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YouTube MCP Server

YouTube MCP Server

by DivyaV18

YouTube MCP Server

A Python Model Context Protocol (MCP) server that exposes YouTube Data API tools. Use it from MCP Inspector, Cursor, or any MCP client.

Tool reference: Composio YouTube Toolkit


Table of contents


Related MCP server: mcp-apps

Project structure

youtube mcp/
├── src/youtubemcp/
│   ├── config.py       # OAuth2, .env, YouTube API client
│   ├── mcp.py          # FastMCP instance
│   ├── main.py         # Entry point
│   └── tools/         # Tool modules (channel, captions, playlists, etc.)
├── .env                # Your credentials (create from .env.example)
├── .env.example        # Template for .env
├── pyproject.toml
├── requirements.txt
├── run.py              # Run server: python run.py
└── README.md

Prerequisites

  • Python 3.10+

  • Google account (for YouTube / OAuth2)

  • uv (optional, for uv run) or pip


Installation

Option A: Using pip

cd "d:\clg files\PROJECTS\youtube mcp"
python -m venv .venv
.venv\Scripts\activate
pip install -r requirements.txt

Option B: Using uv

cd "d:\clg files\PROJECTS\youtube mcp"
uv sync

Getting OAuth2 credentials

Follow these steps to get Client ID and Client Secret from Google Cloud.

Step 1: Open Google Cloud Console

  1. Go to Google Cloud Console.

  2. Sign in with the Google account you want to use for YouTube.

Step 2: Create or select a project

  1. At the top, click the project dropdown (next to “Google Cloud”).

  2. Click New Project.

  3. Enter a name (e.g. YouTube MCP) and click Create.

  4. Select this project from the dropdown so it’s the active project.

Step 3: Enable YouTube Data API v3

  1. In the left menu: APIs & Services → Library
    Or go to: APIs Library.

  2. Search for YouTube Data API v3.

  3. Click it, then click Enable.

  1. In the left menu: APIs & Services → OAuth consent screen.

  2. Choose External (unless you use Google Workspace and want Internal only).

  3. Click Create.

  4. App information

    • App name: e.g. YouTube MCP

    • User support email: your email

    • Developer contact: your email

  5. Click Save and Continue.

  6. Scopes

    • Click Add or Remove Scopes.

    • Filter or search for YouTube Data API v3.

    • Add at least:

      • View your YouTube account (.../auth/youtube.readonly)

      • See, edit, and permanently delete your YouTube videos, ratings, comments and captions (.../auth/youtube.force-ssl)

      • Manage your YouTube videos (.../auth/youtube.upload) — needed for uploads and thumbnails

    • Click Update → Save and Continue.

  7. Test users (required while app is in Testing)

    • Click Add Users.

    • Add the Gmail address you will use to sign in (e.g. yourname@gmail.com).

    • Click Save and Continue.

  8. Click Back to Dashboard.

Step 5: Create OAuth 2.0 Client ID

  1. In the left menu: APIs & Services → Credentials.

  2. Click + Create Credentials → OAuth client ID.

  3. Application type: Desktop app.

  4. Name: e.g. YouTube MCP desktop.

  5. Click Create.

  6. In the popup, copy:

    • Client ID (looks like 123456789-xxxx.apps.googleusercontent.com)

    • Client secret (looks like GOCSPX-xxxxxxxxxxxxxxxx)

Keep these for the next section.


Configuration (.env)

  1. Copy the example env file:

    copy .env.example .env

    (On macOS/Linux: cp .env.example .env)

  2. Open .env and set your credentials:

    client_id=YOUR_CLIENT_ID.apps.googleusercontent.com
    client_secret=YOUR_CLIENT_SECRET
  3. Optional variables:

    Variable

    Description

    oauth_redirect_uri

    Redirect URI (default: http://localhost)

    scopes

    Comma-separated OAuth scopes (default includes readonly; add https://www.googleapis.com/auth/youtube.force-ssl and https://www.googleapis.com/auth/youtube.upload for full features)

    Example for full access (read, write, upload, thumbnails):

    scopes=https://www.googleapis.com/auth/youtube.readonly,https://www.googleapis.com/auth/youtube.force-ssl,https://www.googleapis.com/auth/youtube.upload
  4. First run: When you start the server, a browser window will open. Sign in with the same Google account you added as a test user and approve the requested permissions. The app will save tokens to token.json (created automatically; do not commit it).


