DeepSRT MCP Server

A Model Context Protocol (MCP) server that provides YouTube video summarization functionality through integration with DeepSRT's API.

Features

• Generate summaries for YouTube videos
• Support for both narrative and bullet-point summary modes
• Multi-language support (default: zh-tw)
• Seamless integration with MCP-enabled environments

How it Works

1. Content Caching

   • Videos must first be opened through DeepSRT to ensure content is cached in the service
   • This initial viewing triggers the caching process in the DeepSRT service

2. MCP Summary Retrieval

   • When requesting summaries through MCP, the content is served from DeepSRT's CDN edge locations
   • This ensures fast and efficient delivery of summaries

3. Pre-cached Content

   • Some videos may already be cached in the system from previous user requests
   • While you might be able to fetch summaries for these pre-cached videos, availability is not guaranteed
   • For best results, ensure videos are first opened through DeepSRT

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sequenceDiagram
    participant User
    participant DeepSRT
    participant Cache as DeepSRT Cache/CDN
    participant MCP as MCP Client

    Note over User,MCP: Step 1: Initial Caching
    User->>DeepSRT: Open video through DeepSRT
    DeepSRT->>Cache: Process and cache content
    Cache-->>DeepSRT: Confirm cache storage
    DeepSRT-->>User: Display video/content

    Note over User,MCP: Step 2: MCP Summary Retrieval
    MCP->>Cache: Request summary via MCP
    Cache-->>MCP: Return cached summary from edge location

    Note over User,MCP: Alternative: Pre-cached Content
    rect rgba(31, 41, 55, 0.6)
        MCP->>Cache: Request summary for pre-cached video
        alt Content exists in cache
            Cache-->>MCP: Return cached summary
        else Content not cached
            Cache-->>MCP: Cache miss
        end
    end

Installation

Installing for Claude Desktop

1. First, build the server:

npm install
npm run build

2. Add the server configuration to your Claude Desktop config file:

• On macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "deepsrt-mcp": {
      "command": "node",
      "args": [
        "/path/to/deepsrt-mcp/build/index.js"
      ]
    }
  }
}

Installing for Cline

Just ask Cline to install in the chat:

"Hey, install this MCP server for me from https://github.com/DeepSRT/deepsrt-mcp"

Cline will auto install deepsrt-mcp for you and update your cline_mcp_settings.json.

Usage

The server provides the following tool:

get_summary

Gets a summary for a YouTube video.

Parameters:

• videoId (required): YouTube video ID
• lang (optional): Language code (e.g., zh-tw) - defaults to zh-tw
• mode (optional): Summary mode ("narrative" or "bullet") - defaults to narrative

Example Usage

Using Claude Desktop:

// The MCP tool will fetch the video summary
const result = await mcp.use_tool("deepsrt-mcp", "get_summary", {
  videoId: "dQw4w9WgXcQ",
  lang: "zh-tw",
  mode: "narrative"
});

Using Cline:

const result = await mcp.use_tool("deepsrt", "get_summary", {
  videoId: "dQw4w9WgXcQ",
  lang: "zh-tw",
  mode: "bullet"
});

Development

Install dependencies:

npm install

Start development server:

npm run dev

Build for production:

npm run build

Demo

• https://www.threads.net/@pahud/post/DGmIR7gOG5M
• https://www.threads.net/@pahud/post/DGoGiMDuWa9

FAQ

Q: I am getting 404 error, why?

A: This is because the video summary is not cached in the CDN edge location, you need to open this video using DeepSRT chrome extension to have it cached in the CDN network before you can get that summary using MCP.

You can verify the cache status using cURL like this

curl -s 'https://worker.deepsrt.com/transcript' \
-i --data '{"arg":"v=VafNvIcOs5w","action":"summarize","lang":"zh-tw","mode":"narrative"}' | grep -i "^cache-status"
cache-status: HIT

If you see cache-status: HIT the content is cached in the CDN edge location and your MCP server shoud not get 404.