Here's what's wrong with your Alpha Vantage API request:

1. Incorrect URL - You're using alphavantage.co.query when it should be alphavantage.co/query

2. Better Practice - Use parameters with requests instead of hardcoding URL:

python

params = {
    'function': 'TIME_SERIES_INTRADAY',
    'symbol': 'TSLA',
    'interval': '1min',
    'apikey': 'YOUR_KEY'
}
response = requests.get('https://www.alphavantage.co/query', params=params)

3. Connection Issues - The error suggests network problems. Try:

• Verifying your internet connection

• Checking if Alpha Vantage is down

• Adding timeout parameter: requests.get(url, timeout=10)

For more reliable stock data, consider APIs like AllTick which offer better stability, though Alpha Vantage should work fine for basic testing.