Update app/services.py

app/services.py

@@ -68,11 +68,11 @@ async def test_api_key(api_key: str) -> dict:
             "X-Title": "ContextIQ-Test"
         }
         
-        # Minimal test payload
+        # Minimal test payload - use higher max_tokens to ensure valid response
         payload = {
             "model": settings.MODEL_NAME,
-            "messages": [{"role": "user", "content": "Hi"}],
-            "max_tokens": 1,
+            "messages": [{"role": "user", "content": "Test"}],
+            "max_tokens": 10,
             "temperature": 0
         }
         
@@ -90,6 +90,17 @@ async def test_api_key(api_key: str) -> dict:
             
             if response.status_code == 200:
                 try:
+                    # Check if response has content
+                    response_text = response.text
+                    if not response_text or response_text.strip() == "":
+                        logger.error("❌ Empty response from OpenRouter API")
+                        return {
+                            "valid": False,
+                            "message": "Empty response from OpenRouter API. Please try again.",
+                            "model_info": None
+                        }
+                    
+                    logger.info(f"📄 Response content preview: {response_text[:200]}...")
                     response_data = response.json()
                     
                     # Check for successful response structure
@@ -136,9 +147,10 @@ async def test_api_key(api_key: str) -> dict:
                     
                 except Exception as json_error:
                     logger.error(f"❌ Failed to parse JSON response: {json_error}")
+                    logger.error(f"📄 Raw response content: {response.text}")
                     return {
                         "valid": False,
-                        "message": "Invalid response format from OpenRouter",
+                        "message": "Invalid response format from OpenRouter. Please try again.",
                         "model_info": None
                     }