{"uid":"cap_gUzbFUAxWx20Eb26WH7Lp","slug":"magent-rosier-score-calculator-dc5a4ba9","name":"magent ROSIER Score Calculator","description":"Nor 2005 ROSIER: seven caller-assigned flags. Loss of consciousness or syncope −1, seizure −1; new acute-onset (or on awakening) asymmetric face, arm, or leg weakness, speech disturbance, and visual field defect +1 each. Range −2 to +5. stroke_more_likely if score > 0. Score ≤ 0 does not exclude stroke. Not a diagnosis, not NIHSS, and not a medical device. magent does not examine the patient or collect a time of onset.","url":"https://api.magentlab.com/api/calc/rosier","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":["loss_of_consciousness_or_syncope","seizure","asymmetric_face_weakness","asymmetric_arm_weakness","asymmetric_leg_weakness","speech_disturbance","visual_field_defect"],"properties":{"seizure":{"type":"boolean","description":"History of seizure activity (Nor 2005, −1 if true). true or false as assigned by the caller. magent does not examine the patient."},"speech_disturbance":{"type":"boolean","description":"New acute-onset (or on awakening) speech disturbance (Nor 2005, +1 if true). true or false as assigned by the caller. magent does not examine the patient."},"visual_field_defect":{"type":"boolean","description":"New acute-onset (or on awakening) visual field defect (Nor 2005, +1 if true). true or false as assigned by the caller. magent does not examine the patient."},"asymmetric_arm_weakness":{"type":"boolean","description":"New acute-onset (or on awakening) asymmetric arm weakness (Nor 2005, +1 if true). true or false as assigned by the caller. magent does not examine the patient."},"asymmetric_leg_weakness":{"type":"boolean","description":"New acute-onset (or on awakening) asymmetric leg weakness (Nor 2005, +1 if true). true or false as assigned by the caller. magent does not examine the patient."},"asymmetric_face_weakness":{"type":"boolean","description":"New acute-onset (or on awakening) asymmetric facial weakness (Nor 2005, +1 if true). true or false as assigned by the caller. magent does not examine the patient."},"loss_of_consciousness_or_syncope":{"type":"boolean","description":"History of loss of consciousness or syncope (Nor 2005, −1 if true). true or false as assigned by the caller. magent does not examine the patient or collect a time of onset."}}}},"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_L77eEKVfIBn2XPZ5mfGch","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 Recognition of Stroke in the Emergency Room (ROSIER) score (Nor 2005) from seven caller-assigned boolean flags to estimate stroke likelihood","exampleAgentPrompt":"Calculate the ROSIER score for a patient who had no loss of consciousness, no seizure, has new asymmetric right arm weakness, new asymmetric leg weakness, new speech disturbance, no facial weakness, and no visual field defect — tell me whether stroke is more likely.","exampleUseCases":[{"title":"Emergency triage stroke screening","prompt":"I have a patient in the ED with sudden onset right-sided arm and leg weakness and slurred speech, no seizure, no syncope, no facial droop, and no visual field changes — what's their ROSIER score and is stroke more likely?"},{"title":"Clinical documentation support tool","prompt":"Can you run the ROSIER score for a patient presenting with new facial weakness on the left, no arm or leg weakness, no speech problem, no visual field defect, no syncope, and a witnessed seizure before arrival?"},{"title":"Automated neurology referral trigger","prompt":"Check the ROSIER score for a patient who woke up with facial weakness, arm weakness, and a visual field defect but no leg weakness, no speech disturbance, no syncope, and no seizure history — does the score suggest stroke is more likely?"}],"resultDescription":"Returns the computed ROSIER total score (integer ranging from −2 to +5) and a stroke_more_likely flag (true if score > 0, false if ≤ 0), along with the individual point contributions of each input flag","failureModes":["Missing any of the seven required boolean query parameters returns a validation error","Passing non-boolean values for flags causes a schema validation failure","Score ≤ 0 does not exclude stroke — the endpoint returns a result but the caller must not interpret it as ruling out stroke","Endpoint does not collect or validate time of onset — caller must supply clinically determined flags"],"whenToPreferThis":"Use this endpoint when you need a fast, reproducible computation of the ROSIER stroke-screening score from caller-supplied clinical flags; prefer it over manual calculation when integrating stroke triage logic into an automated clinical workflow, EHR augmentation, or emergency decision support agent where the seven ROSIER boolean inputs have already been assessed by a clinician","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:50:30.009Z","isFirstParty":false}