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SMART-COP Score for Community-Acquired Pneumonia (Charles 2008)
x402
SMART-COP Score for Community-Acquired Pneumonia (Charles 2008) 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).
Calculates the SMART-COP score to predict need for intensive respiratory or vasopressor support in community-acquired pneumonia patients
Price / call$0.005
Success—
StatusUnknown
How this service works
Charles 2008 SMART-COP for intensive respiratory or vasopressor support in community-acquired pneumonia: SBP <90 (2), multilobar CXR (1), albumin <3.5 g/dL (1), age-adjusted RR (1), HR >=125 (1), new confusion (1), age-adjusted low oxygen (2), arterial pH <7.35 (2; omitted pH scores 0). Max 11. IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high. Not a site-of-care protocol. Albumin g/dL or g/L. Exactly one of PaO2, SpO2, or P/F.
Output
Returns the total SMART-COP score (0–11), the IRVS risk category (low: 0–2, moderate: 3–4, high: 5–6, very high: ≥7), and the individual point contributions from each clinical parameter (SBP, multilobar CXR, albumin, age-adjusted respiratory rate, heart rate, confusion, age-adjusted oxygenation, and arterial pH).
Example use cases
ED triage of severe CAP
“I have a 72-year-old pneumonia patient in the ED — systolic BP 95 mmHg, multilobar CXR, albumin 3.2 g/dL, RR 34, HR 128, no confusion, SpO2 86%, and arterial pH 7.32. Run the SMART-COP score to see if they need intensive respiratory support.”
ICU admission decision support
“For this 55-year-old admitted with community-acquired pneumonia, compute their SMART-COP score: BP 110 systolic, no multilobar involvement, albumin 3.8 g/dL, RR 28, HR 120, acutely confused, P/F ratio 280, pH not available.”
Pneumonia severity audit for QI
“Score this 45-year-old CAP patient's SMART-COP: systolic 100 mmHg, no multilobar CXR, albumin 4.0 g/dL, respiratory rate 22, heart rate 95 bpm, no confusion, PaO2 75 mmHg, no arterial pH — I need the IRVS risk category for our quality review.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/smart_copWhen to prefer
Use this endpoint when you need to predict the risk of needing intensive respiratory or vasopressor support (IRVS) in a community-acquired pneumonia patient according to the validated Charles 2008 SMART-COP criteria. Prefer this over PSI/PORT or CURB-65 when the specific clinical question is ICU-level support need rather than 30-day mortality or site-of-care triage. Note this is not a site-of-care protocol — it predicts IRVS need, not admission vs. discharge.
Side effects
- Missing required parameters (age, systolic_mm_hg, multilobar_cxr, respiratory_rate, heart_rate_bpm, confusion) returns validation error
- Providing more than one oxygenation input (pao2_mm_hg, spo2_percent, pf_ratio) simultaneously returns an error
- Providing both albumin_g_dl and albumin_g_l simultaneously returns an error
- Values outside allowed ranges (e.g. age outside 18–120, pH outside 6.80–7.80) return validation error
- Omitting arterial pH is valid and scores 0 per Charles 2008 convention
- Payment failure (x402) returns 402 with payment details required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/smart_cop",
"count": 2,
"items": [
{
"score": 0,
"formula": "smart_cop",
"citation": {
"id": "charles-2008",
"doi": "10.1086/589754",
"pmid": "18558884",
"title": "SMART-COP: a tool for predicting the need for intensive respiratory or vasopressor support in community-acquired pneumonia",
"source": "Clin Infect Dis. 2008;47(3):375-384",
"authors": "Charles PGP, Wolfe R, Whitby M, et al."
},
"age_years": 40,
"irvs_risk": "low",
"max_score": 11,
"components": [
{
"value": 120,
"factor": "systolic_lt_90",
"points": 0,
"present": false
},
{
"factor": "multilobar_cxr",
"points": 0,
"present": false
},
{
"value": 4,
"factor": "albumin_lt_3_5",
"points": 0,
"present": false
},
{
"value": 16,
"factor": "respiratory_rate",
"points": 0,
"present": false
},
{
"value": 80,
"factor": "heart_rate_ge_125",
"points": 0,
"present": false
},
{
"factor": "confusion",
"points": 0,
"present": false
},
{
"input": "spo2_percent",
"value": 98,
"factor": "oxygen_low",
"points": 0,
"present": false
},
{
"value": 7.4,
"factor": "arterial_ph_lt_7_35",
"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.",
"arterial_ph": 7.4,
"albumin_g_dl": 4,
"spo2_percent": 98,
"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"formula_expression": "SMART-COP (Charles 2008) = SBP<90 (2) + multilobar_cxr (1) + albumin<3.5 g/dL (1) + age-adjusted RR (1; age<=50 RR>=25, age>50 RR>=30) + HR>=125 (1) + confusion (1) + age-adjusted low oxygen (2; age<=50 PaO2<70 or SpO2<=93 or P/F<333; age>50 PaO2<60 or SpO2<=90 or P/F<250) + arterial_pH<7.35 (2; omitted pH scores 0); max 11; IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high"
},
{
"score": 0,
"formula": "smart_cop",
"citation": {
"id": "charles-2008",
"doi": "10.1086/589754",
"pmid": "18558884",
"title": "SMART-COP: a tool for predicting the need for intensive respiratory or vasopressor support in community-acquired pneumonia",
"source": "Clin Infect Dis. 2008;47(3):375-384",
"authors": "Charles PGP, Wolfe R, Whitby M, et al."
},
"age_years": 40,
"irvs_risk": "low",
"max_score": 11,
"components": [
{
"value": 120,
"factor": "systolic_lt_90",
"points": 0,
"present": false
},
{
"factor": "multilobar_cxr",
"points": 0,
"present": false
},
{
"value": 4,
"factor": "albumin_lt_3_5",
"points": 0,
"present": false
},
{
"value": 16,
"factor": "respiratory_rate",
"points": 0,
"present": false
},
{
"value": 80,
"factor": "heart_rate_ge_125",
"points": 0,
"present": false
},
{
"factor": "confusion",
"points": 0,
"present": false
},
{
"input": "spo2_percent",
"value": 98,
"factor": "oxygen_low",
"points": 0,
"present": false
},
{
"value": 7.4,
"factor": "arterial_ph_lt_7_35",
"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.",
"arterial_ph": 7.4,
"albumin_g_dl": 4,
"spo2_percent": 98,
"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"respiratory_rate": 16,
"formula_expression": "SMART-COP (Charles 2008) = SBP<90 (2) + multilobar_cxr (1) + albumin<3.5 g/dL (1) + age-adjusted RR (1; age<=50 RR>=25, age>50 RR>=30) + HR>=125 (1) + confusion (1) + age-adjusted low oxygen (2; age<=50 PaO2<70 or SpO2<=93 or P/F<333; age>50 PaO2<60 or SpO2<=90 or P/F<250) + arterial_pH<7.35 (2; omitted pH scores 0); max 11; IRVS 0-2 low, 3-4 moderate, 5-6 high, >=7 very high"
}
]
}
}Tags
x402
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