index.ts•1.22 kB
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { YoutubeTranscript } from 'youtube-transcript';
import getVideoId from 'get-video-id';
import { z } from "zod";
// Create server instance
const server = new McpServer({
name: "mcp-server-template",
version: "0.0.1",
});
// Define a sample tool
server.tool(
"youtube-transcript-extractor",
"Extracts the transcript of a YouTube video.",
{
input: z.string().describe("a youtube video url"),
},
async ({ input }) => {
const videoData = getVideoId(input);
const output = await YoutubeTranscript.fetchTranscript(videoData.id as string).then((transcript: any) => {
const text = transcript.map((t: any) => t.text).join(' ');
return text;
});
return {
content: [
{
type: "text",
text: output,
},
],
};
}
);
async function main() {
const transport = new StdioServerTransport();
await server.connect(transport);
console.log("MCP Server running on stdio");
}
main().catch((error) => {
console.error("Fatal error in main():", error);
process.exit(1);
});