Magic Master — Audio Mastering

pro.magicmasterPublished by magicmaster.proOfficial publisherv0.5.0Updated Oct 24, 2026

Audio mastering for AI agents: LUFS/True Peak targets, Suno/Udio AI-fingerprint removal.

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Overview

AI-generated overview

Hosted audio mastering service that lets an assistant analyze tracks, preview presets, master to LUFS targets and strip Suno/Udio AI fingerprints.

What you can do
  • Inspect the service: read the service manifest, list the 24 presets with their LUFS targets, fetch live token pricing and check account limits.
  • Analyze audio: measure integrated LUFS, sample peak, duration, sample rate and stereo correlation without processing.
  • Compare styles: master the middle 24 seconds in two to six presets and get loudness plus a listen link.
  • Master audio: master one track or up to 10 in a batch with album-relative loudness, and strip the AI generator fingerprint.
  • Track jobs: poll status, progress and result metrics, and get a signed download link when a master is done.
  • Prepare a token purchase checkout link for the human to complete.
When to use it
Useful when an assistant works with music or spoken-word audio and needs release-ready loudness, consistent album levels, or removal of Suno/Udio fingerprints, without leaving the chat. The free analysis and preview tools are worth adding even if you never buy tokens.
Requirements
A remote MCP endpoint over streamable HTTP, or the npm bridge package run with npx for stdio-only clients; the bridge needs Node.js and outbound HTTPS. No key is needed for the free tools; paid mastering uses an X-API-Key header or OAuth 2.1 sign-in. Audio is supplied as a public https URL, including Suno/Udio, Google Drive and Dropbox share links.
Before you install
Mastering spends money: master_track costs 1 token and batch_master 1 token per track, and tokens are bought through a checkout link the assistant cannot complete itself. An API key (mm_ prefix) is a credential and should be kept out of shared configs. Uploaded audio goes to a third-party service, and finished masters are retained only briefly for guests and free accounts. Use dry_run to see cost before spending.

Installation

In SourceWeft

  1. Open Magic Master — Audio Mastering in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/pro.magicmaster%2Fmastering/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "magic-master-audio-mastering": {
      "type": "http",
      "url": "https://magicmaster.pro/mcp"
    }
  }
}

README

Magic Master MCP — audio mastering for AI agents

[Magic Master — Audio Mastering MCP server]

Remote MCP server that lets Claude, ChatGPT, Cursor, VS Code, Claude Code, OpenAI Codex and any other MCP client master audio: hit a loudness (LUFS) target with True Peak limiting, remove the Suno / Udio AI fingerprint, compare presets on a 24-second preview, and master a whole album with consistent relative loudness. Results come back with measured numbers and a mastering passport in the chat.

Nothing to install: the server is hosted. This repository holds the connection recipes and a small stdio bridge for clients that cannot speak HTTP.

Tools

The server exposes 11 tools. Descriptions below are condensed from the live tools/list; the live text is authoritative.

ToolWhat it doesCost
get_service_infoWhat Magic Master does, what is free, what costs a token, and where the rules live. Call once at the start of a session.free
list_presetsAll 24 mastering presets with their target loudness in LUFS. Gives the exact keys that master_track and batch_master accept.free
get_pricingLive token packs and payment methods (RUB). Prices are read live, not quoted from memory.free
check_limitsToken balance, free quota left and when it resets, upload cap, whether PRO modules are available.free
analyze_trackIntegrated LUFS, sample peak, duration, sample rate and stereo correlation, without processing. True peak and loudness range come back from get_job after mastering.free
clean_ai_traceStrips the Suno / Udio AI generator fingerprint; loudness and tone stay as they are. Returns a job id.free
preview_stylesMasters the middle 24 seconds in 2–6 presets at once and returns each one's loudness and a listen link.free, 6 per day
master_trackMasters one track. Costs 1 token when the account has a balance; otherwise it runs on the free quota without PRO modules. Returns a job id. Pass dry_run=true to see the price and effective settings first.1 token
batch_masterMasters up to 10 tracks in one call with the same settings. album_mode (default true) keeps relative loudness between tracks. Returns one job id per track.1 token per track
get_jobStatus, progress and result metrics (after_lufs, true_peak_db, lra, platform_ready) for a mastering, cleanup or preview job. Includes a signed download_url when a master is done.free
create_topup_linkPrepares a token checkout for the human. The agent cannot complete the payment itself.free

Typical flow: analyze_track → (clean_ai_trace for AI-generated tracks) → optionally preview_styles → master_track → poll get_job.

