Public API: Master Audio with One HTTP Request

2026-07-19 · Magic Master

The most frequent request from teams writing to our support inbox: "can we call your mastering from our code?" Now the answer is officially yes: Magic Master has a public REST API, documented at magicmaster.pro/developers.

Who it's for

Distribution services — automatic catalog mastering before delivery to the platforms.
Music generators — post-processing of AI tracks (including the automatic De-clipper for over-compressed exports).
Labels and studios — batch processing of releases: Album Mode preserves the relative loudness of tracks.
Indie developers — a mastering feature in your app without hiring a DSP team.

What it looks like

curl -X POST https://magicmaster.pro/api/v2/master \
  -H "X-API-Key: mm_live_YOUR_KEY" \
  -F "file=@track.wav" \
  -F "style=edm" \
  -F "target_lufs=-9"
# → {"job_id": "..."} — then poll the status and download the file

Three endpoints cover the whole flow: analyze (free analysis — LUFS, True Peak, genre suggestion), master (1 token = 1 track), batch (up to 10 files, album_mode=1, intensity 0.5–1.5). The response carries the full passport: actual LUFS, post-codec true peak, tonal analysis, a loudness graph.

Honest terms

Same price as the web app: 1 token = 1 master. No separate "enterprise markup" for API access.
Analysis is free — build your catalog QC on it and pay only for mastering.
We don't store files: processing happens in memory, results are deleted after download.
Interactive docs: magicmaster.pro/docs (OpenAPI/Swagger) — try requests right from the browser.

Getting started

Sign up and top up your token balance.
Create a key in your profile.
Open the developer documentation — quickstarts in curl and Python.

Questions and API requests — support@magicmaster.pro. Tell us what you're building: real integrations drive our API roadmap first.

Questions and answers

How do I get an API key?

Sign up, buy token packs in [Wallet](/wallet?lang=en), and create a key in your profile — up to 10 active keys. The key is shown once at creation and is passed via the X-API-Key header.

How much does an API request cost?

Analysis (/api/v2/analyze — LUFS, True Peak, genre suggestion) is free. Mastering costs 1 token per track, same as the web app: there is no separate 'API price'. Tokens never expire.

Which formats and parameters are supported?

Input: WAV, MP3, FLAC. Output: WAV, MP3, FLAC, OPUS, AAC. Parameters: 23 presets, target LUFS, an intensity slider from 0.5 to 1.5, and batch processing of up to 10 files with Album Mode (album_mode=1).

What does the API return after mastering?

A full track passport: the actual LUFS, true peak (including after the codec — an honest check of the already-encoded file), tonal analysis, a loudness graph, and input-clipping info with De-clipper restoration status.

Try Magic Master

Upload a track — a finished master in seconds.

Open mastering →AI mastering online LUFS analyzer