This MCP server provides tools to interact with the Transistor.fm API, allowing you to manage podcasts, episodes, and view analytics. The data shown in the demo above is sample data, not real account values.

Fork notice: This is a maintained fork of gxjansen/Transistor-MCP by Guido X Jansen, who built the original server. This fork adds full API parity (all documented params, response trimming, search), the get_download_summary and compare_episodes tools, ISO date handling, and transcript support. The MIT license and original copyright are preserved in LICENSE.

About

Built and maintained by Conor Bronsdon for the Chain of Thought podcast production workflow, where it handles episode creation, transcript uploads, and analytics pulls. Conor hosts Chain of Thought, a show about AI infrastructure and how practitioners actually build with it. More tools for creators live in ai-tools-for-creators. Find Conor on X at @ConorBronsdon.

Sibling MCP servers:

• substack-mcp: read posts and manage Substack drafts
• podcastindex-mcp: search the Podcast Index and track guest appearances

Configuration

Add the server to your MCP settings configuration file with your Transistor API key:

{
  "mcpServers": {
    "transistor": {
      "command": "npx",
      "args": ["-y", "transistor-mcp"],
      "env": {
        "TRANSISTOR_API_KEY": "your-api-key-here"
      }
    }
  }
}

Or run from a local clone (after npm install && npm run build):

{
  "mcpServers": {
    "transistor": {
      "command": "node",
      "args": ["path/to/Transistor-MCP/build/index.js"],
      "env": {
        "TRANSISTOR_API_KEY": "your-api-key-here"
      }
    }
  }
}

Available Tools

get_authenticated_user

Get details of the authenticated user account.

{
  // No parameters needed
}

authorize_upload

Get a pre-signed URL for uploading an audio file. Use this before creating an episode with a local audio file.

{
  "filename": string  // Required: Name of the audio file to upload
}

Response includes:

• upload_url: Pre-signed S3 URL for uploading the file
• content_type: Content type to use when uploading (e.g., "audio/mpeg")
• expires_in: Time in seconds until the upload URL expires
• audio_url: Final URL to use when creating the episode

list_shows

List all shows in your Transistor.fm account, ordered by updated date (newest first). Returns a paginated list with 10 items per page.

{
  "page": number,     // Optional, defaults to 

... [View full README on GitHub](https://github.com/conorbronsdon/transistor-mcp#readme)