Endpoints and authentication

EndpointAuthUse it when
https://magicmaster.pro/mcpnone, or X-API-Key: mm_…you write the code, you use Claude Code / Cursor / VS Code / Codex with a header, or you only need the free tools
https://magicmaster.pro/mcp/oauthOAuth 2.1 (authorization code + PKCE S256, scope mastering)your client cannot send custom headers (Claude Desktop, ChatGPT connectors)
  • Without any key, the free tools work on /mcp.
  • On /mcp, Authorization: Bearer means an OAuth access token. An account JWT sent there returns 401, and it breaks even the free calls. Use X-API-Key on /mcp, or connect through /mcp/oauth.
  • /mcp/oauth answers an unauthenticated request with 401 and a WWW-Authenticate challenge pointing at https://magicmaster.pro/.well-known/oauth-protected-resource, so a compliant client starts the sign-in on its own.
  • OAuth metadata: /.well-known/oauth-authorization-server; dynamic client registration: /oauth/register. Access tokens last one hour; refresh tokens rotate on every use. Tokens are issued for the resource https://magicmaster.pro/mcp only.
  • API keys (mm_…) are issued in the profile after a token purchase; up to 10 active keys.

Install

Claude Code

bash
claude mcp add --transport http magicmaster https://magicmaster.pro/mcp

Free tools work immediately. For the paid tools, add your key:

bash
claude mcp add --transport http magicmaster https://magicmaster.pro/mcp --header "X-API-Key: mm_YOUR_KEY"

Claude Desktop and claude.ai (custom connector, OAuth)

Settings → Connectors → Add custom connector → URL https://magicmaster.pro/mcp/oauth → sign in on the consent page. Use https://magicmaster.pro/mcp if you only need the free tools.

Claude Desktop through a stdio bridge (if you prefer the config file)

json
{  "mcpServers": {    "magicmaster": {      "command": "npx",      "args": ["-y", "mcp-remote", "https://magicmaster.pro/mcp/oauth"]    }  }}

Cursor (.cursor/mcp.json)

json
{ "mcpServers": { "magicmaster": { "url": "https://magicmaster.pro/mcp" } } }

VS Code (.vscode/mcp.json)

json
{ "servers": { "magicmaster": { "type": "http", "url": "https://magicmaster.pro/mcp" } } }

OpenAI Codex (~/.codex/config.toml)

toml
[mcp_servers.magicmaster]url = "https://magicmaster.pro/mcp"

ChatGPT (Developer mode → Connectors → Create): URL https://magicmaster.pro/mcp/oauth, authentication OAuth.

stdio-only clients — the npm package wraps the same bridge:

json
{ "mcpServers": { "magicmaster": { "command": "npx", "args": ["-y", "magicmaster-mcp"] } } }

The bridge points at https://magicmaster.pro/mcp/oauth by default. Set MAGICMASTER_MCP_URL=https://magicmaster.pro/mcp to use the anonymous endpoint instead.

One-click buttons: Add to Cursor · VS Code: vscode:mcp/install?{"name":"magicmaster","type":"http","url":"https://magicmaster.pro/mcp"}

Docker

For clients without Node, and for the Glama build that runs security checks:

bash
docker build -t magicmaster-mcp .docker run -i --rm magicmaster-mcp

The image holds only the bridge; the server itself stays hosted at https://magicmaster.pro/mcp. It is built from this repository (npm ci), so mcp-remote is baked in and the container needs only outbound HTTPS to magicmaster.pro at run time. The image defaults to the anonymous endpoint. To use OAuth (which also unlocks the paid tools), run it with -e MAGICMASTER_MCP_URL=https://magicmaster.pro/mcp/oauth.

