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Mazzaferro Up-to-Seven HCC Criterion Calculator
x402
Mazzaferro Up-to-Seven HCC Criterion Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Evaluates whether a hepatocellular carcinoma (HCC) patient meets the Mazzaferro 2009 Up-to-Seven criterion by checking if tumor_count + largest_cm ≤ 7 and microvascular invasion is absent.
Price / call$0.005
Success—
StatusUnknown
How this service works
Mazzaferro 2009 Up-to-seven: meets_up_to_seven is true iff tumor_count plus largest_cm is 7 or less and microvascular_invasion is false. Returns the boolean and size_number_sum, not a 5-year survival percentage. Pathology/explant-style inputs as assigned by the caller; magent does not interpret imaging or histology. Not Milan, not Metroticket 2.0 AFP criteria, not a contour calculator, not a medical device, and not a transplant listing.
Output
Returns a boolean meets_up_to_seven (true if tumor_count + largest_cm ≤ 7 AND microvascular_invasion is false) and the numeric size_number_sum (tumor_count + largest_cm).
Example use cases
Post-resection pathology Up-to-Seven check
“A patient had their HCC resected and pathology shows 2 nodules, the largest measuring 4.8 cm, with microvascular invasion confirmed — do they meet Up-to-Seven, and what is the size-number sum?”
Transplant candidate explant review
“I'm reviewing an explant report: 4 HCC tumors, largest is 2.5 cm, no microvascular invasion found. Run the Mazzaferro Up-to-Seven calculation and tell me if they meet criteria.”
Borderline case threshold check
“Does an HCC patient with 5 nodules, largest tumor 2.0 cm, and no microvascular invasion fall within Up-to-Seven? I need the boolean result and the total size-number sum.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/up_to_7When to prefer
Use this endpoint when you need a programmatic, rule-based check of the Mazzaferro 2009 Up-to-Seven criterion given caller-assigned pathology or explant values. Prefer this over general HCC staging tools when you specifically need the Up-to-Seven boolean and size_number_sum — not Milan criteria, Metroticket 2.0, AFP-based criteria, or survival probability estimates.
Side effects
- Missing required query parameters (tumor_count, largest_cm, microvascular_invasion) returns a 400 error
- tumor_count outside integer range 1-20 may be rejected
- largest_cm outside range 0.1-30 may be rejected
- Incorrect type for microvascular_invasion (non-boolean) causes validation failure
- Payment not provided or insufficient USDC results in 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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