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Glasgow Prognostic Score (GPS) Calculator — Forrest 2003
x402
Glasgow Prognostic Score (GPS) Calculator — Forrest 2003 is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).
Calculates the original Forrest 2003 Glasgow Prognostic Score (0–2) from serum CRP (mg/L) and albumin (g/L or g/dL)
Price / call$0.005
Success—
StatusUnknown
How this service works
Forrest 2003 original Glasgow Prognostic Score (GPS) from CRP in mg/L and albumin. Elevated CRP is >10 mg/L; hypoalbuminaemia is albumin <35 g/L. Assign 1 for CRP >10 and 1 for albumin <35, then sum: GPS 0 when CRP ≤10 and albumin ≥35; GPS 1 when CRP ≤10 and albumin <35 (isolated hypoalbuminaemia) or CRP >10 and albumin ≥35; GPS 2 when CRP >10 and albumin <35. Not mGPS, not hs-mGPS, not a cancer diagnosis or treatment order. magent does not assay CRP or albumin.
Output
Returns a GPS integer (0, 1, or 2) reflecting systemic inflammation-nutrition status: 0 = CRP ≤10 and albumin ≥35 (normal); 1 = isolated hypoalbuminaemia (albumin <35 with CRP ≤10) or elevated CRP alone (CRP >10 with albumin ≥35); 2 = both elevated CRP (>10 mg/L) and hypoalbuminaemia (albumin <35 g/L).
Example use cases
Oncology prognosis stratification
“My patient has a CRP of 22 mg/L and albumin of 31 g/L — can you compute their original Glasgow Prognostic Score so I can document their systemic inflammation risk?”
Normal inflammatory status confirmation
“Lab values just came back: CRP is 6 mg/L and albumin is 40 g/L. What is this patient's Forrest 2003 GPS score?”
Isolated hypoalbuminaemia GPS scoring
“Patient has CRP of 8 mg/L (not elevated) but albumin is 33 g/L — what GPS score does that give under the original Forrest 2003 criteria?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/gpsWhen to prefer
Use this endpoint when you need the original Forrest 2003 GPS (not mGPS or hs-mGPS) and have CRP in mg/L and albumin already measured from a lab. Prefer this over manual calculation to avoid unit-conversion errors (g/dL to g/L is handled automatically). Do not use this if you need mGPS, modified GPS, or if you still need to assay the labs — this endpoint only performs the scoring arithmetic.
Side effects
- Missing crp_mg_l parameter — required field; request will fail
- CRP value out of range (must be 0–500 mg/L)
- Albumin value out of range (g/L must be 10–60; g/dL must be 1–6)
- Both albumin_g_l and albumin_g_dl provided simultaneously — only one is allowed
- CRP provided in mg/dL instead of mg/L — common unit error leading to incorrect scoring
- Payment not attached or insufficient — endpoint requires x402 payment of $0.005 USDC
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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