Build spec for a Glama release (the platform configures the recipe on its side, it does not read this Dockerfile):

  • build steps: npm ci --omit=dev
  • start command: node bin/magicmaster-mcp.js
  • environment: MAGICMASTER_MCP_URL=https://magicmaster.pro/mcp

Free vs tokens

  • Free, no account: analyze_track, clean_ai_trace, preview_styles (6 per day), get_job, get_pricing, list_presets, get_service_info, check_limits, create_topup_link.
  • Guest mastering (no account): 3 basic masters per calendar month per IP. Basic means no PRO modules.
  • Free account: 1 master per UTC day (3 during the first 24 hours after sign-up). Also basic.
  • Trial for agents: registering an agent once (POST /api/agents/register, with the account's JWT as Authorization: Bearer) grants 3 full PRO masters and an API key. The MCP connector does not grant the trial; only that call does. See agents.md.
  • Tokens: 1 token = 1 full PRO master (any preset, all PRO modules, any export format). Tokens never expire. There are no subscriptions. Some packs include bonus tokens. Live packs and prices: get_pricing (RUB) or GET https://magicmaster.pro/api/tokens/packages.
  • Payment needs the human. An agent cannot complete a card payment. Call create_topup_link, hand the checkout link to the person, then poll check_limits until the balance is credited. A card issued outside Russia may be declined; see https://magicmaster.pro/wallet.
  • master_track and batch_master accept dry_run=true, which reports the price and the effective settings without spending anything.

Formats, limits and retention

  • Input (from agent.json): aac, aif, aiff, amr, flac, m4a, mp3, ogg, wav, webm. Detection is by content.
  • Output: wav, wav24, mp3, flac, opus, aac. MP3 bitrates 128/192/256/320; Opus 128/192.
  • Upload caps: on the site and API, 160 MB without payment; after a token purchase up to 1000 MB (WAV). Through this MCP server, master_track and batch_master accept up to 100 MB per file and batch_master up to 300 MB per call (10 tracks). check_limits returns the effective per-channel ceiling (max_upload_mb_via_mcp).
  • Audio source: a public https URL (audio_url). Share links to Suno/Udio song pages, Google Drive and Dropbox are resolved to the file.
  • Retention of finished masters: guest results are kept only briefly (in memory); free accounts 1 day; after a token purchase 30 days. get_job returns a signed download_url for about an hour, which works without credentials.
  • Typical time: 20–60 s per master; up to 10 minutes for a long track with restoration. Poll get_job, or pass webhook_url to master_track to get a POST instead.

Mastering options

  • Presets (24, from list_presets): e.g. standard (−14 LUFS), edm (−9), pop (−12), hiphop (−13), podcast (−16), unlimiter (−12), voice (−16), audiobook (−19). Use preview_styles to compare two to six of them on 24 seconds for free.
  • Target loudness: target_lufs overrides the preset, e.g. -14 for Spotify. True Peak limiting follows ITU-R BS.1770-5.
  • Output: out_format, bitrate, dither_type (tpdf, ns_e, ns_itu, for 16-bit WAV).
  • Density: intensity from 0.5 (gentler) to 1.5 (denser); 1.0 is the preset as designed.
  • Restoration: restore_dynamics opens up a brickwalled source before mastering (pairs with the unlimiter preset). denoise_strength (0–1) sets noise reduction; 0 disables it. The web restoration page also lists de-hum and de-click steps, which the MCP tools do not expose by name.
  • Suno / Udio cleanup: remove_watermark=true on master_track and batch_master also removes the AI fingerprint, free of charge. The standalone tool is clean_ai_trace.
  • Album mode: batch_master with album_mode (default true): the loudest track hits the target and the others keep their offsets, so a quiet interlude is not inflated to single level. Use album_mode=false for unrelated singles.

What is not in MCP

These features are on the website (or in the API) but are not MCP tools:

Links

Terms https://magicmaster.pro/terms · Privacy https://magicmaster.pro/privacy · Pricing https://magicmaster.pro/pricing · Developer API https://magicmaster.pro/developers · Support [email protected]

Changelog

0.3.2

  • Tool list documented as the live 11 tools: adds preview_styles (free comparison, 6 per day) and batch_master (album mode, up to 10 tracks per call); both were missing from the 0.3.0 README.
  • README: Codex, Claude Code with API key header, and OAuth details (/mcp/oauth, PKCE, scope mastering) added; limits and formats taken from the live manifest.
  • Bridge (bin/magicmaster-mcp.js) uses the bundled mcp-remote dependency when it is installed; it falls back to npx only when it is not.
  • Package metadata: description and keywords extended.

