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Magent AIR Score Calculator
x402
Magent AIR 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).
Calculates the Andersson 2008 Appendicitis Inflammatory Response (AIR) score (0–12) from clinical and lab inputs to risk-stratify suspected appendicitis
Price / call$0.005
Success—
StatusUnknown
How this service works
Andersson 2008 appendicitis inflammatory response (AIR) score from caller-assigned vomiting, right-iliac-fossa pain, rebound or guarding (none/light/medium/strong), temperature, WBC, neutrophil percent, and CRP in mg/L (max 12). Bands 0-4, 5-8, and 9-12. Deterministic published score with citation; not a diagnosis or operating-room protocol. magent does not examine the abdomen.
Output
Returns the total AIR score (integer 0–12), the risk band it falls into (low 0–4, intermediate 5–8, high 9–12), and a citation to the Andersson 2008 publication. Does not provide a diagnosis or surgical recommendation.
Example use cases
ED triage for suspected appendicitis
“I have a patient in the ED with right lower quadrant pain, no vomiting, light guarding, temperature 38.2°C, WBC 11.5 thousand per µL, neutrophil percent 72%, and CRP 18 mg/L — can you calculate their AIR score and tell me which risk band they fall into?”
Pre-surgical risk stratification
“Before deciding on surgical referral, calculate the AIR score for this patient: vomiting present, right iliac fossa pain yes, strong rebound tenderness, temperature 39.1°C, WBC 16.8k/µL, neutrophils 88%, CRP 62 mg/L.”
Automated lab-result scoring
“I just got back lab results — WBC 9.8 ×10³/µL, neutrophil percent 65%, CRP 7 mg/L, temperature 37.4°C, no vomiting, no right iliac fossa pain, no rebound or guarding. Run the Andersson AIR score for me.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/airWhen to prefer
Use this endpoint when you need a deterministic, citable implementation of the Andersson 2008 AIR score specifically — not a generic appendicitis risk heuristic. Prefer it over manual calculation to avoid arithmetic error and to get structured band classification. It is not a substitute for clinical examination or imaging, and the caller must supply the rebound/guarding severity since this service cannot examine the patient.
Side effects
- Missing required parameters (vomiting, rif_pain, rebound_or_guarding, temperature_c, neutrophil_percent, crp_mg_l) returns a validation error
- Neither wbc_k_ul nor wbc_ul provided may cause an error or default scoring
- Temperature out of range (30–45°C) rejected as invalid
- CRP value provided in mg/dL instead of mg/L produces incorrect score silently
- neutrophil_percent or crp_mg_l outside valid ranges (0–100, 0–500) may be rejected
- Payment failure (x402) if insufficient USDC balance
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/air",
"count": 2,
"items": [
{
"score": 0,
"wbc_ul": 8000,
"formula": "air",
"air_band": "0-4",
"citation": {
"id": "andersson-2008",
"doi": "10.1007/s00268-008-9649-y",
"pmid": "18553045",
"title": "The appendicitis inflammatory response score: a tool for the diagnosis of acute appendicitis that outperforms the Alvarado score",
"source": "World J Surg. 2008;32(8):1843-1849",
"authors": "Andersson M, Andersson RE"
},
"crp_mg_l": 5,
"rif_pain": false,
"vomiting": false,
"max_score": 12,
"components": [
{
"factor": "vomiting",
"points": 0,
"present": false
},
{
"factor": "rif_pain",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "rebound_or_guarding",
"points": 0,
"present": false
},
{
"value": 37,
"factor": "temperature_c",
"points": 0,
"present": false
},
{
"value": 8000,
"factor": "wbc",
"points": 0,
"present": false
},
{
"value": 60,
"factor": "neutrophil_percent",
"points": 0,
"present": false
},
{
"value": 5,
"factor": "crp_mg_l",
"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.",
"wbc_10e9_l": 8,
"temperature_c": 37,
"formula_expression": "AIR = vomiting + rif_pain + rebound_or_guarding (none 0, light 1, medium 2, strong 3) + (temperature_c >= 38.5) + WBC 10^9/L (<10 → 0; 10.0–14.9 → 1; ≥15.0 → 2) + neutrophil_percent (<70 → 0; 70–84 → 1; ≥85 → 2) + crp_mg_l (<10 → 0; 10–49 → 1; ≥50 → 2); max 12; bands 0-4 / 5-8 / 9-12",
"neutrophil_percent": 60,
"rebound_or_guarding": "none"
},
{
"score": 0,
"wbc_ul": 8000,
"formula": "air",
"air_band": "0-4",
"citation": {
"id": "andersson-2008",
"doi": "10.1007/s00268-008-9649-y",
"pmid": "18553045",
"title": "The appendicitis inflammatory response score: a tool for the diagnosis of acute appendicitis that outperforms the Alvarado score",
"source": "World J Surg. 2008;32(8):1843-1849",
"authors": "Andersson M, Andersson RE"
},
"crp_mg_l": 5,
"rif_pain": false,
"vomiting": false,
"max_score": 12,
"components": [
{
"factor": "vomiting",
"points": 0,
"present": false
},
{
"factor": "rif_pain",
"points": 0,
"present": false
},
{
"value": "none",
"factor": "rebound_or_guarding",
"points": 0,
"present": false
},
{
"value": 37,
"factor": "temperature_c",
"points": 0,
"present": false
},
{
"value": 8000,
"factor": "wbc",
"points": 0,
"present": false
},
{
"value": 60,
"factor": "neutrophil_percent",
"points": 0,
"present": false
},
{
"value": 5,
"factor": "crp_mg_l",
"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.",
"wbc_10e9_l": 8,
"temperature_c": 37,
"formula_expression": "AIR = vomiting + rif_pain + rebound_or_guarding (none 0, light 1, medium 2, strong 3) + (temperature_c >= 38.5) + WBC 10^9/L (<10 → 0; 10.0–14.9 → 1; ≥15.0 → 2) + neutrophil_percent (<70 → 0; 70–84 → 1; ≥85 → 2) + crp_mg_l (<10 → 0; 10–49 → 1; ≥50 → 2); max 12; bands 0-4 / 5-8 / 9-12",
"neutrophil_percent": 60,
"rebound_or_guarding": "none"
}
]
}
}Tags
x402
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