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SOFA Score Calculator (Vincent 1996)
x402
SOFA Score Calculator (Vincent 1996) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Computes the SOFA (Sepsis-related Organ Failure Assessment) score across six organ systems using PaO2/FiO2, platelets, bilirubin, MAP/vasopressors, GCS, and creatinine or urine output.
Price / call$0.005
Success—
StatusUnknown
How this service works
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Output
Returns the total SOFA score (0–24) and individual subscores for each of the six organ systems: respiration (PaO2/FiO2 ± ventilation), coagulation (platelets), liver (bilirubin), cardiovascular (MAP and adrenergic agents), neurological (GCS), and renal (creatinine or urine output), along with the Vincent 1996 citation. This is a deterministic rule-based calculation, not a Sepsis-3 diagnosis.
Example use cases
ICU sepsis severity triage
“My patient in the ICU has PaO2 68 mm Hg, FiO2 0.6, is on mechanical ventilation, platelets 55 (10^9/L), bilirubin 7 mg/dL, MAP 58 mm Hg with norepinephrine at 0.15 mcg/kg/min, GCS 8, and creatinine 3.8 mg/dL — what's the full SOFA score with each organ subscore?”
Monitoring organ failure trend in critically ill patient
“Run the SOFA score for today's labs: PaO2 220 mm Hg, FiO2 0.35, not ventilated, platelets 140 (10^9/L), bilirubin 1.5 mg/dL, MAP 72 mm Hg, no vasopressors, GCS 14, creatinine 1.4 mg/dL — I want to compare it to yesterday's score.”
Vasopressor-driven cardiovascular SOFA subcomponent
“Calculate the SOFA score for a patient on dobutamine plus epinephrine at 0.2 mcg/kg/min: PaO2 310 mm Hg, FiO2 0.4, ventilated, platelets 200 (10^9/L), bilirubin 0.9 mg/dL, MAP 66 mm Hg, GCS 15, urine output 400 mL/day.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/sofa?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a deterministic, citation-backed SOFA score per the original Vincent 1996 methodology for ICU or critical care clinical decision support, documentation, or research. Prefer this over manual computation or generic LLM estimation when accuracy, reproducibility, and auditability matter. This is not a Sepsis-3 qSOFA calculator — use it specifically when the full six-organ SOFA with adrenergic dosing bands is required.
Side effects
- Missing required parameters (pao2_mm_hg, fio2, ventilated, platelets, map_mm_hg, gcs) returns a validation error
- Out-of-range values (e.g. FiO2 outside 0.21–1.0, GCS outside 3–15) may be rejected or produce undefined results
- Neither bilirubin nor creatinine/urine output provided may return an incomplete or error response
- PaO2/FiO2 <200 without ventilation=true is capped at respiratory subscore 2 by design, not an error
- Vasopressor doses with incorrect units (e.g. providing mg instead of mcg/kg/min) will silently produce wrong subscores
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/sofa",
"count": 2,
"items": [
{
"score": 0,
"formula": "sofa",
"citation": {
"id": "vincent-1996",
"doi": "10.1007/BF01709751",
"title": "The SOFA (Sepsis-related Organ Failure Assessment) score to describe organ dysfunction/failure",
"source": "Intensive Care Med. 1996;22(7):707-710",
"authors": "Vincent JL, Moreno R, Takala J, Willatts S, De Mendonça A, Bruining H, Reinhart CK, Suter PM, Thijs LG"
},
"max_score": 24,
"components": [
{
"value": 457.1428571428572,
"factor": "respiration",
"points": 0,
"present": false
},
{
"value": 200,
"factor": "coagulation",
"points": 0,
"present": false
},
{
"value": 0.8,
"factor": "liver",
"points": 0,
"present": false
},
{
"value": 80,
"factor": "cardiovascular",
"points": 0,
"present": false
},
{
"value": 15,
"factor": "cns",
"points": 0,
"present": false
},
{
"value": 1,
"factor": "renal",
"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.",
"formula_expression": "SOFA = respiration + coagulation + liver + cardiovascular + cns + renal; each 0-4; max 24"
},
{
"score": 0,
"formula": "sofa",
"citation": {
"id": "vincent-1996",
"doi": "10.1007/BF01709751",
"title": "The SOFA (Sepsis-related Organ Failure Assessment) score to describe organ dysfunction/failure",
"source": "Intensive Care Med. 1996;22(7):707-710",
"authors": "Vincent JL, Moreno R, Takala J, Willatts S, De Mendonça A, Bruining H, Reinhart CK, Suter PM, Thijs LG"
},
"max_score": 24,
"components": [
{
"value": 457.1428571428572,
"factor": "respiration",
"points": 0,
"present": false
},
{
"value": 200,
"factor": "coagulation",
"points": 0,
"present": false
},
{
"value": 0.8,
"factor": "liver",
"points": 0,
"present": false
},
{
"value": 80,
"factor": "cardiovascular",
"points": 0,
"present": false
},
{
"value": 15,
"factor": "cns",
"points": 0,
"present": false
},
{
"value": 1,
"factor": "renal",
"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.",
"formula_expression": "SOFA = respiration + coagulation + liver + cardiovascular + cns + renal; each 0-4; max 24"
}
]
}
}Tags
x402
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