{"uid":"cap_TU4IP_7lr8G7UvdPdS3ab","slug":"magent-race-scale-calculator-d80a6ddf","name":"magent RACE Scale Calculator","description":"Pérez de la Ossa 2014 Rapid Arterial oCclusion Evaluation (RACE) scale: facial_palsy 0 absent / 1 mild / 2 moderate to severe + arm_motor 0 normal to mild / 1 moderate / 2 severe + leg_motor same + gaze_deviation 0 absent / 1 present + cortical 0-2 (aphasia if right hemiparesis; agnosia if left). Max 9. lvo_suggested true iff score ≥5. Not a stroke diagnosis or transfer order and not a race-based equation. magent does not examine the patient.","url":"https://api.magentlab.com/api/calc/race","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":["facial_palsy","arm_motor","leg_motor","gaze_deviation","hemiparesis_side","cortical"],"properties":{"cortical":{"enum":[0,1,2],"type":"integer","description":"Caller-assigned Pérez de la Ossa 2014 cortical points (integer 0-2). Right hemiparesis: aphasia, close eyes and make a fist (0 both, 1 one, 2 neither). Left hemiparesis: agnosia, recognizes arm and impairment (0 both, 1 one, 2 neither). magent does not examine the patient."},"arm_motor":{"enum":[0,1,2],"type":"integer","description":"Caller-assigned Pérez de la Ossa 2014 RACE arm motor (integer 0-2): 0 normal to mild, 1 moderate, 2 severe. magent does not examine the patient."},"leg_motor":{"enum":[0,1,2],"type":"integer","description":"Caller-assigned Pérez de la Ossa 2014 RACE leg motor (integer 0-2): 0 normal to mild, 1 moderate, 2 severe. magent does not examine the patient."},"facial_palsy":{"enum":[0,1,2],"type":"integer","description":"Caller-assigned Pérez de la Ossa 2014 RACE facial palsy (integer 0-2): 0 absent, 1 mild, 2 moderate to severe. magent does not examine the patient."},"gaze_deviation":{"enum":[0,1],"type":"integer","description":"Caller-assigned Pérez de la Ossa 2014 RACE head and gaze deviation (integer 0-1): 0 absent, 1 present. magent does not examine the patient."},"hemiparesis_side":{"enum":["right","left"],"type":"string","description":"Caller-assigned hemiparesis side (right or left). Right scores cortical as aphasia (close eyes / make a fist). Left scores cortical as agnosia (recognizes arm and impairment). magent does not examine the patient."}}}},"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_dZ7RJSzhpn0rKeUCyb3pZ","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":"Computes the Rapid Arterial oCclusion Evaluation (RACE) score and indicates whether large vessel occlusion (LVO) is suggested, based on five neurological exam findings.","exampleAgentPrompt":"Calculate the RACE score for a patient with moderate-to-severe facial palsy (2), severe arm motor deficit (2), moderate leg motor deficit (1), gaze deviation present (1), right hemiparesis, and cortical aphasia score of 2 — does this suggest large vessel occlusion?","exampleUseCases":[{"title":"EMS prehospital LVO triage","prompt":"My paramedic crew is on scene with a suspected stroke patient: mild facial palsy (1), severe arm motor deficit (2), severe leg motor deficit (2), gaze deviation present (1), left hemiparesis, and agnosia score of 1. What's the RACE score and does it suggest LVO?"},{"title":"ED stroke team rapid screening","prompt":"Can you run the RACE scale for an ED patient who has no facial palsy (0), moderate arm weakness (1), normal leg (0), no gaze deviation (0), right hemiparesis, and an aphasia cortical score of 1? Tell me the total and whether LVO is flagged."},{"title":"Stroke protocol decision support","prompt":"Score this RACE scale: facial palsy 2, arm motor 2, leg motor 2, gaze deviation 1, right hemiparesis side, cortical 2 — I need to know if the score hits the LVO threshold of 5 or above."}],"resultDescription":"Returns the computed RACE total score (0–9) and a boolean lvo_suggested field that is true when the score is 5 or greater, indicating possible large vessel occlusion warranting further workup. Does not provide a stroke diagnosis or transfer recommendation.","failureModes":["Missing or invalid enum values for any of the six required query parameters returns a validation error","Providing out-of-range integers (e.g., cortical=3) results in schema rejection","Incorrect hemiparesis_side value causes cortical subscale to be misinterpreted","Network or HTTP 402 payment failure if x402 payment is not supplied or is insufficient"],"whenToPreferThis":"Use this endpoint when you need a standardized, validated RACE score computed server-side from clinician-supplied neurological exam findings, especially in agentic workflows where auditability and a structured LVO flag are needed. Prefer it over manual arithmetic when integrating stroke triage decisions into automated pipelines or documentation systems.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:53:48.232Z","isFirstParty":false}