# magent AP Prediction (Jin 2018 Early Diagnosis Score) > magent AP Prediction (Jin 2018 Early Diagnosis Score) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15). Computes the Jin 2018 integer prediction score for early diagnosis of acute pancreatitis in patients with serum lipase ≥3× ULN, returning a total score and risk-threshold flags. ## Facts - Endpoint: GET https://api.magentlab.com/api/calc/ap_prediction - Price: $0.005/call - Payment: x402 - Status: unknown - Last checked: 2026-09-15 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/magent-ap-prediction-jin-2018-early-diagnosis-score-0ccecb0f - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K_upgbtyWQ_Y5bQifmy_W Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability magent-ap-prediction-jin-2018-early-diagnosis-score-0ccecb0f ``` Example prompt: Run the Jin 2018 acute pancreatitis prediction score for a patient with 1 prior AP episode, cholelithiasis present, no abdominal surgery in the last 2 months, epigastric pain yes, worsening pain yes, pain duration less than 5 days, moderate pain severity (4-6/10), and serum lipase 15× ULN. ## When to prefer this Use this endpoint when you need a structured, reproducible integer score for early acute pancreatitis diagnosis specifically following the Jin 2018 model in patients with serum lipase ≥3× ULN. Prefer this over BISAP (mortality-focused), Ranson (24/48h severity), or Glasgow-Imrie (severity) when the clinical goal is early ED diagnosis confirmation rather than severity stratification or mortality prediction. Choose this when you already have caller-assigned clinical variables and a confirmed lipase fold value and want a score plus threshold flags, not an imaging order or clinical examination. ## Known failure modes - lipase_uln_fold below 3 returns invalid_ap_prediction — the model population requires confirmed lipase ≥3× ULN - missing required query parameters return a 4xx error - out-of-enum values for prior_ap_episodes, pain_severity, or pain_duration_days return validation errors - network or service errors return 5xx; retry is safe as endpoint is idempotent - payment failure (x402) if USDC balance is insufficient ## How this service works Jin 2018 ED model for early diagnosis of acute pancreatitis when lipase is at least 3x ULN. Integer points: prior episodes 0/1/2/3/4, cholelithiasis +2, abdominal surgery in 2 months -2, epigastric pain +2, worsening pain +1, pain duration >=5 days -1, severity mild 0 / moderate +2 / severe +3, lipase fold +0/+1/+2. Score max 14; jin2018_high_ppv if score>=8; jin2024_accuracy_cut if score>=6. Not a diagnosis. Not an imaging order. Not Ranson, BISAP, or Glasgow-Imrie. ## Output Returns the computed Jin 2018 integer total score (max 14) summed from all eight clinical parameters, plus boolean flags: jin2018_high_ppv (true if score ≥8) and jin2024_accuracy_cut (true if score ≥6). Returns an invalid_ap_prediction flag if lipase fold is below 3× ULN. Does not provide a diagnosis, imaging order, or treatment recommendation. ## Request schema (JSON Schema) ```json { "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": [ "prior_ap_episodes", "cholelithiasis", "abdominal_surgery_2mo", "epigastric_pain", "worsening_pain", "pain_duration_days", "pain_severity", "lipase_uln_fold" ], "properties": { "pain_severity": { "enum": [ "mild_0_3", "moderate_4_6", "severe_7_10" ], "type": "string", "description": "Caller-assigned pain-severity token (Jin 2018). mild_0_3 (0-3) scores 0; moderate_4_6 (4-6) scores +2; severe_7_10 (7-10) scores +3. magent does not assign a pain scale." }, "cholelithiasis": { "type": "boolean", "description": "Caller-assigned cholelithiasis (Jin 2018). true scores +2; false scores 0. magent does not read imaging." }, "worsening_pain": { "type": "boolean", "description": "Caller-assigned worsening pain (Jin 2018). true scores +1; false scores 0." }, "epigastric_pain": { "type": "boolean", "description": "Caller-assigned epigastric pain (Jin 2018). true scores +2; false scores 0. magent does not examine the patient." }, "lipase_uln_fold": { "type": "number", "description": "Serum lipase as a fold of the laboratory ULN. Population is lipase ≥3× ULN (Jin 2018). ≥3 and <10 scores 0; ≥10 and <20 scores +1; ≥20 scores +2. Below 3 is invalid_ap_prediction." }, "prior_ap_episodes": { "enum": [ "0", "1", "2", "3", "4_or_more" ], "type": "string", "description": "Caller-assigned prior acute-pancreatitis episode token (Jin 2018). 0 scores 0; 1 scores 1; 2 scores 2; 3 scores 3; 4_or_more scores 4. magent does not take a history." }, "pain_duration_days": { "enum": [ "lt_5", "gte_5" ], "type": "string", "description": "Caller-assigned pain-duration token (Jin … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/magent-ap-prediction-jin-2018-early-diagnosis-score-0ccecb0f/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from api.magentlab.com](https://www.zero.xyz/host/api.magentlab.com/llms.txt)