# THRIVE Stroke Outcome Score Calculator > THRIVE Stroke Outcome Score Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-10). Computes the THRIVE (Totaled Health Risks in Vascular Events) score from age, NIHSS, and chronic disease factors to estimate 90-day functional outcome and mortality risk after ischemic stroke. ## Facts - Endpoint: GET https://api.magentlab.com/api/calc/thrive?utm_source=zero.xyz - Price: $0.005/call - Payment: x402 - Status: unknown - Last checked: 2026-10-10 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/thrive-stroke-outcome-score-calculator-86a2d611 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0evau1nn929m76qQwnLzx 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 thrive-stroke-outcome-score-calculator-86a2d611 ``` Example prompt: Calculate the THRIVE stroke score for a 74-year-old patient with a NIHSS of 15, who has hypertension and atrial fibrillation but no diabetes — what's their 90-day outcome risk band? ## When to prefer this Use this endpoint when you need a validated, published clinical score (Flint 2010 AJNR) for 90-day stroke outcome stratification based on age, NIHSS, and chronic comorbidities. Prefer it over generic LLM-based prognosis when you need reproducible, citation-backed risk bands with published outcome percentages. Note: this is not a treatment recommendation and does not replace clinician judgment or NIHSS examination. ## Known failure modes - Missing required parameters (age, nihss, hypertension, diabetes, atrial_fibrillation) returns validation error - Age outside 18–120 range rejected - NIHSS outside 0–42 range rejected - Boolean fields supplied as non-boolean strings may cause parsing errors - Payment failure (x402) if USDC not available or insufficient balance ## How this service works Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402. ## Output Returns the computed THRIVE total score (0–9), the corresponding risk band (low 0–2, moderate 3–5, high 6–9), and published 90-day outcome statistics including the probability of achieving modified Rankin Scale 0–2 (functional independence) and 90-day mortality, based on the Flint 2010 AJNR derivation cohort. ## 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", "nihss", "hypertension", "diabetes", "atrial_fibrillation" ], "properties": { "age": { "type": "integer", "description": "Age in years (18-120). Trichotomized: ≤59 scores 0; 60-79 scores 1; ≥80 scores 2 (1 point per age level)." }, "nihss": { "type": "integer", "description": "Caller-assigned NIH Stroke Scale total (integer 0-42). Trichotomized: ≤10 scores 0; 11-20 scores 2; ≥21 scores 4 (2 points per NIHSS level). magent does not examine the patient." }, "diabetes": { "type": "boolean", "description": "Diabetes mellitus on the chronic disease scale (CDS). true scores 1; false scores 0." }, "hypertension": { "type": "boolean", "description": "Hypertension on the chronic disease scale (CDS). true scores 1; false scores 0." }, "atrial_fibrillation": { "type": "boolean", "description": "Atrial fibrillation on the chronic disease scale (CDS). true scores 1; false scores 0." } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object" } } } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "path": "/api/calc/thrive", "count": 2, "items": [ { "cds": 1, "nihss": 12, "score": 4, "formula": "thrive", "citation": { "id": "flint-2010", "doi": "10.3174/ajnr.A2050", "pmid": "20223889", "title": "Predicting long-term outcome after endovascular stroke treatment: the totaled health risks in vascular events score", "source": "AJNR Am J Neuroradiol. 2010;31(7):1192-1196", "authors": "Flint AC, Cullen SP, Faigeles BG, Rao VA" }, "age_years": 70, "max_score": 9, "components": [ { "value": 70, "factor": "age", "points": 1, "present": true }, { "value": 12, "factor": "nihss", "points": 2, "present": true }, { "factor": "hypertension", "points": 1, "present": true }, { "factor": "diabetes", "points": 0, "present": false }, { "factor": "atrial_fibrillation", "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.", "thrive_band": "moderate", "mortality_percent": 30.1, "formula_expression": "THRIVE = trichotomized_age + trichotomized_nihss + CDS; age <=59 0, 60-79 1, >=80 2; NIHSS <=10 0, 11-20 2, >=21 4; hypertension, diabetes, atrial fibrillation 1 each (CDS 0-3); bands 0-2 / 3-5 / 6-9; max 9", "good_outcome_percent": 43.5 }, { "cds": 1, "nihss": 12, "score": 4, "formula": "thrive", "citation": { "id": "flint-2010", "doi": "10.3174/ajnr.A2050", "pmid": "20223889", "title": "Predicting long-term outcome after endovascular stroke treatment: the totaled health risks in vascular events score", "source": "AJNR Am J Neuroradiol. 2010;31(7):1192-1196", "authors": "Flint AC, Cullen SP, Faigeles BG, Rao VA" }, "age_years": 70, "max_score": 9, "components": [ { "value": 70, "factor": "age", "points": 1, "present": true }, { "value": 12, "factor": "nihss", "points": 2, "present": true }, { "factor": "hypertension", "points": 1, "present": true }, { "factor": "diabetes", "points": 0, "present": false }, { "factor" … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/thrive-stroke-outcome-score-calculator-86a2d611/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)