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GALAD Score Calculator (Johnson 2014)
x402
GALAD Score Calculator (Johnson 2014) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Computes the Johnson 2014 GALAD linear predictor score for hepatocellular carcinoma risk from age, sex, AFP, AFP-L3, and DCP biomarker values.
Price / call$0.005
Success—
StatusUnknown
How this service works
Johnson 2014 GALAD linear predictor from age, sex, AFP ng/mL, AFP-L3 percent, and DCP ng/mL. galad_score = -10.08 + 0.09*age + 1.67*sex + 2.34*log10(AFP) + 0.04*AFP-L3 + 1.33*log10(DCP); sex is 1 if male else 0. Returns galad_score to 2 decimals. Not an HCC diagnosis, listing protocol, probability, or Johnson 2015 ALBI. DCP is ng/mL, not mAU/mL.
Output
Returns a single GALAD score rounded to 2 decimal places, computed as: -10.08 + 0.09×age + 1.67×sex + 2.34×log10(AFP ng/mL) + 0.04×AFP-L3% + 1.33×log10(DCP ng/mL). The score is a continuous linear predictor value — not a probability, diagnosis, or listing protocol recommendation.
Example use cases
HCC surveillance biomarker scoring
“I have a 63-year-old male patient with chronic hepatitis B — his AFP is 120 ng/mL, AFP-L3 is 22 percent, and DCP is 150 ng/mL. Can you calculate his GALAD score?”
Automated lab result enrichment
“For this female patient aged 51, her latest labs show AFP 8.4 ng/mL, AFP-L3 5 percent, and DCP 2.1 ng/mL — what is her Johnson 2014 GALAD score?”
Comparing serial GALAD scores over time
“Calculate the GALAD score for a 70-year-old male with AFP 300 ng/mL, AFP-L3 35 percent, and DCP 500 ng/mL so I can compare it against his score from last quarter.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/galadWhen to prefer
Use this endpoint when you need to compute the exact Johnson 2014 GALAD linear predictor score using AFP (ng/mL), AFP-L3 (%), and DCP (ng/mL) inputs. Prefer this over manual calculation to avoid unit-conversion mistakes and to ensure the correct formula variant (Johnson 2014, not Johnson 2015 ALBI variant) is applied. Not appropriate for obtaining a diagnostic probability, ALBI grade, or listing protocol decision.
Side effects
- Missing required query parameters (age, sex, afp_ng_ml, afp_l3_percent, dcp_ng_ml) returns a validation error
- AFP or DCP values outside valid range (0.1–100000 ng/mL) may be rejected or clamped
- Age below 18 is clamped to 18 per implementation
- DCP provided in mAU/mL instead of ng/mL produces incorrect score without warning (no unit conversion performed)
- Payment not included or insufficient USDC results in HTTP 402 response
- AFP-L3 outside 0–100 percent range may cause unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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