SubDownload exposes YouTube as an MCP-native data source. Connect via OAuth and your AI agent can summarize videos, fetch full transcripts (even for videos with no captions, via AI ASR), search across channels, and save everything into a private knowledge base. Works with Claude, ChatGPT, Cursor, and 40+ MCP clients. Free credits on signup, no card required.
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Scored across 13 tools
Each tool has a clearly distinct purpose: fetching transcripts, video info, ASR task polling, channel and library listing, searching, etc. No overlapping functionality.
All tool names follow a consistent verb_noun pattern (e.g., fetch_transcript, list_channel_videos, resolve_channel) with snake_case. No mixing of styles.
13 tools is well-scoped for a YouTube subtitle server. It covers transcript, info, search, and library management without being bloated.
The tool surface covers the full lifecycle: fetching transcripts (via captions or ASR), video metadata, searching across channels/playlists/YouTube, and library operations. No obvious gaps for the server's stated purpose.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
browse_podcast_categorysearch_podcast1 field changedInput schema / properties / catAdded value: +{
+ "description": "Optional comma-separated Podcast Index category names to scope results to a vertical (e.g. \"Business,Investing\" for finance podcasters, \"Technology\", \"Cryptocurrency\"). Category names come from PI's /categories/list.",
+ "type": "string"
+}save_to_library1 field changedInput schema / properties / visibilityAdded value: +{
+ "description": "'public' to publish into the public Knowledge Base (searchable via search_kb), or 'private' (default). When set, applies to both new rows and existing ones โ equivalent to PATCH /api/library/:id/visibility right after the save.",
+ "type": "string"
+}search_podcastsearch_kbfetch_transcriptfetch_video_infoget_asr_taskget_channel_latest_videosget_library_itemlist_channel_videoslist_librarylist_playlist_videosresolve_channelsave_to_librarysearch_channel_videossearch_youtubetranscribe_videoYouTube transcripts, search, channel browsing, and playlists for AI agents via MCP.
An MCP server that gives any LLM or agent clean YouTube transcripts on demand: a single video, a whole channel, or a playlist, plus AI cleanup of auto-generated captions. API-key auth, credit-based, same backend as the public v1 API. Get a free API key with 25 free credits at youtubetranscriptdownload.com/account.
๐ฏ The fastest YouTube transcript + YouTube search MCP for AI agents. Try for free.
YouTube transcripts, search, channel/playlist listings and upload tracking for AI agents.
Add one secure layer between your agents and this server.