Running the server

From the project root:

python run.py

Or, if you use uv:

uv run run.py

The server runs over STDIO by default (for MCP Inspector and Cursor). It will wait for input; close with Ctrl+C when done.


MCP Inspector

  1. Start MCP Inspector:

    npx -y @modelcontextprotocol/inspector
  2. In the Inspector:

    • Transport: STDIO

    • Command: uv (or python)

    • Arguments: run run.py (or run.py if Command is python)

    • Ensure the working directory is the project root (where run.py and .env are).

  3. Click Connect. The server starts; on first run, a browser may open for Google sign-in.

  4. Call any tool (e.g. get_channel_id_by_handle with @YouTube) to verify.


Cursor MCP config

Add the server to Cursor so it can call YouTube tools.

  1. Open Cursor Settings → MCP (or edit your MCP config file).

  2. Add a server entry, for example:

    {
      "mcpServers": {
        "youtube": {
          "command": "C:\\path\\to\\youtube mcp\\.venv\\Scripts\\python.exe",
          "args": ["C:\\path\\to\\youtube mcp\\run.py"],
          "env": {
            "YOUTUBE_CLIENT_ID": "YOUR_CLIENT_ID",
            "YOUTUBE_CLIENT_SECRET": "YOUR_CLIENT_SECRET"
          }
        }
      }
    }

    Replace C:\\path\\to\\youtube mcp with your actual project path. You can omit env if .env is in the project root and Cursor runs from there.

  3. Restart Cursor or reload MCP; the YouTube tools should appear.


Tools overview

All tools return an object with data (object), error (string, optional), and successful (boolean).

Tool

Description

get_channel_activities

Recent activities for a channel (uploads, playlists, likes).

get_channel_id_by_handle

Get channel ID from handle (e.g. @Google).

get_channel_statistics

Channel stats (subscribers, views, video count).

list_channel_videos

List videos from a channel.

list_captions

List caption tracks for a video (your videos).

download_caption_track

Download caption content by track ID (your videos).

list_user_playlists

Playlists owned by the authenticated user.

list_user_subscriptions

Channels the authenticated user is subscribed to.

subscribe_to_channel

Subscribe the authenticated user to a channel.

search_youtube

Search videos, channels, or playlists.

update_thumbnail

Set custom thumbnail from image URL (your videos).

update_video

Update video metadata (title, description, tags, privacy).

upload_video

Upload a video from a local file path.

video_details

Get video details (snippet, statistics, etc.) by video ID.


Troubleshooting

"Access blocked" or "Error 403: access_denied"

  • Your app is in Testing mode. Add your Google account under OAuth consent screen → Test users and try again.

"Request had insufficient authentication scopes"

  • Add the needed scope to OAuth consent screen (e.g. youtube.force-ssl, youtube.upload).

  • Delete token.json, then run the server again and sign in to get a new token with the new scopes.

"The authenticated user doesn't have permissions to upload and set custom video thumbnails"

  • Add scope Manage your YouTube videos (youtube.upload) in the OAuth consent screen.

  • Delete token.json and sign in again.

  • Ensure your YouTube channel is verified (e.g. phone verification in YouTube Studio → Settings → Channel).

"YouTube Data API v3 has not been used in project ... or it is disabled"

  • In APIs Library, enable YouTube Data API v3 for the same project that has your OAuth client.

Invalid scope (e.g. scopes=https://... in error)

  • In .env, the scopes value must be only the comma-separated URLs, e.g.
    scopes=https://www.googleapis.com/auth/youtube.readonly,https://www.googleapis.com/auth/youtube.force-ssl
    Do not repeat the word scopes= inside the value.

Token refresh

  • Access tokens expire in about an hour. The server refreshes them automatically using token.json. If you change scopes or get auth errors, delete token.json and sign in again.

.env and token.json location

  • Both must be in the project root (same folder as run.py). The server loads them from there.


License

MIT

Available Tools

14 tools
download_caption_trackA

Downloads a specific YouTube caption track, which must be owned by the authenticated user, and returns its content as text.

Args: id: Unique YouTube-assigned ID of the caption track to download (from list_captions response). tfmt: Desired format: 'srt' (SubRip), 'sbv' (SubViewer), 'vtt' (WebVTT). Default: 'srt'.

