# Magent Sgarbossa 1996 AMI Score Calculator

> Magent Sgarbossa 1996 AMI 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 2026-09-15).

Computes the Sgarbossa 1996 GUSTO-1 score for identifying AMI in left bundle-branch block using three Boolean ECG criteria assigned by the caller

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/sgarbossa
- 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/magent-sgarbossa-1996-ami-score-calculator-57f7fdb5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7vHuuguUZDzCtWlfDF50Q

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 magent-sgarbossa-1996-ami-score-calculator-57f7fdb5
```

Example prompt: Calculate the Sgarbossa 1996 AMI score for a patient with LBBB — concordant ST elevation ≥1 mm is present, concordant ST depression in V1–V3 is absent, and discordant ST elevation ≥5 mm is present.

## When to prefer this

Use this endpoint when you need a deterministic, citation-backed Sgarbossa 1996 score computed from caller-assigned Boolean ECG criteria for a patient with left bundle-branch block and suspected AMI. Prefer this over manual calculation to avoid arithmetic error in clinical workflows. Note this implements the original Sgarbossa 1996 thresholds (not the Smith modified ratio), so choose accordingly when the clinical context specifies which version is required.

## Known failure modes

- Missing required Boolean parameter returns validation error
- Non-boolean value for any criterion causes schema rejection
- Network timeout on the magentlab API endpoint
- Caller misinterprets ECG findings — score reflects caller-assigned values, not actual tracing analysis
- Score of 0 or low score does not rule out AMI — endpoint provides no negative predictive guarantee

## How this service works

Sgarbossa 1996 GUSTO-1 criteria for evolving AMI in left bundle-branch block: caller-assigned concordant ST elevation ≥1 mm (5), concordant ST depression ≥1 mm in V1–V3 (3), and discordant ST elevation ≥5 mm (2). Max 10. Score ≥3 had ~90% specificity in the derivation. Deterministic published score with citation; not a diagnosis, not the Smith modification, and magent does not read the tracing.

## Output

Returns the total Sgarbossa score (0–10) based on the three Boolean criteria: 5 points for concordant ST elevation ≥1 mm, 3 points for concordant ST depression ≥1 mm in V1–V3, and 2 points for discordant ST elevation ≥5 mm. A score ≥3 had ~90% specificity for AMI in the original derivation cohort. The result is a deterministic arithmetic calculation; it is not a clinical diagnosis and does not reflect the Smith modification.

## 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": [
      "concordant_st_elevation_1mm",
      "concordant_st_depression_v1_v3",
      "discordant_st_elevation_5mm"
     ],
     "properties": {
      "concordant_st_elevation_1mm": {
       "type": "boolean",
       "description": "Concordant ST elevation ≥1 mm in a lead with a positive QRS (Sgarbossa 1996, 5 points). true or false as assigned by the caller. magent does not measure the ECG."
      },
      "discordant_st_elevation_5mm": {
       "type": "boolean",
       "description": "Discordant ST elevation ≥5 mm (ST opposite QRS; Sgarbossa 1996, 2 points). true or false as assigned by the caller. magent does not measure the ECG. Not the Smith ST/S ratio."
      },
      "concordant_st_depression_v1_v3": {
       "type": "boolean",
       "description": "Concordant ST depression ≥1 mm in V1, V2, or V3 (Sgarbossa 1996, 3 points). true or false as assigned by the caller. magent does not measure the ECG."
      }
     }
    }
   },
   "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/sgarbossa",
  "count": 2,
  "items": [
   {
    "score": 0,
    "formula": "sgarbossa",
    "citation": {
     "id": "sgarbossa-1996",
     "doi": "10.1056/NEJM199602223340801",
     "pmid": "8559200",
     "title": "Electrocardiographic diagnosis of evolving acute myocardial infarction in the presence of left bundle-branch block",
     "source": "N Engl J Med. 1996;334(8):481-487",
     "authors": "Sgarbossa EB, Pinski SL, Barbagelata A, et al."
    },
    "max_score": 10,
    "components": [
     {
      "factor": "concordant_st_elevation_1mm",
      "points": 0,
      "present": false
     },
     {
      "factor": "concordant_st_depression_v1_v3",
      "points": 0,
      "present": false
     },
     {
      "factor": "discordant_st_elevation_5mm",
      "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.",
    "score_ge_3": false,
    "formula_expression": "Sgarbossa = 5*concordant_st_elevation_1mm + 3*concordant_st_depression_v1_v3 + 2*discordant_st_elevation_5mm; max 10; score_ge_3 iff total >= 3"
   },
   {
    "score": 0,
    "formula": "sgarbossa",
    "citation": {
     "id": "sgarbossa-1996",
     "doi": "10.1056/NEJM199602223340801",
     "pmid": "8559200",
     "title": "Electrocardiographic diagnosis of evolving acute myocardial infarction in the presence of left bundle-branch block",
     "source": "N Engl J Med. 1996;334(8):481-487",
     "authors": "Sgarbossa EB, Pinski SL, Barbagelata A, et al."
    },
    "max_score": 10,
    "components": [
     {
      "factor": "concordant_st_elevation_1mm",
      "points": 0,
      "present": false
     },
     {
      "factor": "concordant_st_depression_v1_v3",
      "points": 0,
      "present": false
     },
     {
      "factor": "discordant_st_elevation_5mm",
      "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.",
    "score_ge_3": false,
    "formula_expression": "Sgarbossa = 5*concordant_st_elevation_1mm + 3*concordant_st_depression_v1_v3 + 2*discordant_st_elevation_5mm; max 10; score_ge_3 iff total >= 3"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/magent-sgarbossa-1996-ami-score-calculator-57f7fdb5/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)