Transistor MCP vs Op3 MCP — MCP Server Comparison | AllMCPs
Side-by-Side Model Context Protocol Comparison
Transistor MCP vs Op3 MCP
In-depth architectural comparison of the Transistor MCP and Op3 MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Transistor MCP
Podcasts · Local stdio
Quality: 43/100 (Fair) | Auth: API Key required
Op3 MCP
Podcasts · Local stdio
Quality: 63/100 (Good) | Auth: API Key required
Verdict Summary: Choose Transistor MCP if you need specialized Podcasts tools running via a local process. Choose Op3 MCP if your workspace requires Podcasts integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Transistor MCP when:
You need dedicated capabilities in the Podcasts domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
You have access to required keys: TRANSISTOR_API_KEY.
Podcast analytics from OP3, the Open Podcast Prefix Project: downloads over time, listener geography, app share, and per-episode breakdowns. Read-only by design.
List episodes for a specific show. Use 'fields' to request only specific attributes and reduce response size (e.g. {"episode": ["title", "number", "status", "season"]}). Use 'query' to search by title.
create_episode
Create a new episode
update_episode
Update an existing episode
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Transistor MCP is categorized under Podcasts and uses a local stdio subprocess. In contrast, Op3 MCP belongs to Podcasts using local stdio subprocess. Select Transistor MCP when you need capabilities focused on podcasts and Op3 MCP when you require tools for podcasts.
Get analytics for a show or episode. Defaults to last 14 days if no dates provided.
get_episode
Get a single episode
get_all_episode_analytics
Get analytics for all episodes of a show. Defaults to last 7 days if no dates provided.
list_webhooks
List all webhooks for a show
subscribe_webhook
Subscribe to a webhook for a show
unsubscribe_webhook
Unsubscribe from a webhook
+11 more tools listed on main page
Op3 MCP Tools (6)
op3_get_show
Look up a podcast show on OP3 and get its UUID, title, podcast GUID, and stats page URL. Pass a show UUID, a podcast:guid, or a base64-encoded feed URL. This is the entry point: most other tools need the show UUID this returns. Set include_episodes to also list episodes (id, title, pubdate).
op3_show_downloads
Get a show's recent download summary from OP3: monthly downloads, a week-by-week breakdown, and the average weekly downloads. Use this for 'how many downloads does my show get' questions. Needs a show UUID (from op3_get_show).
op3_episode_downloads
Get per-episode download counts for a show from OP3: for each recent episode, downloads in the first 1/3/7/30 days after publish and all-time. Good for comparing how episodes perform. Needs a show UUID. Use limit to cap how many episodes come back.
op3_top_apps
Get the top podcast apps and players downloading a show, from OP3, over the last three calendar months. Returns each app with its download count and percent share. Answers 'what apps do my listeners use'. Needs a show UUID.
op3_top_countries
Get the top listener countries (or regions) for a show. NOTE: OP3 has no native geography query, so this counts raw download records and aggregates by country client-side. It is a representative sample, not an exact lifetime total. OP3 returns raw records oldest-first, so to keep the sample recent this tool defaults to the last `window_days` days (90) when you do not pass an explicit start. Each result has a download count and percent share. Needs a show UUID. Keep max_records modest to stay fast and within rate limits.
op3_downloads_timeseries
Fetch raw download records for a show from OP3 over a date range. Returns individual download events (time, country, app, device). This is the low-level feed behind the other tools. Use it when you need to filter by episode or a specific date window. Keep limit low (records are verbose). For totals or geography summaries, prefer op3_show_downloads / op3_top_countries.