# Oakland Score for Safe Discharge After Acute Lower GI Bleeding > Oakland Score for Safe Discharge After Acute Lower GI Bleeding 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 Oakland 2017 risk score (0–35) to determine whether a patient with acute lower gastrointestinal bleeding can be safely discharged from the emergency setting. ## Facts - Endpoint: GET https://api.magentlab.com/api/calc/oakland - 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/oakland-score-for-safe-discharge-after-acute-lower-gi-bleeding-5a511a28 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U2hkW9iF8DDkqODs8X_Bp 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 oakland-score-for-safe-discharge-after-acute-lower-gi-bleeding-5a511a28 ``` Example prompt: Compute the Oakland 2017 LGIB safe-discharge score for a 74-year-old male with a heart rate of 95 bpm, systolic BP of 115 mmHg, hemoglobin of 9.2 g/dL, no previous LGIB admission, and blood found on digital rectal exam. ## When to prefer this Use this endpoint when you need to programmatically compute the Oakland 2017 score for acute lower gastrointestinal bleeding and assess whether a patient meets the derivation-defined safe-discharge threshold (≤8 points). Prefer this over manual calculation when integrating into clinical decision-support workflows, EMR automation, or agent-driven triage pipelines. Note that this is a scoring aid, not a discharge order — clinical judgment is required. ## Known failure modes - Missing required parameter (age, sex, heart rate, systolic BP, previous_lgib_admission, or dre_blood) returns a validation error - Hemoglobin value below 3.6 g/dL (after conversion) is rejected with an out-of-range error - Providing both hemoglobin_g_dl and hemoglobin_g_l simultaneously is rejected - Age outside 16–120 or heart rate outside 30–220 fails input validation - Invalid enum for sex (not 'male' or 'female') returns a schema error ## How this service works Oakland 2017 risk score for safe discharge after acute lower gastrointestinal bleeding. Points from age (0-2), sex (male 1), previous LGIB admission (1), caller-assigned blood on digital rectal examination (1), heart rate (0-3), systolic BP (0-5), and hemoglobin g/dL (0-22); max 35. safe_discharge when score ≤8 (derivation cutoff, not a later US validation). Not a discharge order or LGIB diagnosis. magent does not examine the rectum or assay hemoglobin. Hemoglobin g/dL or g/L. ## Output Returns the total Oakland score (integer 0–35) and a safe_discharge flag (true when score ≤8, based on the original derivation cutoff). May also return individual point contributions per variable (age, sex, previous LGIB, DRE blood, heart rate, systolic BP, hemoglobin). ## 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": [ "age", "sex", "previous_lgib_admission", "dre_blood", "heart_rate_bpm", "systolic_mm_hg" ], "properties": { "age": { "type": "integer", "description": "Age in years (integer 16-120). Oakland 2017: ≤39 → 0, 40-69 → 1, ≥70 → 2." }, "sex": { "enum": [ "female", "male" ], "type": "string", "description": "Sex as assigned by the caller. female scores 0; male scores 1." }, "dre_blood": { "type": "boolean", "description": "Blood on digital rectal examination as assigned by the caller (Oakland 2017). true scores 1. magent does not examine the rectum." }, "heart_rate_bpm": { "type": "integer", "description": "Heart rate in beats per minute (integer 30-220). Oakland 2017: <70 → 0, 70-89 → 1, 90-109 → 2, ≥110 → 3." }, "hemoglobin_g_l": { "type": "number", "description": "Hemoglobin in g/L (30-220). Converted as hemoglobin_g_dl = hemoglobin_g_l / 10. Provide this or hemoglobin_g_dl, not both. Values <3.6 g/dL after conversion are rejected." }, "systolic_mm_hg": { "type": "number", "description": "Systolic blood pressure in mm Hg (50-250). Oakland 2017: 50-89 → 5, 90-119 → 4, 120-129 → 3, 130-159 → 2, ≥160 → 0. magent does not read a blood pressure." }, "hemoglobin_g_dl": { "type": "number", "description": "Hemoglobin in g/dL (3-22). Provide this or hemoglobin_g_l, not both. Oakland 2017 bands start at 3.6 g/dL: 3.6-6.9 → 22, 7.0-8.9 → 17, 9.0-10.9 → 13, 11.0-12.9 → 8, 13.0-15.9 → 4, ≥16.0 → 0. Values <3.6 after conversion are rejected. magent does not assay hemoglobin." }, "previous_lgib_admission": { "type": "boolean", "description": "Previous admission for lower GI bleeding as assigned by the caller (Oakland 2017). true scores 1." … (truncated) ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "path": "/api/calc/oakland", "count": 2, "items": [ { "sex": "female", "score": 0, "formula": "oakland", "citation": { "id": "oakland-2017", "doi": "10.1016/s2468-1253(17)30150-4", "pmid": "28651935", "title": "Derivation and validation of a novel risk score for safe discharge after acute lower gastrointestinal bleeding: a modelling study", "source": "Lancet Gastroenterol Hepatol. 2017;2(9):635-643", "authors": "Oakland K, Jairath V, Uberoi R, Guy R, Ayaru L, Mortensen N, Murphy MF, Collins GS" }, "age_years": 35, "dre_blood": false, "max_score": 35, "components": [ { "value": 35, "factor": "age", "points": 0, "present": false }, { "value": "female", "factor": "sex", "points": 0, "present": false }, { "factor": "previous_lgib_admission", "points": 0, "present": false }, { "factor": "dre_blood", "points": 0, "present": false }, { "value": 65, "factor": "heart_rate", "points": 0, "present": false }, { "value": 165, "factor": "systolic", "points": 0, "present": false }, { "value": 16.5, "factor": "hemoglobin", "points": 0, "present": false } ], "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.", "oakland_band": "safe_discharge", "heart_rate_bpm": 65, "systolic_mm_hg": 165, "hemoglobin_g_dl": 16.5, "formula_expression": "Oakland = age (≤39:0, 40-69:1, ≥70:2) + male 1 + previous_lgib_admission 1 + dre_blood 1 + HR (<70:0, 70-89:1, 90-109:2, ≥110:3) + SBP (50-89:5, 90-119:4, 120-129:3, 130-159:2, ≥160:0) + Hb g/dL (3.6-6.9:22, 7.0-8.9:17, 9.0-10.9:13, 11.0-12.9:8, 13.0-15.9:4, ≥16.0:0); Oakland 2017 derivation; max 35; safe_discharge ≤8", "previous_lgib_admission": false }, { "sex": "female", "score": 0, "formula": "oakland", "citation": { "id": "oakland-2017", "doi": "10.1016/s2468-1253(17)30150-4", "pmid": "28651935", "title": "Derivation and validation of a novel risk score for safe discharge after acute lower gastrointestinal bleeding: a modelling study", "source": "Lancet Gastroenterol Hepatol. 2017;2(9): … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/oakland-score-for-safe-discharge-after-acute-lower-gi-bleeding-5a511a28/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)