{"uid":"cap_P8qxfN2rOOvQ0_eDxlvli","slug":"mgfa-clinical-classification-lookup-jaretzki-2000-57612809","name":"MGFA Clinical Classification Lookup (Jaretzki 2000)","description":"Jaretzki 2000 MGFA Clinical Classification (Table 1). Caller-assigned class I, IIa, IIb, IIIa, IIIb, IVa, IVb, or V with the published description. Class V is intubation except routine postoperative management. A feeding tube without intubation is class IVb. Not QMG, not MG-ADL, not Osserman, and not an outcome measure (QMG is separate). magent does not examine the patient. Not a medical device.","url":"https://api.magentlab.com/api/calc/mgfa","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":["mgfa_class"],"properties":{"mgfa_class":{"type":"string","description":"Jaretzki 2000 Table 1 MGFA Clinical Classification as assigned by the caller: I, IIa, IIb, IIIa, IIIb, IVa, IVb, or V (case-sensitive; reject i, 1, II, IIA). Class I ocular only; II mild, III moderate, IV severe generalized with a = limb/axial and b = oropharyngeal/respiratory; IVb includes feeding tube without intubation; V is intubation except routine postoperative management. 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_Ai1N0Tpuek-U7c9dBnY_w","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":"Returns the published Jaretzki 2000 MGFA Clinical Classification description for a caller-assigned class (I, IIa, IIb, IIIa, IIIb, IVa, IVb, or V)","exampleAgentPrompt":"I need to look up the official Jaretzki 2000 MGFA Clinical Classification description for class IIb — can you retrieve the published definition from Table 1?","exampleUseCases":[{"title":"MG severity documentation in EHR","prompt":"The neurologist assigned this patient MGFA class IIIb — can you pull the official published description so I can paste it into the clinical note?"},{"title":"Automated MG clinical trial eligibility check","prompt":"We're enrolling patients with MGFA class IVa or IVb — retrieve the official definitions for both classes so the trial eligibility logic can reference the exact Jaretzki 2000 criteria."},{"title":"Patient education on MG severity scale","prompt":"The patient was told they're class IIa — can you look up what that means in the MGFA classification system so we can explain it to them in plain terms?"}],"resultDescription":"Returns the official Jaretzki 2000 MGFA Clinical Classification text for the specified class from Table 1, including the clinical description of that severity level (e.g. for class V: intubation for breathing except routine postoperative management; for class IVb: feeding tube without intubation).","failureModes":["Invalid or unrecognized mgfa_class value (e.g. lowercase 'i', numeric '1', or unparseable string) returns an error — only exact case-sensitive codes I, IIa, IIb, IIIa, IIIb, IVa, IVb, V are accepted","Payment required (x402) if valid USDC payment header is missing","Network timeout or server unavailability"],"whenToPreferThis":"Use this endpoint when an AI agent or clinical workflow needs the authoritative published text of the MGFA Clinical Classification (Jaretzki 2000, Table 1) for a specific class assigned by a clinician. It is not a scoring tool (does not compute QMG, MG-ADL, or Osserman), does not examine patients, and is not a medical device — it is a reference lookup for structured documentation and decision support.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:57:56.552Z","isFirstParty":false}