YouTube MCP (youtube_mcp)

A Model Context Protocol (MCP) server that provides production-grade YouTube inventory tools (channel resolution, channel videos, channel playlists, playlist videos) designed to be safe-by-default, quota-aware, and AI-friendly.

Repository: https://github.com/glonorce/youtube_mcp PyPI: https://pypi.org/project/glonorce-youtube-mcp/

Naming note:

• Repo name: youtube_mcp
• Python package / import name: youtube_mcp
• MCP entry module: python -m youtube_mcp.server

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Prerequisites (PATH)

Make sure these commands work in your terminal (they must be on PATH):

• python --version
• python -m pip --version
• pipx --version (only if you use the pipx-based MCP config)

✅ What is PATH?

PATH is the list of folders that your OS searches when you run a command like python or pipx.

• If a command is not on PATH, you'll see errors like:
  • Windows: executable file not found in %PATH%
  • PowerShell: ... is not recognized as the name of a cmdlet

Quick checks (Windows):

where python
where pipx
$env:Path

On Windows:

• install Python from https://www.python.org/downloads/
• during installation, check "Add Python to PATH"

Install pipx (only if you use the pipx-based MCP config):

python -m pip install --user pipx
python -m pipx ensurepath

Notes:

• After pipx ensurepath, restart your terminal/IDE so pipx is available on PATH.
• Verify with: pipx --version

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✨ Available on PyPI

pip install glonorce-youtube-mcp

# run
youtube_mcp

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Screenshots

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Features

• 7 MCP tools (1 text-output tool + 6 structured-output tools)
• Safe defaults (public data only; shorts/live excluded unless enabled)
• Quota-aware design (budgeting + expensive strategies as explicit opt-in)
• Tool discovery works in MCP hosts (tools registered with rich docstrings)
• Resilient YouTube Data API client (endpoint allowlist, retries, gzip handling)

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Tools

This server exposes 7 tools:

1. get_yt_video_info(video_id_or_url) -> str

   • Accepts a raw video id or a full YouTube URL.
   • Returns video metadata + transcript (when available).

2. resolve_youtube_channel(channel_ref, ...) -> dict

3. list_youtube_channel_videos(channel_ref, ...) -> dict

   • Paginated.
   • Returns nextPageToken and next_page_token (alias).

4. list_youtube_channel_playlists(channel_ref, ...) -> dict

   • Paginated.
   • Returns nextPageToken and next_page_token (alias).

5. list_youtube_playlist_videos(playlist_id, ...) -> dict

   • Paginated.
   • Returns nextPageToken and next_page_token (alias).

6. search_youtube_channel_videos(channel_ref, query, ...) -> dict

   • Keyword search within a channel (quota-expensive, uses Search API).
   • Paginated.

7. list_youtube_video_comments(video_id, ...) -> dict

   • Public comment threads for a video (comments may be disabled).
   • Paginated.

All tools except get_yt_video_info return structured JSON and are documented with AI-friendly docstrings.

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Installation & MCP configuration

PyPI distribution name: glonorce-youtube-mcp

Repo name: youtube_mcp · import name: youtube_mcp

API key

All inventory/search/comment tools require a YouTube Data API v3 key:

• YOUTUBE_API_KEY

Option 1 (recommended for MCP hosts): pipx (no repo clone)

Use this when you want a "zero local project" setup (no clone, no venv management).

{
  "mcpServers": {
    "youtube_mcp": {
      "command": "pipx",
      "args": ["run", "--spec", "glonorce-youtube-mcp", "youtube_mcp"],
      "env": {
        "YOUTUBE_API_KEY": "YOUR_KEY"
      }
    }
  }
}

Option 2: pip into a dedicated venv (no repo clone)

python -m venv .venv_youtube_mcp
# Windows: .venv_youtube_mcp\Scripts\activate
# macOS/Linux: source .venv_youtube_mcp/bin/activate

python -m pip install -U pip
python -m pip install glonorce-youtube-mcp

MCP host JSON example (simple):

{
  "mcpServers": {
    "youtube_mcp": {
      "command": "youtube_mcp",
      "env": {
        "YOUTUBE_API_KEY": "YOUR_KEY"
      }
    }
  }
}

If your MCP host can't find youtube_mcp on PATH (Windows error like: executable file not found in %PATH%), use an absolute path.

MCP host JSON example (absolute path to venv Python + module):

{
  "mcpServers": {
    "youtube_mcp": {
      "command": "C:\\PATH\\.venv_youtube_mcp\\Scripts\\python.exe",
      "args": ["-m", "youtube_mcp.server"],
      "env": {
        "YOUTUBE_API_KEY": "YOUR_KEY"
      }
    }
  }
}

Option 3: local clone (development)

git clone https://github.com/glonorce/youtube_mcp.git
cd youtube_mcp

python -m venv .venv
# Windows: .venv\Scripts\activate
# macOS/Linux: source .venv/bin/activate

python -m pip install -e .

