server.js•1.66 kB
#!/usr/bin/env node
/**
* Simple MCP server for DXT testing
* Provides a hello tool
*/
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { CallToolRequestSchema, ListToolsRequestSchema } from "@modelcontextprotocol/sdk/types.js";
const server = new Server(
{
name: "hello-dxt-server",
version: "1.0.0",
},
{
capabilities: {
tools: {},
},
}
);
// List tools handler
server.setRequestHandler(ListToolsRequestSchema, async () => {
return {
tools: [
{
name: "hello",
description: "Returns a friendly greeting",
inputSchema: {
type: "object",
properties: {
name: {
type: "string",
description: "Name to greet",
default: "World"
}
}
}
}
]
};
});
// Call tool handler
server.setRequestHandler(CallToolRequestSchema, async (request) => {
const { name: toolName, arguments: args } = request.params;
if (toolName === "hello") {
const name = args?.name || "World";
return {
content: [
{
type: "text",
text: `Hello, ${name}! This greeting comes from a DXT package.`
}
]
};
}
throw new Error(`Unknown tool: ${toolName}`);
});
// Start the server
async function main() {
const transport = new StdioServerTransport();
await server.connect(transport);
console.error("Hello DXT server running on stdio");
}
main().catch((error) => {
console.error("Server error:", error);
process.exit(1);
});