Returns: Object with 'data' (contains 'content' with caption text), 'error' (if any), and 'successful' boolean.

Inputs: id (required), tfmt. Returns: object

get_channel_activitiesA

Gets recent activities from a YouTube channel including video uploads, playlist additions, likes, and other channel events.

Args: channel_id: The YouTube channel ID to retrieve activities for. Channel IDs typically start with 'UC'. max_results: Maximum number of activities to return (0-50). page_token: Pagination token from a previous response to get the next page. part: Comma-separated list of activity resource properties to include (e.g., 'snippet', 'contentDetails', 'id'). published_after: Return activities published after this date-time (RFC 3339 format: YYYY-MM-DDTHH:MM:SSZ). published_before: Return activities published before this date-time (RFC 3339 format: YYYY-MM-DDTHH:MM:SSZ).

Returns: Object with 'data', 'error' (if any), and 'successful' boolean.

Inputs: channel_id (required), part, page_token, max_results, +2 more. Returns: object

get_channel_id_by_handleA

Retrieves the YouTube channel ID for a specific YouTube channel handle.

Args: channel_handle: The YouTube channel handle (e.g., @Google) for which to retrieve the corresponding channel ID. May include or omit the '@' symbol.

Returns: Object with 'data' (channel info including id), 'error' (if any), and 'successful' boolean.

Inputs: channel_handle (required). Returns: object

get_channel_statisticsA

Gets detailed statistics for YouTube channels including subscriber counts, view counts, and video counts.

Args: id: Comma-separated list of YouTube channel IDs. Channel IDs typically start with 'UC'. part: Comma-separated list of channel resource properties to include. Use 'statistics' for subscriber count. Default: 'statistics,snippet'.

Returns: Object with 'data' (channel stats), 'error' (if any), and 'successful' boolean.

Inputs: id (required), part. Returns: object

list_captionsA

Retrieves a list of caption tracks for a YouTube video. Returns an empty list if no captions exist, or fails if the video ID is invalid or not found.

Args: video_id: The YouTube video ID for which to return caption tracks. part: Comma-separated list of caption resource parts to include. Valid parts are 'id' and 'snippet'. Default: 'id,snippet'.

Returns: Object with 'data' (caption list), 'error' (if any), and 'successful' boolean.

Inputs: video_id (required), part. Returns: object

list_channel_videosA

Lists videos from a specified YouTube channel, ensuring results are of type 'video'.

Args: channel_id: The unique ID of the YouTube channel for which videos are to be retrieved. max_results: Maximum number of videos to return per page (default 5, max 50). page_token: Token for pagination; use nextPageToken from a previous response. part: Search resource properties to include; must be 'snippet' for this action.

Returns: Object with 'data' (video list), 'error' (if any), and 'successful' boolean.

Inputs: channel_id (required), part, page_token, max_results. Returns: object

list_user_playlistsA

Retrieves playlists owned by the authenticated user, implicitly using mine=true.

Args: max_results: Maximum number of playlists to return (0-50). Default: 5. page_token: Token for pagination to retrieve a specific page of results. part: Comma-separated list of playlist resource properties to include. Common values are 'snippet', 'id', and 'contentDetails'. Default: 'snippet,contentDetails'.

Returns: Object with 'data' (playlist list), 'error' (if any), and 'successful' boolean.

Inputs: part, page_token, max_results. Returns: object

list_user_subscriptionsA

Retrieves the authenticated user's YouTube channel subscriptions, allowing specification of response parts and pagination.

Args: max_results: Maximum number of subscription items to return per page (0-50). Default: 5. page_token: Token for a specific page of results, obtained from a previous response. part: Comma-separated subscription resource parts to include. Valid parts are 'id', 'snippet', 'contentDetails', and 'subscriberSnippet'. Default: 'snippet,contentDetails'.

Returns: Object with 'data' (subscription list), 'error' (if any), and 'successful' boolean.

Inputs: part, page_token, max_results. Returns: object

search_youtubeA

Searches YouTube for videos, channels, or playlists using a query term, returning the raw API response.

