w

main.ts

@@ -1,6 +1,6 @@
-import { McpServer } from "@modelcontextprotocol/server";
+import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
-import { serveStdio } from "@modelcontextprotocol/server/stdio";
+import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
-import { NodeStreamableHTTPServerTransport } from "@modelcontextprotocol/node";
+import { SSEServerTransport } from "@modelcontextprotocol/sdk/server/sse.js";
 import { Command } from "commander";
 import http from "node:http";
 import crypto from "node:crypto";
@@ -32,22 +32,14 @@ function buildServer(): McpServer {
   return server;
 }
 
-async function main() {
+async function runStdio() {
-  const transportType: string = options.transport;
-
-  if (transportType === "stdio") {
-    serveStdio(buildServer);
-    return;
-  }
-
-  if (transportType === "sse") {
   const server = buildServer();
+  const transport = new StdioServerTransport();
+  await server.connect(transport);
+}
 
-    const mcpTransport = new NodeStreamableHTTPServerTransport({
+async function runSSE() {
-      sessionIdGenerator: () => crypto.randomUUID(),
+  const transports = new Map<string, SSEServerTransport>();
-    });
-
-    await server.connect(mcpTransport);
 
   const httpServer = http.createServer(async (req, res) => {
     if (options.tokenHash) {
@@ -71,7 +63,37 @@ async function main() {
       return;
     }
 
-      await mcpTransport.handleRequest(req, res);
+    const url = new URL(req.url || "/", `http://${req.headers.host}`);
+
+    if (req.method === "GET") {
+      const sessionId = crypto.randomUUID();
+      const transport = new SSEServerTransport("/message", res);
+      transports.set(sessionId, transport);
+
+      res.on("close", () => {
+        transports.delete(sessionId);
+      });
+
+      const server = buildServer();
+      await server.connect(transport);
+      return;
+    }
+
+    if (req.method === "POST" && url.pathname === "/message") {
+      const sessionId = url.searchParams.get("sessionId") || "";
+      const transport = transports.get(sessionId);
+      if (!transport) {
+        res.writeHead(404, { "Content-Type": "text/plain" });
+        res.end("Session not found");
+        return;
+      }
+
+      await transport.handlePostMessage(req, res);
+      return;
+    }
+
+    res.writeHead(404);
+    res.end("Not found");
   });
 
   const port = Number(options.port);
@@ -80,11 +102,22 @@ async function main() {
   console.error(
     `Exchange MCP Server running via SSE on http://${options.host}:${port}`,
   );
-    return;
+}
-  }
 
-  console.error(`Unsupported transport: ${transportType}. Use "stdio" or "sse".`);
+async function main() {
+  const transportType: string = options.transport;
+
+  switch (transportType) {
+    case "stdio":
+      await runStdio();
+      break;
+    case "sse":
+      await runSSE();
+      break;
+    default:
+      console.error(`Unsupported transport: "${transportType}". Use "stdio" or "sse".`);
       process.exit(1);
+  }
 }
 
 main().catch((error) => {

package.json

@@ -7,8 +7,7 @@
     "format": "dprint fmt"
   },
   "dependencies": {
-    "@modelcontextprotocol/node": "^2.0.0-beta.2",
+    "@modelcontextprotocol/sdk": "^1.29.0",
-    "@modelcontextprotocol/server": "^2.0.0-beta.2",
     "commander": "^15.0.0",
     "fast-xml-parser": "^5.2.0",
     "httpntlm": "^1.8.13",

tools/auth.ts

@@ -1,6 +1,6 @@
 import { z } from "zod/v4";
 import { EwsClient, loadConfig, saveConfig, clearConfig } from "../ews_client.ts";
-import { type McpServer } from "@modelcontextprotocol/server";
+import { type McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 
 export function registerAuthTools(server: McpServer): void {
   server.registerTool(

tools/email.ts

@@ -1,6 +1,6 @@
 import { z } from "zod/v4";
 import { EwsClient, loadConfig } from "../ews_client.ts";
-import { type McpServer } from "@modelcontextprotocol/server";
+import { type McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 
 function getClient(): EwsClient {
   return new EwsClient(loadConfig());

tools/folders.ts

@@ -1,6 +1,6 @@
 import { z } from "zod/v4";
 import { EwsClient, loadConfig } from "../ews_client.ts";
-import { type McpServer } from "@modelcontextprotocol/server";
+import { type McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 
 export function registerFolderTools(server: McpServer): void {
   server.registerTool(