diff --git a/.gitea/workflows/api-endpoint-tests.yml b/.gitea/workflows/api-endpoint-tests.yml
index a45aa91d..0214316e 100644
--- a/.gitea/workflows/api-endpoint-tests.yml
+++ b/.gitea/workflows/api-endpoint-tests.yml
@@ -414,60 +414,58 @@ jobs:
           echo "⚡ Testing API performance..."
           
           # Create performance test
-          cat > test_api_performance.py << 'EOF'
-import requests
-import time
-import statistics
-
-def measure_response_time(url, timeout=5):
-    try:
-        start_time = time.time()
-        response = requests.get(url, timeout=timeout)
-        end_time = time.time()
-        return end_time - start_time, response.status_code
-    except Exception as e:
-        return None, str(e)
-
-def test_api_performance():
-    apis = [
-        ("Coordinator API", "http://localhost:8000/"),
-        ("Exchange API", "http://localhost:8001/"),
-        ("Wallet API", "http://localhost:8002/"),
-        ("Blockchain RPC", "http://localhost:8545")
-    ]
-    
-    for name, url in apis:
-        print(f"\n📊 Testing {name} performance...")
-        
-        times = []
-        success_count = 0
-        
-        for i in range(10):
-            response_time, status = measure_response_time(url)
-            if response_time is not None:
-                times.append(response_time)
-                if status == 200:
-                    success_count += 1
-                print(f"  Request {i+1}: {response_time:.3f}s (status: {status})")
-            else:
-                print(f"  Request {i+1}: Failed ({status})")
-        
-        if times:
-            avg_time = statistics.mean(times)
-            min_time = min(times)
-            max_time = max(times)
-            
-            print(f"  📈 Average: {avg_time:.3f}s")
-            print(f"  📉 Min: {min_time:.3f}s")
-            print(f"  📈 Max: {max_time:.3f}s")
-            print(f"  ✅ Success rate: {success_count}/10")
-        else:
-            print(f"  ❌ All requests failed")
-
-if __name__ == "__main__":
-    print("⚡ Testing API performance...")
-    test_api_performance()
-EOF
+          echo 'import requests' > test_api_performance.py
+          echo 'import time' >> test_api_performance.py
+          echo 'import statistics' >> test_api_performance.py
+          echo '' >> test_api_performance.py
+          echo 'def measure_response_time(url, timeout=5):' >> test_api_performance.py
+          echo '    try:' >> test_api_performance.py
+          echo '        start_time = time.time()' >> test_api_performance.py
+          echo '        response = requests.get(url, timeout=timeout)' >> test_api_performance.py
+          echo '        end_time = time.time()' >> test_api_performance.py
+          echo '        return end_time - start_time, response.status_code' >> test_api_performance.py
+          echo '    except Exception as e:' >> test_api_performance.py
+          echo '        return None, str(e)' >> test_api_performance.py
+          echo '' >> test_api_performance.py
+          echo 'def test_api_performance():' >> test_api_performance.py
+          echo '    apis = [' >> test_api_performance.py
+          echo '        ("Coordinator API", "http://localhost:8000/"),' >> test_api_performance.py
+          echo '        ("Exchange API", "http://localhost:8001/"),' >> test_api_performance.py
+          echo '        ("Wallet API", "http://localhost:8002/"),' >> test_api_performance.py
+          echo '        ("Blockchain RPC", "http://localhost:8545")' >> test_api_performance.py
+          echo '    ]' >> test_api_performance.py
+          echo '    ' >> test_api_performance.py
+          echo '    for api_name, api_url in apis:' >> test_api_performance.py
+          echo '        print(f"🧪 Testing {api_name} performance...")' >> test_api_performance.py
+          echo '        ' >> test_api_performance.py
+          echo '        times = []' >> test_api_performance.py
+          echo '        success_count = 0' >> test_api_performance.py
+          echo '        ' >> test_api_performance.py
+          echo '        for i in range(10):' >> test_api_performance.py
+          echo '            response_time, status = measure_response_time(api_url)' >> test_api_performance.py
+          echo '            if response_time is not None:' >> test_api_performance.py
+          echo '                times.append(response_time)' >> test_api_performance.py
+          echo '                if status == 200:' >> test_api_performance.py
+          echo '                    success_count += 1' >> test_api_performance.py
+          echo '                print(f"  Request {i+1}: {response_time:.3f}s (status: {status})")' >> test_api_performance.py
+          echo '            else:' >> test_api_performance.py
+          echo '                print(f"  Request {i+1}: Failed ({status})")' >> test_api_performance.py
+          echo '        ' >> test_api_performance.py
+          echo '        if times:' >> test_api_performance.py
+          echo '            avg_time = statistics.mean(times)' >> test_api_performance.py
+          echo '            min_time = min(times)' >> test_api_performance.py
+          echo '            max_time = max(times)' >> test_api_performance.py
+          echo '            ' >> test_api_performance.py
+          echo '            print(f"  📈 Average: {avg_time:.3f}s")' >> test_api_performance.py
+          echo '            print(f"  📉 Min: {min_time:.3f}s")' >> test_api_performance.py
+          echo '            print(f"  📈 Max: {max_time:.3f}s")' >> test_api_performance.py
+          echo '            print(f"  ✅ Success rate: {success_count}/10")' >> test_api_performance.py
+          echo '        else:' >> test_api_performance.py
+          echo '            print(f"  ❌ All requests failed")' >> test_api_performance.py
+          echo '' >> test_api_performance.py
+          echo 'if __name__ == "__main__":' >> test_api_performance.py
+          echo '    print("⚡ Testing API performance...")' >> test_api_performance.py
+          echo '    test_api_performance()' >> test_api_performance.py
           
           python test_api_performance.py