MCP host JSON example (local clone):

{
  "mcpServers": {
    "youtube_mcp": {
      "command": "C:\\PATH\\youtube_mcp\\.venv\\Scripts\\python.exe",
      "args": ["-m", "youtube_mcp.server"],
      "env": {
        "YOUTUBE_API_KEY": "YOUR_KEY"
      }
    }
  }
}

Getting Your YouTube API Key

While not required, you can optionally set up a YouTube Data API key for enhanced functionality. Here's how to get one:

Step 1: Create a Google Cloud Project

1. Go to the Google Cloud Console
2. Click "Select a project" at the top of the page
3. Click "New Project" and give it a name (e.g., "MCP YouTube Extract")
4. Click "Create"

Step 2: Enable the YouTube Data API

1. In your new project, go to the API Library
2. Search for "YouTube Data API v3"
3. Click on it and then click "Enable"

Step 3: Create API Credentials

1. Go to the Credentials page
2. Click "Create Credentials" and select "API Key"
3. Your new API key will be displayed - copy it immediately
4. Click "Restrict Key" to secure it (recommended)

Step 4: Restrict Your API Key (Recommended)

1. In the API key settings, click "Restrict Key"
2. Under "API restrictions", select "Restrict key"
3. Choose "YouTube Data API v3" from the dropdown
4. Click "Save"

Step 5: Set Up Billing (May be required)

1. Go to the Billing page
2. Link a billing account to your project
3. Note: YouTube Data API has a free tier of ~10,000 units per day, which is typically sufficient for most use cases

API Key Usage Limits

• Free Tier: ~10,000 units per day (commonly)
• Cost: depends on your Google Cloud / billing configuration

Security Best Practices

• Never commit your API key to version control
• Use environment variables as shown in the MCP configuration section
• Restrict your API key to only the YouTube Data API
• Monitor usage in the Google Cloud Console

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Example MCP calls (JSON payloads)

Exact envelope depends on your MCP client; these show tool + arguments.

Resolve a channel

{
  "tool": "resolve_youtube_channel",
  "arguments": {
    "channel_ref": "@GoogleDevelopers",
    "resolution_mode": "strict",
    "include_uploads_playlist": true
  }
}

List channel videos (safe default)

{
  "tool": "list_youtube_channel_videos",
  "arguments": {
    "channel_ref": "@GoogleDevelopers",
    "max_videos": 50,
    "page_token": null,
    "include_shorts": false,
    "include_live": false,
    "parts_level": "basic",
    "order_strategy": "uploads_playlist",
    "order_by": "date"
  }
}

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Quota reference (best-effort)

This section is a best-effort summary and may change over time. Always verify with official documentation.

Last verified: 2026-02-18

Official references:

• YouTube Data API quota calculator / costs: https://developers.google.com/youtube/v3/determine_quota_cost
• Usage limits: https://developers.google.com/youtube/v3/getting-started#quota

Approximate quota usage by tool

Note: get_yt_video_info returns text (not structured JSON) and is not included in the quota table because its behavior depends on optional extractors.

Tool	Primary endpoints	Typical cost (rough)	Notes
resolve_youtube_channel	channels.list	~1	strict mode mostly channels.list; best_effort may use search.list
list_youtube_channel_videos (default)	channels.list + playlistItems.list + videos.list	~ (1 + 1 + 1) per page	uploads-playlist strategy
list_youtube_channel_videos (order_strategy=search_api)	search.list + videos.list	~ (100 + 1) per page	expensive; capped behavior
list_youtube_channel_playlists	playlists.list	~1 per page	public playlists only
list_youtube_playlist_videos	playlistItems.list + videos.list	~ (1 + 1) per page	public playlist
search_youtube_channel_videos	search.list + videos.list	~ (100 + 1) per page	keyword search within a channel
list_youtube_video_comments	commentThreads.list	~1 per page	comments may be disabled (403)

Daily quota:

• Common free quota: 10,000 units/day
• Reset: daily (Google-defined; see official docs/console)

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Testing

Use the venv interpreter to avoid accidentally running global pytest.

# recommended
python -m pytest -q

# if you use a venv
.venv\Scripts\python.exe -m pytest -q

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Troubleshooting

Only get_yt_video_info is visible (other tools missing)

Your MCP host is running an old installed copy from site-packages. Fix:

python -m pip install -e .

Then restart the MCP host.

YOUTUBE_API_KEY placeholder is not expanded in some MCP hosts

Some MCP hosts do not interpolate placeholders like ${YOUTUBE_API_KEY} inside mcp.json.

❌ Not recommended (may be taken literally):

{
  "env": { "YOUTUBE_API_KEY": "${YOUTUBE_API_KEY}" }
}

✅ Recommended (explicit value in config):

{
  "env": { "YOUTUBE_API_KEY": "YOUR_REAL_KEY_HERE" }
}

✅ Also works (set it in the host process environment, then reference nothing in JSON):

• set YOUTUBE_API_KEY in the MCP host environment (OS/IDE)
• then keep mcp.json without placeholders

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License

MIT — see LICENSE

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Acknowledgements

This project was originally derived from / inspired by https://github.com/sinjab/mcp_youtube_extract. The codebase has since been heavily rewritten and extended.