Building Your First TypeScript MCP Server on Cloudflare Workers

export async function POST({ request }: { request: Request }) {
  const body = await request.json();
  if (body.method === "tools/list") {
    return Response.json({
      jsonrpc: "2.0",
      id: body.id,
      result: {
        tools: [
          {
            name: "search_catalog",
            description: "Search CodingCat.dev courses, podcasts, and blog posts",
            inputSchema: {
              type: "object",
              properties: { query: { type: "string" } },
              required: ["query"],
            },
          },
        ],
      },
    });
  }
  return Response.json({ jsonrpc: "2.0", id: body.id, result: { ok: true } });
}