Args: q: Search query term. Supports: basic text ('machine learning'), exact phrases ('"exact phrase"'), exclusions ('python -snake'), multiple terms ('AI OR ML'), channel search ('@channelhandle' or channel name). max_results: Maximum number of items to return per page (0-50). Default: 5. page_token: Pagination token from a previous response's nextPageToken or prevPageToken. part: Comma-separated list of search resource properties (e.g. 'id', 'snippet') to include. type: Restrict search to 'video', 'channel', or 'playlist'; comma-separate for multiple.

Returns: Object with 'data' (raw API response), 'error' (if any), and 'successful' boolean.

Inputs: q (required), part, type, page_token, +1 more. Returns: object

subscribe_to_channelA

Subscribes the authenticated user to a specified YouTube channel, identified by its unique channelId which must be valid and existing.

Args: channel_id: Unique identifier (ID) of the YouTube channel to subscribe to (typically starts with 'UC').

Returns: Object with 'data' (subscription resource), 'error' (if any), and 'successful' boolean.

Inputs: channel_id (required). Returns: object

update_thumbnailA

Sets the custom thumbnail for a YouTube video using an image from thumbnailUrl. The authenticated user must have permission to edit the video.

Args: thumbnail_url: Publicly accessible URL of the new thumbnail image. Must be JPG, GIF, or PNG; under 2MB. Recommended: 16:9, 1280x720 (min 640px width). video_id: Identifier of the YouTube video for which to update the thumbnail.

Returns: Object with 'data' (thumbnail resource), 'error' (if any), and 'successful' boolean.

Inputs: video_id (required), thumbnail_url (required). Returns: object

update_videoA

Updates metadata for a YouTube video identified by videoId, which must exist. An empty list for tags removes all existing tags. Omitted fields are left unchanged.

Args: video_id: The video's unique YouTube ID (typically found in its URL). title: New video title. No change if omitted. description: New video description. No change if omitted. tags: New tags, replacing all existing. An empty list removes all. No change if omitted. category_id: New YouTube category ID. No change if omitted. privacy_status: New privacy status ('public', 'private', or 'unlisted'). No change if omitted.

Returns: Object with 'data' (updated video resource), 'error' (if any), and 'successful' boolean.

Inputs: video_id (required), tags, title, category_id, +2 more. Returns: object

upload_videoA

Uploads a video from a local file path to a YouTube channel. The video file must be in a YouTube-supported format (e.g. MP4, MOV, AVI).

Args: video_file_path: Local file path (absolute or relative) of the video to upload. title: The title for the video. description: Detailed description of the video content. tags: List of keyword tags (strings) for the video. category_id: YouTube category ID (e.g. '22' for People & Blogs). privacy_status: 'public', 'private', or 'unlisted'.

Returns: Object with 'data' (uploaded video resource), 'error' (if any), and 'successful' boolean.

Inputs: tags (required), title (required), category_id (required), description (required), +2 more. Returns: object

video_detailsA

Retrieves specified information parts (e.g., snippet, contentDetails, statistics) for a YouTube video, identified by its id.

Args: id: The YouTube video ID (typically 11 characters) for which to retrieve details. part: Comma-separated list of video resource parts to include. Valid parts: 'snippet', 'contentDetails', 'statistics', 'status', 'player', etc. Default: 'snippet,contentDetails,statistics'.

Returns: Object with 'data' (video resource), 'error' (if any), and 'successful' boolean.

Inputs: id (required), part. Returns: object

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    TDQS

    A4.1/5.0

    Scored across 14 tools

    Disambiguation5/5

    All tools target distinct resources and actions. Channel stats, activities, videos, playlists, subscriptions, captions, search, upload, and update are clearly separated with no overlapping purposes.

    Naming Consistency4/5

    Most tools follow a consistent verb_noun snake_case pattern (get_channel_statistics, list_channel_videos, update_video). One outlier is 'video_details' which is a noun phrase rather than verb-first, but it's readable and doesn't cause confusion.

    Tool Count5/5

    14 tools is well within the ideal range and matches the broad YouTube API scope. Each tool covers a significant operation, and no redundant tools are present.

    Completeness3/5

    The set covers read operations comprehensively (search, details, lists) and includes upload/update for videos. However, missing delete operations (videos, playlists, subscriptions, captions) and playlist creation/modification are notable gaps that limit full lifecycle management.

    Maintenance

    ActivityInactive
    ResponsivenessNo recent community issues

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