podcast-summarizer-mcp 0.3.0

MCP server for natural-language YouTube channel discovery + Gemini-powered video summaries. Zero YouTube API key required.

Podcast Summarizer MCP 📝

MCP that works with OpenClaw, Claude Desktop, Claude Code. Search & discover YouTube channels via natural language and summarize videos with no transcripts or subtitles required.

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Quick start (5 minutes)

Python 3.10+ and a Gemini API key (free) from https://aistudio.google.com.

1. Install from source

git clone https://github.com/kaiding-ucb/podcast-summarizer-mcp
cd podcast-summarizer-mcp
python3 -m venv .venv && .venv/bin/pip install -e .

# Note the absolute path — you'll paste it into your host config below.
echo "$(pwd)/.venv/bin/podcast-summarizer-mcp"

2. Configure ONE host

Pick whichever you use. Replace /ABSOLUTE/PATH with what step 1 echoed, and AIza... with your Gemini key.

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "podcast-summarizer": {
      "command": "/ABSOLUTE/PATH",
      "env": { "GEMINI_API_KEY": "AIza..." }
    }
  }
}

Quit Claude Desktop fully (⌘Q) and reopen. Click the 🔌 icon — podcast-summarizer should be listed.

Claude Code

claude mcp add podcast-summarizer \
  --env GEMINI_API_KEY=AIza... \
  -- /ABSOLUTE/PATH

claude mcp list   # should show podcast-summarizer

OpenClaw

Add to ~/.openclaw/openclaw.json under mcp.servers:

"podcast-summarizer": {
  "command": "/ABSOLUTE/PATH",
  "env": { "GEMINI_API_KEY": "AIza..." }
}

Restart OpenClaw (pkill -f openclaw-gateway; openclaw).

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Example prompts

Discover:

Does Andrej Karpathy have a YouTube channel?

Find me a few investing podcasts.

Track:

Add Forward Guidance to my channels

Add @ForwardGuidanceBW

What channels am I tracking?

Remove Forward Guidance

Summarize:

Summarize this video: https://www.youtube.com/watch?v=MO9ZTZPUwXY

Summarize today's new videos from all my channels in parallel

I have a 20-video backlog — no rush, do it overnight to save cost

The agent picks analyze_video_start (parallel, full price) by default and analyze_videos_batch_start (50% off, async) only when you say "no rush" / "overnight".

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📱 Use via Telegram, WhatsApp & More (OpenClaw)

Connect this MCP to Telegram, WhatsApp, Discord and 20+ messaging platforms via OpenClaw — a self-hosted AI gateway. Talk to your podcast research agent from your phone, anywhere.

Telegram → OpenClaw agent (Claude / Gemini / GPT) → podcast-summarizer-mcp → Gemini + YouTube

OpenClaw routes messages from your chat platform of choice to an AI agent. The agent talks to this MCP over standard stdio — no Python wrapper or shim required.

Setup

# 1. Install OpenClaw (Node 22+)
npm install -g openclaw

# 2. Add a Telegram bot token (interactive — paste BotFather token)
openclaw configure --section channels

# 3. Add this MCP + agent + model to ~/.openclaw/openclaw.json:
#    (already covered in Quick Start — use the OpenClaw snippet)
openclaw config set agents.defaults.model "anthropic/claude-sonnet-4-5"

# 4. Start the gateway
openclaw gateway

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Tools

13 tools. The agent picks; you don't call them directly.

Tool	Purpose
search_youtube_channels(query, max_results=5)	Fuzzy channel search
resolve_youtube_channel(handle_or_url)	@handle or URL → channel
get_channel_metadata(channel_id)	Subs, description, recent titles
add_tracked_channel(channel_id, name, handle?, tags?)	Add to registry
remove_tracked_channel(channel_id)	Remove from registry
list_tracked_channels(tag?)	List tracked channels
discover_new_videos(channel_ids?, tag?, ...)	New videos since last poll
get_video_info(video_url)	Metadata only (no Gemini cost)
analyze_video_start(video_url, prompt?)	Launch Gemini analysis (returns job_id)
analyze_video_result(job_id)	Poll for the result
analyze_videos_batch_start(video_urls, prompt?)	50%-cheaper batch path (24h SLA)
analyze_videos_batch_result(batch_job_name)	Poll batch result
get_state(channel_ids?)	Per-channel last-seen video

Registry state lives at ~/.podcast-summarizer-mcp/channels.json.

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Configuration

Set in the host's env block. Only GEMINI_API_KEY is required.

Variable	Default
GEMINI_API_KEY	required
VIDEO_ANALYSIS_CHANNELS_PATH	~/.podcast-summarizer-mcp/channels.json
VIDEO_ANALYSIS_STATE_PATH	~/.podcast-summarizer-mcp/video-state.json
VIDEO_ANALYSIS_JOBS_PATH	~/.podcast-summarizer-mcp/jobs.json
VIDEO_ANALYSIS_BATCH_METADATA_PATH	~/.podcast-summarizer-mcp/batches.json
VIDEO_ANALYSIS_PROMPT_PATH	unset → built-in investment-podcast prompt

VIDEO_ANALYSIS_PROMPT_PATH is re-read on every analysis call (no restart). Bundled examples in prompts/: investment-podcast.md, technical-talk.md, interview.md, news-briefing.md.

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MIT License.