Update app.py

app.py

@@ -50,7 +50,7 @@ def convert_currency(amount: float, from_currency: str, to_currency: str) -> str
         from_currency: The source currency code (e.g., 'USD').
         to_currency: The target currency code (e.g., 'INR').
     """
-    api_key = "YOUR_EXCHANGERATE_API_KEY"  # Replace with a valid API key from ExchangeRate API
+    api_key = "90171124ae953d74d1515263"  # Replace with a valid API key from ExchangeRate API
     url = f"https://v6.exchangerate-api.com/v6/{api_key}/latest/{from_currency}"
     
     try: