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magent GELF Criteria Calculator
x402
magent GELF Criteria 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).
Applies the Brice 1997 GELF criteria to classify follicular lymphoma tumor burden as high or low based on eight clinician-assigned boolean factors
Price / call$0.005
Success—
StatusUnknown
How this service works
GELF criteria (Brice 1997). High tumor burden in follicular lymphoma if any of eight caller-assigned items: mass >7 cm; ≥3 nodes each >3 cm; B symptoms; spleen below umbilicus; compression; serous effusion; leukemic phase; cytopenia. Any yes is high_burden. Not a treatment order, not FLIPI, not IPI, not modified GELF. magent does not measure nodes, spleen, counts, or effusions.
Output
Returns a JSON object containing the overall tumor_burden classification ('high_burden' or 'low_burden'), the per-criterion breakdown showing which of the eight GELF factors were met, the full Brice 1997 citation including DOI and PMID, the formula expression, and a medical disclaimer clarifying that this is a deterministic calculation tool and not a medical device.
Example use cases
Automated FL tumor burden triage
“For my follicular lymphoma patient who has a mass larger than 7 cm but no other GELF criteria — no B symptoms, spleen not below umbilicus, no compression, no effusion, no leukemic phase, no cytopenia, and fewer than 3 nodes over 3 cm — run the GELF rule and tell me whether they qualify as high tumor burden.”
Watchful waiting eligibility check
“I want to know if this FL patient can be watched without treatment using the GELF criteria: no mass over 7 cm, three or more nodal sites each bigger than 3 cm, no B symptoms, no spleen below umbilicus, no compression, no effusion, not in leukemic phase, no cytopenia.”
Oncology agent pipeline classification
“Classify tumor burden for a follicular lymphoma case using the 1997 Brice GELF rule — the patient has B symptoms and a pleural effusion, but no mass over 7 cm, no three-node criterion, spleen is not below the umbilicus, no compression, not leukemic, and no cytopenia.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/gelfWhen to prefer
Use this endpoint when you need a deterministic, citable implementation of the Brice 1997 GELF criteria specifically — not FLIPI, not IPI, not modified GELF variants. It is ideal for autonomous oncology agents that have already gathered clinical findings from structured data and need to apply the published rule programmatically. Prefer this over a general LLM inference when auditability, citation fidelity, and reproducibility are required.
Side effects
- Missing any of the eight required boolean query parameters returns a validation error
- Non-boolean values for any parameter cause a schema rejection
- Network or payment authorization failures (x402) prevent the call from completing
- Truncated or malformed query strings may result in incorrect classification if defaults are silently applied
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/gelf",
"count": 2,
"items": [
{
"formula": "gelf",
"citation": {
"id": "brice-1997",
"doi": "10.1200/JCO.1997.15.3.1110",
"pmid": "9060552",
"title": "Comparison in low-tumor-burden follicular lymphomas between an initial no-treatment policy, prednimustine, or interferon alfa: a randomized study from the Groupe d'Etude des Lymphomes Folliculaires",
"source": "J Clin Oncol. 1997;15(3):1110-1117",
"authors": "Brice P, Bastion Y, Lepage E, Brousse N, Haïoun C, Moreau P, Straetmans N, Tilly H, Tabah I, Solal-Céligny P"
},
"criteria": [
{
"met": false,
"factor": "mass_gt_7cm"
},
{
"met": false,
"factor": "three_nodes_gt_3cm"
},
{
"met": false,
"factor": "b_symptoms"
},
{
"met": false,
"factor": "spleen_below_umbilicus"
},
{
"met": false,
"factor": "compression"
},
{
"met": false,
"factor": "effusion"
},
{
"met": false,
"factor": "leukemic_phase"
},
{
"met": false,
"factor": "cytopenia"
}
],
"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.",
"tumor_burden": "low_burden",
"formula_expression": "high tumor burden iff any of the 8 Brice 1997 GELF criteria"
},
{
"formula": "gelf",
"citation": {
"id": "brice-1997",
"doi": "10.1200/JCO.1997.15.3.1110",
"pmid": "9060552",
"title": "Comparison in low-tumor-burden follicular lymphomas between an initial no-treatment policy, prednimustine, or interferon alfa: a randomized study from the Groupe d'Etude des Lymphomes Folliculaires",
"source": "J Clin Oncol. 1997;15(3):1110-1117",
"authors": "Brice P, Bastion Y, Lepage E, Brousse N, Haïoun C, Moreau P, Straetmans N, Tilly H, Tabah I, Solal-Céligny P"
},
"criteria": [
{
"met": false,
"factor": "mass_gt_7cm"
},
{
"met": false,
"factor": "three_nodes_gt_3cm"
},
{
"met": false,
"factor": "b_symptoms"
},
{
"met": false,
"factor": "spleen_below_umbilicus"
},
{
"met": false,
"factor": "compression"
},
{
"met": false,
"factor": "effusion"
},
{
"met": false,
"factor": "leukemic_phase"
},
{
"met": false,
"factor": "cytopenia"
}
],
"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.",
"tumor_burden": "low_burden",
"formula_expression": "high tumor burden iff any of the 8 Brice 1997 GELF criteria"
}
]
}
}Tags
x402
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