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/**
 * Cloudflare Workers - MCP Server with JSON-RPC 2.0
 * Model Context Protocol Remote Server Implementation
 */

export default {
  async fetch(request, env, ctx) {
    // CORS headers
    const corsHeaders = {
      'Access-Control-Allow-Origin': '*',

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const start = async function() {
  try{
      const item = {
        "jsonrpc": "2.0",
        "method": "tools/list",
        "id": 2
      }
      const response = await fetch("http://localhost:3000/mcp", {

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mcp_5

Version: 0.9.1

date : 2025/10/16

---

GoLang remoto MCP Server , example

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[package]
name = "rust_remoto_mcp_1"
version = "0.1.0"
edition = "2024"

[dependencies]
anyhow = "1.0.100"
axum = "0.7.5"
axum-extra = { version = "0.10.1", features = ["cookie"] }
chrono = { version = "0.4", features = ["serde"] }

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const start = async function() {
  try{
      const item = {
        "jsonrpc": "2.0",
        "method": "tools/list",
        "id": 1
      }      
      const response = await fetch("http://localhost:3000/mcp", {
      method: 'POST',

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import { spawn } from "child_process";

class RpcClient {
  constructor(command) {
    this.proc = spawn(command);
    this.idCounter = 1;
    this.pending = new Map();

    this.proc.stdout.setEncoding("utf8");
    this.proc.stdout.on("data", (data) => this._handleData(data));

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import { spawn } from "child_process";

class RpcClient {
  constructor(command) {
    this.proc = spawn(command);
    this.idCounter = 1;
    this.pending = new Map();

    this.proc.stdout.setEncoding("utf8");
    this.proc.stdout.on("data", (data) => this._handleData(data));

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[package]
name = "hello"
version = "0.1.0"
edition = "2024"

[dependencies]
anyhow = "1.0.100"
argon2 = "0.4"         # Argon2 実装（PHC 文字列サポート）
rand_core = "0.6"     # Salt 生成に OsRng を使うため
password-hash = { version = "0.5.0", features = ["getrandom"] }

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[package]
name = "rust_mcp_server_1"
version = "0.1.0"
edition = "2024"

[dependencies]
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"

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module example.com/go-mcp-server-2

go 1.24.4