diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..93f1361
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+node_modules
+npm-debug.log
diff --git a/index.js b/index.js
index b09f68e..6978219 100644
--- a/index.js
+++ b/index.js
@@ -1,8 +1,19 @@
-import { startServer } from '@modelcontextprotocol/server';
-import { getTools } from './tools.js';
+import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
+import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
+import { z } from 'zod';
 
-startServer({
-  tools: await getTools(),
-  name: 'mi-mcp',
+const server = new McpServer({
+  name: 'mi-mcp-server',
   version: '1.0.0'
 });
+
+server.tool(
+  'saludar',
+  { nombre: z.string() },
+  async ({ nombre }) => ({
+    content: [{ type: 'text', text: `Hola, ${nombre}! 👋` }]
+  })
+);
+
+const transport = new StdioServerTransport();
+await server.connect(transport);
diff --git a/package.json b/package.json
index 94ef3d4..c271fb0 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,8 @@
     "version": "1.0.0",
     "type": "module",
     "dependencies": {
-      "@modelcontextprotocol/server": "^0.0.21"
+      "@modelcontextprotocol/sdk": "^1.11.0",
+      "zod": "^3.22.4"
     }
   }
   
\ No newline at end of file