STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
service / x402-psad-b5ac5ca7

magent

Benson 1992 PSA density: psa_ng_ml / prostate volume (ml). Volume is length_cm × width_cm × depth_cm × 0.5 (D1×D2×D3×1/2), not π/6. Provide PSA with prostate_volume_ml (1-500) or three dimensions (1-20 cm each), not both. Reports dimensionless psad to 3 decimals and retrospective bands <=0.05, 0.05-0.10, >=0.10. magent does not measure the gland or diagnose cancer. Not a medical device.

uncertifiedrail · x402

Call card

https://api.magentlab.com/api/calc/psad 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-psad-b5ac5ca7", "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-psad-b5ac5ca7", "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-
2026-09-29: 100% ok2026-09-30: 100% ok2026-10-01: 100% ok2026-10-02: 100% ok2026-10-03: 100% ok2026-10-04: 100% ok2026-10-05: 100% ok2026-10-06: 100% ok2026-10-07: 100% ok2026-10-08: 100% ok

Daily probe success ratio, last 30 days. Last probed 2026-10-08.

Try it

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