По-русски

Удалённый MCP-сервер Magic Master для AI-агентов и клиентов вроде Claude, ChatGPT, Cursor, VS Code, Claude Code и Codex. Он выводит трек на целевую громкость (LUFS) с ограничением True Peak, снимает цифровой след Suno/Udio, сравнивает пресеты на 24-секундном отрывке и мастерит целый альбом с сохранением относительной громкости. Ставить ничего не нужно — адрес https://magicmaster.pro/mcp.

  • Бесплатно: анализ, снятие следа ИИ, сравнение пресетов (6 раз в сутки), статус задач, цены и лимиты.
  • Платно: 1 токен = 1 полный PRO-мастеринг. Токены не сгорают, подписок нет. Актуальные цены — инструмент get_pricing (в рублях). Оплату проводит человек по ссылке из create_topup_link.
  • Подключение: Claude Code — claude mcp add --transport http magicmaster https://magicmaster.pro/mcp; Claude Desktop и claude.ai — пользовательский коннектор на https://magicmaster.pro/mcp/oauth.
  • Подробности и подключение по-русски: https://magicmaster.pro/mcp. Поддержка: [email protected].

Source: README.md at commit c97b1b9

Tools

11

get_service_info

Service info

What Magic Master does, what is free, what costs a token, and where the rules live. Call once at the start of a session.

Takes no parameters.

list_presets

List mastering presets

All mastering presets with their target loudness in LUFS. Call this to get the exact preset keys that master_track and batch_master accept. Use preview_styles instead when you want to HEAR 2-6 of them on the actual track before choosing, and get_service_info when you need the wider service manifest rather than the preset list. Free.

Takes no parameters.

get_pricing

Get live pricing

Live token packs and payment methods. Never quote prices from memory. Free.

Takes no parameters.

check_limits

Check quota and balance

What this account may do right now: token balance, free quota left and when it resets, upload cap, whether PRO modules are available. Call before mastering.

Takes no parameters.

analyze_track

Analyze a track

Measure integrated LUFS, sample peak, duration, sample rate and stereo correlation without processing. Free, a couple of seconds. Run this before choosing a preset. Note: true peak and loudness range are NOT part of this fast pass — they are measured on the result and come back from get_job.

Parametersaudio_urlrequired

clean_ai_trace

Remove Suno/Udio AI fingerprint

Strip the AI generator fingerprint without mastering; loudness and tone stay as they are. Free. Returns a job id — poll get_job.

Parametersaudio_urlrequiredout_formatsensitivity

preview_styles

Compare presets on 24 seconds

Master the middle 24 s of the track in 2-6 presets at once and get each one's loudness plus a listen link. FREE (6 per day). Use this instead of guessing a preset, and instead of burning a token to 'try' one.

Parametersstylesaudio_urlrequired

master_track

Master a track

Master one track. COSTS 1 TOKEN when the account has a balance; otherwise it runs on the free quota without PRO modules. Returns a job id immediately — poll get_job (typical 20-60 s, up to 10 min with restoration). The source is fetched by this server, so the ceiling here is 100 MB per file even when the account allows more. Pass dry_run=true first if you want the price and the effective settings before anything is spent.

Parametersstylebitratedry_runaudio_urlrequiredintensityout_formatdither_typetarget_lufswebhook_urldenoise_strengthremove_watermarkrestore_dynamics

batch_master

Master an album or a batch

Master up to 10 tracks in one call with the same settings. Needs N TOKENS for N tracks, or N free runs — not one. album_mode (default true) levels the tracks RELATIVE to each other: the loudest hits the target exactly, the others keep their offsets, so a quiet interlude is not inflated to single level. Limits: 10 tracks, 100 MB per file and 300 MB per call (this server's own caps, for memory) — the account may allow bigger uploads on the site, but not through this channel. A big album takes minutes — send fewer, longer tracks per call rather than all at once. Returns one job id per track — poll each with get_job. Pass dry_run=true to see the price and the settings before anything is spent.

Parametersstylebitratedry_runalbum_modeaudio_urlsrequiredout_formattarget_lufsremove_watermark

get_job

Get job status

Status, progress and result metrics (after_lufs, true_peak_db, lra, platform_ready) for a mastering, cleanup or preview job. For previews it returns each style with its loudness and a listen link. When a master is done it also returns download_url — a signed link that works without credentials for about an hour, so an OAuth-connected agent can fetch the file it paid for. Free.

Parametersjob_idrequired

Version history

1
  1. v0.5.0LatestSep 16, 2026

Score

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