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magent IVT Contraindications Checker (Powers 2018 Table 6 Class III: Harm)
x402
magent IVT Contraindications Checker (Powers 2018 Table 6 Class III: Harm) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Evaluates 15 caller-assigned boolean flags to determine whether IV alteplase (IVT) is contraindicated per Powers 2018 AHA/ASA Table 6 Class III: Harm criteria
Price / call$0.005
Success—
StatusUnknown
How this service works
Powers 2018 Table 6 Class III Harm IVT. contraindicated iff any of 15 caller flags: CT ICH; recent ischemic stroke, severe head trauma, or intracranial/spinal surgery; posttraumatic infarction; history of ICH; SAH presentation; GI malignancy or bleed 21d; coagulopathy; LMWH 24h; DOAC not cleared; GP IIb/IIIa; infective endocarditis; aortic arch dissection; intra-axial neoplasm. Not Class I eligibility, time window, or a dose. magent does not read CT or assay labs. Not a treatment order.
Output
Returns a structured result indicating whether IV alteplase is contraindicated (true/false) and which of the 15 Powers 2018 Table 6 Class III Harm flags were active. Does not compute dosing, assess Class I eligibility, read CT images, or interpret lab values — all flags are caller-assigned.
Example use cases
ED tPA safety screen before dosing
“Before we consider alteplase for this acute stroke patient, can you run the Powers 2018 Table 6 contraindication check? CT shows no ICH, no recent ischemic stroke, no head trauma, no prior ICH, no SAH presentation, no GI bleed or malignancy, patient has coagulopathy with INR 2.1, no LMWH, no DOAC, no GP IIb/IIIa, no endocarditis, no aortic dissection, and no intra-axial neoplasm — and no recent intracranial surgery.”
DOAC clearance contraindication flag
“This stroke patient took rivaroxaban this morning and we haven't confirmed renal clearance or documented normal labs — is IVT contraindicated under the 2018 AHA guidelines? All other 14 contraindication flags are false.”
Aortic dissection and endocarditis dual flag check
“We suspect aortic arch dissection and the patient also has known infective endocarditis. Can you confirm both of those are Class III Harm contraindications to IV alteplase per Powers 2018 Table 6, with all other flags set to false?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/ivt_contraindicationsWhen to prefer
Use this endpoint when you need a fast, rule-based check of the 15 Powers 2018 AHA/ASA Table 6 Class III Harm contraindications to IV alteplase in acute ischemic stroke, and all flags have already been clinically assessed by the caller. Do not use it to determine Class I eligibility, compute dosing, interpret CT images, or assay lab values. Prefer this over manual checklist review when building automated stroke triage workflows or clinical decision support pipelines.
Side effects
- Missing any of the 15 required boolean query parameters returns a validation error
- Passing non-boolean values for flags causes schema rejection
- Misassignment of flags by the caller (e.g. not reading CT correctly) leads to clinically incorrect output — the API trusts caller input entirely
- Network timeout or service unavailability returns a 5xx error
- Payment failure (x402) blocks the request if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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