff for heavy drinking) and screen_ge_4 (true if total ≥ 4, the more specific cutoff for active alcohol abuse or dependence in VA outpatients).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "frequency",
      "typical_drinks",
      "binge_frequency"
     ],
     "properties": {
      "frequency": {
       "type": "integer",
       "description": "Caller-assigned Bush 1998 AUDIT item 1 points (integer 0-4): how often the patient had a drink containing alcohol in the past year. magent does not map drink-count categories."
      },
      "typical_drinks": {
       "type": "integer",
       "description": "Caller-assigned Bush 1998 AUDIT item 2 points (integer 0-4): how many drinks on a typical drinking day. magent does not map drink-count categories."
      },
      "binge_frequency": {
       "type": "integer",
       "description": "Caller-assigned Bush 1998 AUDIT item 3 points (integer 0-4): how often six or more drinks on one occasion. magent does not map drink-count categories."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "path": "/api/calc/audit_c",
  "count": 2,
  "items": [
   {
    "score": 0,
    "formula": "audit_c",
    "citation": {
     "id": "bush-1998",
     "doi": "10.1001/archinte.158.16.1789",
     "title": "The AUDIT alcohol consumption questions (AUDIT-C): an effective brief screening test for problem drinking",
     "source": "Arch Intern Med. 1998;158(16):1789-1795",
     "authors": "Bush K, Kivlahan DR, McDonell MB, Fihn SD, Bradley KA"
    },
    "max_score": 12,
    "components": [
     {
      "value": 0,
      "factor": "frequency",
      "points": 0,
      "present": true
     },
     {
      "value": 0,
      "factor": "typical_drinks",
      "points": 0,
      "present": true
     },
     {
      "value": 0,
      "factor": "binge_frequency",
      "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.",
    "screen_ge_3": false,
    "screen_ge_4": false,
    "formula_expression": "AUDIT-C = frequency + typical_drinks + binge_frequency; each caller-assigned 0-4; max 12"
   },
   {
    "score": 0,
    "formula": "audit_c",
    "citation": {
     "id": "bush-1998",
     "doi": "10.1001/archinte.158.16.1789",
     "title": "The AUDIT alcohol consumption questions (AUDIT-C): an effective brief screening test for problem drinking",
     "source": "Arch Intern Med. 1998;158(16):1789-1795",
     "authors": "Bush K, Kivlahan DR, McDonell MB, Fihn SD, Bradley KA"
    },
    "max_score": 12,
    "components": [
     {
      "value": 0,
      "factor": "frequency",
      "points": 0,
      "present": true
     },
     {
      "value": 0,
      "factor": "typical_drinks",
      "points": 0,
      "present": true
     },
     {
      "value": 0,
      "factor": "binge_frequency",
      "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.",
    "screen_ge_3": false,
    "screen_ge_4": false,
    "formula_expression": "AUDIT-C = frequency + typical_drinks + binge_frequency; each caller-assigned 0-4; max 12"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/audit-c-alcohol-screening-score-calculator-bush-1998-5f22fb14/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.magentlab.com](https://www.zero.xyz/host/api.magentlab.com/llms.txt)