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NAFLD Fibrosis Score Calculator (Angulo 2007)
x402
NAFLD Fibrosis Score Calculator (Angulo 2007) 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 Angulo 2007 NAFLD fibrosis score from age, BMI, IFG/diabetes status, AST, ALT, platelets, and albumin to estimate likelihood of advanced hepatic fibrosis.
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 calculated Angulo 2007 NAFLD fibrosis score (NFS) as a numeric value, along with an interpretive category (e.g., low/indeterminate/high probability of advanced fibrosis) based on published cut-points, plus citation metadata. No diagnosis is rendered.
Example use cases
Pre-referral hepatology triage
“Before referring this NAFLD patient to hepatology, calculate their fibrosis score — they're 61 years old, BMI 34.5, has type 2 diabetes, AST 74 U/L, ALT 88 U/L, platelets 142 ×10⁹/L, and albumin 3.8 g/dL.”
Population health fibrosis screening
“Screen this metabolic clinic patient for advanced liver fibrosis using the Angulo NFS formula: age 47, BMI 29.8, no IFG or diabetes, AST 42 U/L, ALT 65 U/L, platelets 220 ×10⁹/L, albumin 44 g/L.”
Longitudinal treatment monitoring
“Compare today's NAFLD fibrosis score to baseline for a 50-year-old patient — BMI now 27.1 after weight loss, still has impaired fasting glucose, AST 35 U/L, ALT 40 U/L, platelets 195 ×10⁹/L, albumin 4.3 g/dL.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/nafld_fibrosis?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the specific Angulo 2007 NAFLD fibrosis score (NFS) — distinct from FIB-4, APRI, or BARD score. Prefer this when clinical workflows or guidelines reference NFS by name, or when you need the published seven-variable formula with albumin. Choose APRI endpoint on the same platform if only AST and platelets are available.
Side effects
- Missing required parameter (age, BMI, IFG/diabetes, AST, ALT, platelets) returns 400 error
- Albumin provided in both g/dL and g/L simultaneously returns validation error
- Values outside physiological ranges (e.g., BMI <10 or >80, age <18) are rejected
- Payment not included or invalid x402 header results in 402 Payment Required
- Network timeout returns no result; retry is safe as endpoint is idempotent
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/nafld_fibrosis",
"count": 2,
"items": [
{
"nfs": -0.125,
"alt_u_l": 40,
"ast_u_l": 40,
"formula": "nafld_fibrosis",
"citation": {
"id": "angulo-2007",
"doi": "10.1002/hep.21496",
"title": "The NAFLD fibrosis score: a noninvasive system that identifies liver fibrosis in patients with NAFLD",
"source": "Hepatology. 2007;45(4):846-854",
"authors": "Angulo P, Hui JM, Marchesini G, et al."
},
"age_years": 50,
"bmi_kg_m2": 30,
"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.",
"angulo_band": "indeterminate",
"albumin_g_dl": 4,
"ast_alt_ratio": 1,
"ifg_or_diabetes": true,
"platelets_10e9_l": 200,
"formula_expression": "NFS = -1.675 + 0.037*age + 0.094*BMI + 1.13*IFG/diabetes + 0.99*(AST/ALT) - 0.013*platelets - 0.66*albumin"
},
{
"nfs": -0.125,
"alt_u_l": 40,
"ast_u_l": 40,
"formula": "nafld_fibrosis",
"citation": {
"id": "angulo-2007",
"doi": "10.1002/hep.21496",
"title": "The NAFLD fibrosis score: a noninvasive system that identifies liver fibrosis in patients with NAFLD",
"source": "Hepatology. 2007;45(4):846-854",
"authors": "Angulo P, Hui JM, Marchesini G, et al."
},
"age_years": 50,
"bmi_kg_m2": 30,
"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.",
"angulo_band": "indeterminate",
"albumin_g_dl": 4,
"ast_alt_ratio": 1,
"ifg_or_diabetes": true,
"platelets_10e9_l": 200,
"formula_expression": "NFS = -1.675 + 0.037*age + 0.094*BMI + 1.13*IFG/diabetes + 0.99*(AST/ALT) - 0.013*platelets - 0.66*albumin"
}
]
}
}Tags
x402
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