STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
service / x402-video-loudness-951d42a2

Video Loudness API

Takes a video of up to 15 minutes, measures the integrated loudness, true peak and loudness range of its soundtrack, and normalises it to the chosen standard with two-pass linear loudnorm, so the dynamics are kept and the target is met closely. The picture is copied without re-encoding. Loudness is measured again on the result and both measurements are returned. Output MP4 with AAC audio inline as base64, max 24 MB. Runs locally with ffmpeg. Billing per started video minute.

uncertifiedrail · x402

Call card

https://medien.halowerk.com/v1/video-loudness price $0.004 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-video-loudness-951d42a2", "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-video-loudness-951d42a2", "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-
2026-10-31: 100% ok2026-11-01: 100% ok2026-11-02: 100% ok2026-11-03: 100% ok2026-11-04: 100% ok2026-11-05: 100% ok

Daily probe success ratio, last 30 days. Last probed 2026-11-05.

Try it

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