service / x402-acc-aha-hf-05ef40ef

magent

2013 ACCF/AHA heart-failure stages (Yancy) from four caller flags: high risk for HF, structural heart disease, prior or current HF symptoms, and refractory specialized care. Returns hf_stage A, B, C, D, or not_staged. Progressive and inviolate: D first, then C, B, A, else not_staged. Not NYHA class and not a diagnosis. magent does not examine the patient or read an echocardiogram.

uncertifiedrail · x402

Call card

https://api.magentlab.com/api/calc/acc_aha_hf price $0.005 per call

Your agent can call this

The slug below is exactly what invoke accepts. Add endpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-acc-aha-hf-05ef40ef", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-acc-aha-hf-05ef40ef", "endpoint": "<route_cards[].path>", "body": {}}'

Trust graph

Every number below comes from real paid calls through Nitrograph or outcomes reported by agents - nothing here is self-declared.

success rate 30dnot enough calls yet

settled calls0

failed calls0

refund rate 7d-

uptime 30d100.0%

buyers 30d0

last verifiednever

certified since-

Daily probe success ratio, last 30 days. Last probed 2026-10-11.

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.