模型上下文协议服务器工具包

npm install @0xtresser/mcpx express

import express from 'express';
import { McpXServer, createMcpRequestHandler, createX402Middleware } from '@0xtresser/mcpx';

const server = new McpXServer({
  name: 'demo-server',
  version: '1.0.0',
  defaultPayTo: '0xYourAddress',
});

server.registerTool(
  'hello_world',
  { description: 'Greets back' },
  { price: '$0.001', network: 'base' },
  async () => ({ content: [{ type: 'text', text: 'Hello from MCP!' }] }),
);

const app = express();
app.use(express.json());
app.post(
  '/mcp',
  createX402Middleware(server),
  createMcpRequestHandler(() => server),
);

app.listen(3000, () => console.log('Server ready on http://localhost:3000/mcp'));

import { createX402Fetch } from '@0xtresser/mcpx';

const fetchWithPayments = await createX402Fetch({
  signer: {
    evm: {
      privateKey: process.env.X402_EVM_PRIVATE_KEY!,
      network: 'base-sepolia',
    },
  },
  onSettlement(info) {
    console.log('Settlement result:', info.decoded);
  },
});