Fix OpenAPI endpoint to properly serve openapi.json file

app.py

@@ -196,6 +196,11 @@ def get_capabilities():
                 "path": "/capabilities",
                 "method": "GET",
                 "description": "MCP capabilities endpoint"
+            },
+            {
+                "path": "/openapi.json",
+                "method": "GET",
+                "description": "OpenAPI specification"
             }
         ],
         "features": [
@@ -207,6 +212,18 @@ def get_capabilities():
         ]
     })
 
+@app.route('/openapi.json', methods=['GET'])
+def get_openapi():
+    """Serve the OpenAPI specification file"""
+    try:
+        # Read the openapi.json file from the filesystem
+        with open('openapi.json', 'r') as f:
+            import json
+            spec = json.load(f)
+        return jsonify(spec)
+    except Exception as e:
+        return jsonify({"error": "OpenAPI specification not found"}), 404
+
 if __name__ == '__main__':
     # Fix the port issue by using a different port
     app.run(host='0.0.0.0', port=4096, debug=True)