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magent NAFLD Activity Score (NAS) Calculator
x402
magent NAFLD Activity Score (NAS) Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Computes the Kleiner 2005 NAFLD Activity Score (NAS) by summing caller-assigned steatosis (0-3), lobular inflammation (0-3), and hepatocellular ballooning (0-2) scores, returning a total out of 8.
Price / call$0.005
Success—
StatusUnknown
How this service works
Kleiner 2005 NAFLD activity score (NAS): caller-assigned steatosis 0-3 (<5% / 5–33% / >33–66% / >66%), lobular_inflammation 0-3 (none / <2 foci per 200× / 2–4 / >4), ballooning 0-2 (none / few / many or prominent). magent sums only (max 8). Fibrosis is not in NAS. Kleiner 2005 reported NAS ≥5 correlated with NASH in that study; that is not a diagnostic algorithm. magent does not read histology and does not return NASH bands.
Output
Returns the summed NAFLD Activity Score (NAS) integer ranging from 0 to 8, calculated as steatosis + lobular_inflammation + ballooning. No NASH diagnosis, fibrosis stage, or histology interpretation is included in the response.
Example use cases
Research cohort NAS scoring
“I have a patient cohort and need to compute NAS scores. For this subject: steatosis 3 (>66%), lobular inflammation 2 (2–4 foci per 200x), and ballooning 2 (many/prominent). What's the total NAS?”
Clinical trial data entry support
“We're entering histology data for a NAFLD trial. This biopsy has steatosis grade 1 (5–33%), lobular inflammation 0 (none), and ballooning 0 (none). Can you give me the Kleiner 2005 NAS total?”
Bedside histology score review
“My pathologist read steatosis as 2, lobular inflammation as 3 (more than 4 foci per 200x), and ballooning as 1. What does that add up to on the NAS scale?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/nafld_nasWhen to prefer
Use this endpoint when you need a fast, reproducible computation of the Kleiner 2005 NAS from already-graded histology component scores. It is ideal for automating scoring in clinical research pipelines, EHR integrations, or trial data entry where a pathologist has already assigned the three component grades and you need the sum. Do not use it as a NASH diagnostic tool or to obtain a fibrosis stage — it strictly sums the three NAS components.
Side effects
- Missing required query parameters (steatosis, lobular_inflammation, or ballooning) result in a validation error
- Out-of-range integer values (e.g., steatosis >3, ballooning >2) may cause rejection or unexpected behavior
- Non-integer values for any parameter will fail schema validation
- Payment failure via x402 protocol results in a 402 response with no score returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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