diff --git a/test_ultra_direct.py b/test_ultra_direct.py
new file mode 100644
index 0000000..f509475
--- /dev/null
+++ b/test_ultra_direct.py
@@ -0,0 +1,97 @@
+"""Direct test for ultra simple server - completely self-contained."""
+
+import sys
+import os
+
+print("=" * 50)
+print("Ultra-Simple Dolibarr MCP Server Test")
+print("=" * 50)
+print(f"Python version: {sys.version}")
+print("")
+
+# Test 1: Standard library
+print("✅ Testing standard library imports:")
+try:
+    import json
+    import logging
+    import os
+    import sys
+    from typing import Dict, List, Optional, Any
+    print("   json, logging, os, sys, typing - OK")
+except ImportError as e:
+    print(f"   ❌ Standard library import failed: {e}")
+    sys.exit(1)
+
+# Test 2: Requests library
+print("✅ Testing requests library:")
+try:
+    import requests
+    print(f"   requests {requests.__version__} - OK")
+except ImportError as e:
+    print(f"   ❌ requests import failed: {e}")
+    print("   Please run: setup_ultra.bat")
+    sys.exit(1)
+
+# Test 3: Direct import of ultra server
+print("✅ Testing ultra server import:")
+try:
+    # Direct import without going through package
+    sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'src', 'dolibarr_mcp'))
+    import ultra_simple_server
+    print("   ultra_simple_server module - OK")
+except ImportError as e:
+    print(f"   ❌ ultra_simple_server import failed: {e}")
+    sys.exit(1)
+
+# Test 4: Server instantiation
+print("✅ Testing server creation:")
+try:
+    server = ultra_simple_server.UltraSimpleServer("test-ultra")
+    tools = server.get_available_tools()
+    print(f"   Server created - OK")
+    print(f"   Available tools: {len(tools)}")
+    print(f"   Sample tools: {', '.join(tools[:5])}")
+except Exception as e:
+    print(f"   ❌ Server creation failed: {e}")
+    sys.exit(1)
+
+# Test 5: Configuration loading
+print("✅ Testing configuration:")
+try:
+    config = ultra_simple_server.UltraSimpleConfig()
+    print(f"   Configuration loaded - OK")
+    print(f"   URL: {config.dolibarr_url}")
+    print(f"   API Key: {'*' * min(len(config.api_key), 10)}...")
+except Exception as e:
+    print(f"   ⚠️  Configuration error: {e}")
+
+# Test 6: Tool call structure
+print("✅ Testing tool call structure:")
+try:
+    result = server.handle_tool_call("test_connection", {})
+    if "error" in result:
+        print("   Tool call structure - OK (API error expected)")
+        print(f"   Error type: {result.get('type', 'unknown')}")
+    else:
+        print("   Tool call structure - OK")
+    print(f"   Response format: {type(result).__name__}")
+except Exception as e:
+    print(f"   ❌ Tool call failed: {e}")
+    sys.exit(1)
+
+print("")
+print("=" * 50)
+print("🎉 ALL TESTS PASSED!")
+print("=" * 50)
+print("")
+print("✅ Ultra-simple server is ready")
+print("✅ Zero compiled extensions")
+print("✅ Complete self-contained implementation")
+print("")
+print("🚀 To run the server:")
+print("   .\\run_ultra.bat")
+print("")
+print("🧪 To run directly:")
+print("   python src\\dolibarr_mcp\\ultra_simple_server.py")
+print("")
+print("Test completed successfully!")