{"uid":"cap_8fxSZDZz4xoc3kvwyqmnb","slug":"glasgow-prognostic-score-gps-calculator-forrest-2003-1efc2a76","name":"Glasgow Prognostic Score (GPS) Calculator — Forrest 2003","description":"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.","url":"https://api.magentlab.com/api/calc/gps","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["crp_mg_l"],"properties":{"crp_mg_l":{"type":"number","description":"C-reactive protein in mg/L (0-500), not mg/dL. Forrest 2003 elevated CRP is >10 mg/L. CRP = 10 is not elevated. magent does not assay CRP."},"albumin_g_l":{"type":"number","description":"Serum albumin in g/L (10-60). Provide this or albumin_g_dl, not both. Forrest 2003 hypoalbuminaemia is <35 g/L (35 is not low). Isolated hypoalbuminaemia scores GPS 1. magent does not assay albumin."},"albumin_g_dl":{"type":"number","description":"Serum albumin in g/dL (1-6). Converted as g/L = g/dL × 10. Provide this or albumin_g_l, not both."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nAxKJYbZWQx9PzoBHsSv4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the original Forrest 2003 Glasgow Prognostic Score (0–2) from serum CRP (mg/L) and albumin (g/L or g/dL)","exampleAgentPrompt":"Calculate the original Forrest 2003 Glasgow Prognostic Score for a patient with a CRP of 18 mg/L and serum albumin of 28 g/L.","exampleUseCases":[{"title":"Oncology prognosis stratification","prompt":"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?"},{"title":"Normal inflammatory status confirmation","prompt":"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?"},{"title":"Isolated hypoalbuminaemia GPS scoring","prompt":"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?"}],"resultDescription":"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).","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T01:03:52.145Z","isFirstParty":false}