Media URL Transcriber MCP Server

An MCP server for the Mamba Labs Media URL Transcriber actor on Apify. Turn media file links into transcripts on your own provider key.

What's Inside

What it does
Quick start
Prerequisites
Example prompts
Tool
Inputs
Pricing
Full actor documentation
License

What it does

Give direct audio or video file links and your own Deepgram, AssemblyAI, Groq, or OpenAI key. The actor sends each file to that provider and returns one row per file with the transcript, timestamped segments, language, and duration. You pay your provider directly and pay this actor per media minute. It does not download from platforms such as YouTube or TikTok.

All of the work runs on Apify. This package is a thin client that starts the actor run, waits for it, and hands back the dataset rows.

Quick start

You need Node.js 18 or newer and an Apify account with an API token.

Add this to your Claude Desktop config (claude_desktop_config.json), Cursor, or any MCP client:

{
  "mcpServers": {
    "mamba-media-url-transcriber": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-media-url-transcriber"
      ],
      "env": {
        "APIFY_TOKEN": "your-apify-token"
      }
    }
  }
}

Restart the client. The transcribe_media_urls tool appears.

Prerequisites

Node.js 18 or newer.
An Apify API token from console.apify.com/account/integrations, set as APIFY_TOKEN. The server lists its tool without a token; a call needs one.

Example prompts

"Transcribe this podcast episode file on my Deepgram key."
"Turn these 10 recorded call files into text with speaker labels."
"Check whether these media links can be read before I transcribe them."

Tool

transcribe_media_urls. One tool. Example arguments:

{
  "media_urls": [
    "https://dpgr.am/spacewalk.wav"
  ],
  "provider": "deepgram"
}

Inputs

Every buyer facing input of the actor. Omitted inputs take the actor's own defaults.

Input	Type	Required	Description
`media_urls`	array	no	Direct links to audio or video files (mp3, wav, m4a, mp4, and others) that answer without a login. Platform pages such as YouTube, TikTok, Instagram, Vimeo, or Spotify are refused with a free row. In Clay, put the column inside a one item list.
`provider`	string	no	Whose API transcribes the file, on your key: deepgram (default), assemblyai, groq, or openai. openai takes files up to 25 MB; the others read the URL.
`api_key`	string	no	Your own key for the provider above. It is stored encrypted by Apify, sent only to that provider, and never written to a row or a log. With no key the run checks up to 3 files and transcribes nothing, for free.
`model`	string	no	Optional. The provider's model name. Defaults: deepgram nova-3, assemblyai its own default, groq whisper-large-v3-turbo, openai whisper-1 (the only one accepted there).
`language`	string	no	Optional. A language code such as en or de. Empty lets deepgram and assemblyai detect it; whisper models detect it on their own.
`diarize`	boolean	no	yes or no (default no). Labels who spoke each segment. deepgram and assemblyai only; your provider may bill it as an add on.
`include_segments`	boolean	no	yes (default) or no. Adds a list of segments with start and end seconds to each row.
`max_charge_usd`	string	no	Optional. No new file starts once this is used up. A transcript your provider already billed is still delivered, charged up to this amount, and the run then stops. It limits this actor's charge, not your provider's bill.

Pricing

Pay per event on Apify, billed to your Apify account. Prices in USD.

Event	Free plan	Bronze	Silver	Gold
`media-minute`, one minute of media transcribed, rounded up per file	$0.005	$0.00475	$0.0045	$0.00425
`apify-actor-start`, per run start	$0.003	$0.003	$0.003	$0.003

Refused, failed, and silent files, media checks with no key, and refused input are free. Mamba Labs pays the platform costs of the run. Mamba Labs pays the platform costs of the run, Apify proxy traffic included.

Full actor documentation

apify.com/mambalabs/media-url-transcriber

License

MIT. See LICENSE.

Media URL Transcriber MCP Server