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ARC-HBR High Bleeding Risk Calculator (Urban 2019 Table 3)
x402
ARC-HBR High Bleeding Risk Calculator (Urban 2019 Table 3) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Evaluates ARC-HBR (Academic Research Consortium - High Bleeding Risk) criteria for PCI patients: classifies as high bleeding risk if ≥1 major or ≥2 minor criteria are met, per Urban 2019 Table 3.
Price / call$0.005
Success—
StatusUnknown
How this service works
ARC-HBR (Urban 2019 Table 3). High bleeding risk at PCI iff ≥1 major or ≥2 minor. Binary; no weighted point score. Caller-assigned booleans; magent does not assay labs or read NIHSS. Mutex (400): severe vs moderate CKD, Hb <11 vs mild anemia, major vs minor bleed, moderate-severe stroke <6 mo vs any other ischemic stroke. Not a DAPT duration. Not a medical device.
Output
Returns a binary high-bleeding-risk flag (true/false) indicating whether the patient meets ARC-HBR criteria (≥1 major or ≥2 minor criteria from Urban 2019 Table 3), along with counts of major and minor criteria satisfied. Does not return a weighted point score or DAPT duration recommendation.
Example use cases
Pre-PCI bleeding risk triage
“My interventional cardiology patient is going for PCI next week — they have hemoglobin of 10.2 g/dL, a history of brain AVM, and active cancer diagnosed 8 months ago. No other criteria apply. Run the ARC-HBR Urban 2019 check and tell me if they're high bleeding risk and which major criteria triggered it.”
Antiplatelet planning for elderly patient
“I have a 76-year-old post-PCI patient with mild anemia (Hb 11.8 g/dL in a man), moderate CKD (eGFR 45), and on long-term steroids — no major bleeding history or other flags. Can you check if they meet ARC-HBR high bleeding risk based on their minor criteria count?”
Cardiology EMR risk flag automation
“For this patient chart: anticipated long-term OAC yes, severe CKD no, moderate CKD no, hemoglobin under 11 no, mild anemia no, active malignancy yes (diagnosed 6 months ago), all other ARC-HBR Table 3 criteria false — can you compute the ARC-HBR classification and return whether they are high bleeding risk at PCI?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/arc_hbrWhen to prefer
Use this endpoint when you need a standards-compliant, auditable ARC-HBR binary classification per the Urban 2019 Table 3 consensus definition for a PCI patient, where the calling system has already resolved lab values (eGFR, hemoglobin, platelet count) and clinical facts into boolean criteria. Do not use if you need a continuous weighted score, DAPT duration guidance, a medical device decision, or if you expect the service to interpret raw lab values or imaging.
Side effects
- HTTP 400 (mutex violation): mutually exclusive fields both set to true — e.g. severe_or_esrd_ckd and moderate_ckd both true, or hemoglobin_lt_11 and mild_anemia both true, or major and minor bleed both true, or moderate_severe_ischemic_stroke_6mo and any_ischemic_stroke_not_major both true
- Missing required boolean query parameters returns a validation error
- All boolean fields must be explicitly provided; omission of required fields will cause a 400/422 error
- Payment failure if x402 USDC micropayment of $0.005 is not completed before the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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