From 47e67ae25ac8f3c76ca542a3fc8bc522fec89dcc Mon Sep 17 00:00:00 2001 From: kevinwatt Date: Tue, 11 Feb 2025 02:40:43 +0800 Subject: [PATCH] first commit --- README.md | 37 ++ eslint.config.mjs | 88 ++++ package-lock.json | 1169 +++++++++++++++++++++++++++++++++++++++++++++ package.json | 30 ++ src/index.mts | 190 ++++++++ tsconfig.json | 28 ++ 6 files changed, 1542 insertions(+) create mode 100644 README.md create mode 100644 eslint.config.mjs create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 src/index.mts create mode 100644 tsconfig.json diff --git a/README.md b/README.md new file mode 100644 index 0000000..6b88562 --- /dev/null +++ b/README.md @@ -0,0 +1,37 @@ +# YouTube MCP Server + +Uses `yt-dlp` to download YouTube content and connects it to LLMs via [Model Context Protocol](https://modelcontextprotocol.io/introduction). + +## Features + +- Download YouTube subtitles (SRT format) for LLMs to read +- Download YouTube videos to your Downloads folder +- Integrates with Claude.ai and other MCP-compatible LLMs + +## Installation + +1. Install `yt-dlp` (Homebrew and WinGet both work great here) +2. Install this via [dive](https://github.com/OpenAgentPlatform/Dive): + ```bash + mcp-installer install @kevinwatt/yt-dlp-mcp + ``` + +## Usage Examples + +Ask your LLM to: +- "Summarize the YouTube video <>" +- "Download this YouTube video: <>" + +## Manual Start + +If needed, you can start the server manually: +```bash +yt-dlp-mcp +``` + +## Requirements + +- `yt-dlp` installed and in PATH +- Node.js 20+ +- MCP-compatible LLM service + diff --git a/eslint.config.mjs b/eslint.config.mjs new file mode 100644 index 0000000..af5670b --- /dev/null +++ b/eslint.config.mjs @@ -0,0 +1,88 @@ +import typescriptEslint from "@typescript-eslint/eslint-plugin"; +import prettier from "eslint-plugin-prettier"; +import tsParser from "@typescript-eslint/parser"; +import path from "node:path"; +import { fileURLToPath } from "node:url"; +import js from "@eslint/js"; +import { FlatCompat } from "@eslint/eslintrc"; + +const __filename = fileURLToPath(import.meta.url); +const __dirname = path.dirname(__filename); +const compat = new FlatCompat({ + baseDirectory: __dirname, + recommendedConfig: js.configs.recommended, + allConfig: js.configs.all, +}); + +export default [ + ...compat.extends( + "eslint:recommended", + "prettier", + "plugin:@typescript-eslint/eslint-recommended", + "plugin:@typescript-eslint/recommended", + ), + { + files: ["./src/*.{ts,tsx}", "./test/*.{ts,tsx}"], + plugins: { + "@typescript-eslint": typescriptEslint, + prettier, + }, + + languageOptions: { + globals: {}, + parser: tsParser, + ecmaVersion: 5, + sourceType: "script", + + parserOptions: { + project: "./tsconfig.json", + }, + }, + + rules: { + "prettier/prettier": "warn", + + "spaced-comment": [ + "error", + "always", + { + markers: ["/"], + }, + ], + + "no-fallthrough": "error", + "@typescript-eslint/ban-ts-comment": "warn", + + "@typescript-eslint/consistent-type-imports": [ + "error", + { + prefer: "type-imports", + }, + ], + + "@typescript-eslint/no-inferrable-types": [ + "error", + { + ignoreParameters: false, + ignoreProperties: false, + }, + ], + + "@typescript-eslint/no-non-null-assertion": "off", + "@typescript-eslint/no-floating-promises": "error", + + "@typescript-eslint/no-unused-vars": [ + "warn", + { + args: "after-used", + argsIgnorePattern: "^_", + varsIgnorePattern: "^_", + ignoreRestSiblings: true, + }, + ], + + "@typescript-eslint/no-empty-function": ["error"], + "@typescript-eslint/restrict-template-expressions": "off", + }, + }, +]; diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..bbfbadb --- /dev/null +++ b/package-lock.json @@ -0,0 +1,1169 @@ +{ + "name": "@kevinwatt/yt-dlp-mcp", + "version": "0.5.1", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "@kevinwatt/yt-dlp-mcp", + "version": "0.5.1", + "license": "MIT", + "dependencies": { + "@modelcontextprotocol/sdk": "0.7.0", + "rimraf": "^6.0.1", + "spawn-rx": "^4.0.0" + }, + "bin": { + "yt-dlp-mcp": "lib/index.mjs" + }, + 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"MIT", + "type": "module", + "exports": { + ".": { + "import": "./lib/index.mjs" + } + }, + "dependencies": { + "@modelcontextprotocol/sdk": "0.7.0", + "rimraf": "^6.0.1", + "spawn-rx": "^4.0.0" + }, + "devDependencies": { + "shx": "^0.3.4", + "ts-node": "^10.9.2", + "typescript": "^5.6.3" + } +} diff --git a/src/index.mts b/src/index.mts new file mode 100644 index 0000000..d3e9635 --- /dev/null +++ b/src/index.mts @@ -0,0 +1,190 @@ +#!