@stophy/mcp

@stophy/mcp

YouTube data for AI agents. Transcripts, comments, search, channels, playlists — all as structured JSON through the Model Context Protocol.

How to connect

Two ways. Pick one.

Option 1: hosted HTTP (zero install)

Give your MCP client this URL. Your API key goes in the path.

https://mcp.stophy.dev/$STOPHY_API_KEY/mcp

MCP client config:

{
  "mcpServers": {
    "stophy": {
      "url": "https://mcp.stophy.dev/$STOPHY_API_KEY/mcp"
    }
  }
}

No install. No Node.js. Works anywhere that speaks HTTP MCP.

Get an API key at stophy.dev/dashboard.

Option 2: run it locally (stdio)

Your MCP client runs @stophy/mcp as a local process. The API key goes in the environment.

env STOPHY_API_KEY=$STOPHY_API_KEY npx -y @stophy/mcp

Or install it once:

npm install -g @stophy/mcp
env STOPHY_API_KEY=$STOPHY_API_KEY stophy-mcp

Client configs

Pick your MCP client.

Claude Desktop

File: claude_desktop_config.json

• macOS: ~/Library/Application Support/Claude/
• Windows: %APPDATA%\Claude\

{
  "mcpServers": {
    "stophy": {
      "command": "npx",
      "args": ["-y", "@stophy/mcp"],
      "env": {
        "STOPHY_API_KEY": "your_api_key_here"
      }
    }
  }
}

If Claude Desktop says spawn npx ENOENT, Node.js is missing from PATH. Install the LTS from nodejs.org and restart Claude Desktop completely.

Claude Code

Stdio:

claude mcp add stophy -e STOPHY_API_KEY=$STOPHY_API_KEY -- npx -y @stophy/mcp

HTTP (if your Claude Code version supports remote MCP):

claude mcp add --transport http stophy https://mcp.stophy.dev/$STOPHY_API_KEY/mcp

Cursor

File: .cursor/mcp.json (per project) or ~/.cursor/mcp.json (global)

{
  "mcpServers": {
    "stophy": {
      "command": "npx",
      "args": ["-y", "@stophy/mcp"],
      "env": {
        "STOPHY_API_KEY": "$STOPHY_API_KEY"
      }
    }
  }
}

Windsurf

File: ~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "stophy": {
      "command": "npx",
      "args": ["-y", "@stophy/mcp"],
      "env": {
        "STOPHY_API_KEY": "$STOPHY_API_KEY"
      }
    }
  }
}

Hermes Agent

Add to config.yaml under mcp_servers:

mcp_servers:
  - name: stophy
    command: npx
    args: ["-y", "@stophy/mcp"]
    env:
      STOPHY_API_KEY: your_api_key_here

Any other MCP client

If your client takes a command + args + env block, use the pattern above. If it takes a URL, use the hosted endpoint.

Available tools

Six tools. Each call costs one credit except stophy_get_credits which is free.

Tool	What it does
stophy_search_videos	Search YouTube by keyword. Returns videos, channels, playlists, or Shorts with pagination.
stophy_get_video	Get details, transcript, comments, comment replies, or live chat for one video.
stophy_get_channel	Browse a channel's videos, Shorts, playlists, or about page.
stophy_get_playlist	Fetch every video in a playlist.
stophy_get_suggestions	YouTube autocomplete for a partial query.
stophy_get_credits	Your remaining credit balance. Free.

Tool reference

stophy_search_videos

Search YouTube. Use this to discover videos on a topic or find recent uploads. Not for fetching a specific video you already have the URL for — use stophy_get_video instead.

Arguments:

• q (required): what to search for
• type: "video", "short", "channel", or "playlist"
• uploadDate: "hour", "today", "week", "month", or "year"
• duration: "short", "medium", or "long"
• sortBy: "relevance", "popularity", "date", or "rating"
• continuationToken: token from previous response for the next page

{
  "q": "typescript tutorial",
  "uploadDate": "week",
  "type": "video"
}

Returns items[] and an optional continuationToken.

stophy_get_video

Get details, transcript, comments, comment replies, or live chat for a known video.

Arguments:

• videoUrl (required): YouTube video URL or ID
• type (required): "details", "transcript", "comments", or "livechat"
• sortBy: "top" or "latest" for comments
• chatType: "top" or "live" for live chat
• continuationToken: next page of comments, or a comment's repliesToken for replies

Transcript:

{
  "videoUrl": "https://youtube.com/watch?v=d56mG7DezGs",
  "type": "transcript"
}

Comments:

{
  "videoUrl": "https://youtube.com/watch?v=d56mG7DezGs",
  "type": "comments",
  "sortBy": "top"
}

For comment replies, call again with type: "comments" and set continuationToken to the comment's repliesToken.

stophy_get_channel

Browse a channel.

Arguments:

• channelUrl (required): channel URL, handle (@username), or channel ID
• tab: "video", "short", "playlist", or "about" (default: "video")
• sortBy: "latest", "popular", or "oldest" for the video tab
• continuationToken: next page

{
  "channelUrl": "https://youtube.com/@t3dotgg",
  "tab": "video",
  "sortBy": "latest"
}

The about tab returns the channel's country, join date, view count, and links.

stophy_get_playlist

All videos in a playlist.

Arguments:

• playlistUrl (required): playlist URL or ID
• continuationToken: next page

{
  "playlistUrl": "https://youtube.com/playlist?list=PLTjRvDozrdlxEIuOBZkMAK5uiqp8rHUax"
}

stophy_get_suggestions

YouTube autocomplete. Good for topic discovery and query expansion.

Arguments:

• q (required): partial query
• hl: language code, default en
• gl: region code, default US

{
  "q": "react hooks",
  "hl": "en",
  "gl": "US"
}

Pagination

Any tool that returns continuationToken supports pagination. Pass the token back with the same arguments to get the next page. A missing or null token means you've reached the end.

Empty results

When a video has no transcript, comments are off, or a comment has no replies, Stophy returns an empty object:

{
  "empty": {
    "code": "EMPTY_TRANSCRIPT_SEGMENTS",
    "message": "No transcript segments found."
  }
}

Possible codes: EMPTY_TRANSCRIPT_SEGMENTS, EMPTY_COMMENTS, EMPTY_COMMENT_REPLIES.

Errors

Errors come back as text in the MCP tool response:

Stophy error (UNAUTHORIZED): Invalid API key.

Stophy error (MISSING_API_KEY): No Stophy API key provided. Set STOPHY_API_KEY (stdio) or include your key in the URL path (hosted). Get a key at https://stophy.dev/dashboard.

Environment variables

Variable	Required	What it is
STOPHY_API_KEY	Stdio only	Your Stophy API key. Not needed for hosted — the key is in the URL path.