Magic Master — Audio Mastering

Name: Magic Master — Audio Mastering
Author: denisok-ai

by denisok-aiversion 0.5.0i★ –iComputer or cloud

Registry namepro.magicmaster/mastering

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Design, images & audio

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://magicmaster.pro/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

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

Or run it on your computer

claude mcp add mastering -- npx -y magicmaster-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

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

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "mastering": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "magicmaster-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://magicmaster.pro/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain magicmaster.pro (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Design, images & audioi

More stars than 0% of the other 2164 servers in this category
Published to the registry more recently than 28% of the other 2164 servers in this category
Basic checks equal to or better than 100% of the other 2164 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Magic Master — Audio Mastering safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.5.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Figma Context MCP, Claude Real Video, Figma MCP Server

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Figma Context MCP

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Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.

Runs on your computer★ 16,165MITUpdated 5 months ago

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Let any LLM watch a video locally — and search everything it has ever watched.

Runs on your computer★ 2,284MITUpdated 2 months ago

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Figma MCP Server

by figma

Figma’s official server gives AI your design data so it can turn designs into code or describe them accurately. Connects to Figma’s cloud.

Runs in the cloud★ 2,152Updated 13 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Magic Master MCP — audio mastering for AI agents

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.

Server: https://magicmaster.pro/mcp (streamable HTTP; protocol revisions 2026-07-28, 2025-11-25, 2025-06-18)
OAuth endpoint (for clients that cannot send headers, e.g. Claude Desktop custom connectors): https://magicmaster.pro/mcp/oauth
Agent playbook: https://magicmaster.pro/agents.md · machine manifest: https://magicmaster.pro/agent.json · OpenAPI (public subset): https://magicmaster.pro/openapi-public.json
Human page (RU/EN): https://magicmaster.pro/mcp
Service version: 3.15.0 (as reported by get_service_info)

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.

Tool	What it does	Cost
`get_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.	free
`list_presets`	All 24 mastering presets with their target loudness in LUFS. Gives the exact keys that `master_track` and `batch_master` accept.	free
`get_pricing`	Live token packs and payment methods (RUB). Prices are read live, not quoted from memory.	free
`check_limits`	Token balance, free quota left and when it resets, upload cap, whether PRO modules are available.	free
`analyze_track`	Integrated 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_trace`	Strips the Suno / Udio AI generator fingerprint; loudness and tone stay as they are. Returns a job id.	free
`preview_styles`	Masters 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_track`	Masters 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_master`	Masters 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_job`	Status, 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_link`	Prepares 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

Endpoint	Auth	Use it when
`https://magicmaster.pro/mcp`	none, 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/oauth`	OAuth 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

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

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

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)

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

Cursor (`.cursor/mcp.json`)

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

VS Code (`.vscode/mcp.json`)

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

OpenAI Codex (`~/.codex/config.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:

{ "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:

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:

Stem mastering (2–8 stems combined and mastered as one track): API POST /api/v2/master/stems, 1 token.
Free vocal removal and stem split on the web: https://magicmaster.pro/stems-separation (free; a free account gets four stems).
Key changer, −6…+6 semitones, free: https://magicmaster.pro/tools/key-changer.
Audio cutter, free: https://magicmaster.pro/tools/audio-cutter.
Clipping check (free) and De-clipper: https://magicmaster.pro/declipper.
Release-ready check: https://magicmaster.pro/release-ready. Not launched yet: requests are open, nothing is charged.
Mi

Only the beginning is shown; read the rest in the repo

Magic Master — Audio Mastering

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Design, images & audioi

Common questions

Alternatives

Figma Context MCP

Claude Real Video

Figma MCP Server

README from the maker

Magic Master MCP — audio mastering for AI agents

Tools

Endpoints and authentication

Install

Docker

Free vs tokens

Formats, limits and retention

Mastering options

What is not in MCP