/usr/bin/env node + +import { Server } from "@modelcontextprotocol/sdk/server/index.js"; +import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js"; +import { + CallToolRequestSchema, + ListToolsRequestSchema, +} from "@modelcontextprotocol/sdk/types.js"; +import type { CallToolRequest } from "@modelcontextprotocol/sdk/types.js"; + +import * as os from "os"; +import * as fs from "fs"; +import * as path from "path"; +import { spawnPromise } from "spawn-rx"; +import { rimraf } from "rimraf"; + +const server = new Server( + { + name: "yt-dlp-mcp", + version: "0.5.1", + }, + { + capabilities: { + tools: {}, + }, + } +); + +/** + * Returns the list of available tools. + */ +server.setRequestHandler(ListToolsRequestSchema, async () => { + return { + tools: [ + { + name: "download_youtube_srt", + description: + "Download YouTube subtitles in SRT format so that LLM can read them.", + inputSchema: { + type: "object", + properties: { + url: { type: "string", description: "URL of the YouTube video" }, + }, + required: ["url"], + }, + }, + { + name: "download_youtube_video", + description: + "Download YouTube video to the user's default Downloads folder (usually ~/Downloads).", + inputSchema: { + type: "object", + properties: { + url: { type: "string", description: "URL of the YouTube video" }, + }, + required: ["url"], + }, + }, + ], + }; +}); + +/** + * Downloads YouTube subtitles (SRT format) and returns the concatenated content. + * @param url The URL of the YouTube video. + * @returns Concatenated subtitles text. + */ +async function downloadSubtitles(url: string): Promise { + // Create a temporary directory for subtitle downloads + const tempDirectory = fs.mkdtempSync(path.join(os.tmpdir(), "youtube-")); + + // Use yt-dlp to download subtitles without downloading the video + await spawnPromise( + "yt-dlp", + [ + "--write-sub", + "--write-auto-sub", + "--sub-lang", + "en", + "--skip-download", + "--sub-format", + "srt", + url, + ], + { cwd: tempDirectory, detached: true } + ); + + let subtitlesContent = ""; + try { + const files = fs.readdirSync(tempDirectory); + for (const file of files) { + const filePath = path.join(tempDirectory, file); + const fileData = fs.readFileSync(filePath, "utf8"); + subtitlesContent += `${file}\n====================\n${fileData}\n\n`; + } + } finally { + // Clean up the temporary directory after processing + rimraf.sync(tempDirectory); + } + return subtitlesContent; +} + +/** + * Downloads a YouTube video to the user's default Downloads folder. + * @param url The URL of the YouTube video. + * @returns A success message. + */ +async function downloadVideo(url: string): Promise { + // Determine the user's Downloads directory (works for Windows, macOS, and Linux by default) + const userDownloadsDir = path.join(os.homedir(), "Downloads"); + + // Use yt-dlp to download the video into the Downloads folder using a default filename template + await spawnPromise("yt-dlp", [ + url, + "-o", + path.join(userDownloadsDir, "%(title)s.%(ext)s"), + ]); + + return `Video successfully downloaded to ${userDownloadsDir}`; +} + +/** + * Handles tool execution requests. + */ +server.setRequestHandler( + CallToolRequestSchema, + async (request: CallToolRequest) => { + const toolName = request.params.name; + const args = request.params.arguments as { url: string }; + + if (toolName === "download_youtube_srt") { + try { + const subtitles = await downloadSubtitles(args.url); + return { + content: [ + { + type: "text", + text: subtitles, + }, + ], + }; + } catch (error) { + return { + content: [ + { + type: "text", + text: `Error downloading subtitles: ${error}`, + }, + ], + isError: true, + }; + } + } else if (toolName === "download_youtube_video") { + try { + const message = await downloadVideo(args.url); + return { + content: [ + { + type: "text", + text: message, + }, + ], + }; + } catch (error) { + return { + content: [ + { + type: "text", + text: `Error downloading video: ${error}`, + }, + ], + isError: true, + }; + } + } else { + throw new Error(`Unknown tool: ${toolName}`); + } + } +); + +/** + * Starts the server using Stdio transport. + */ +async function startServer() { + const transport = new StdioServerTransport(); + await server.connect(transport); +} + +// Start the server and handle potential errors +startServer().catch(console.error); diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..fb15ef5 --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,28 @@ +{ + "compilerOptions": { + "removeComments": false, + 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