No, I don’t work for Alpaca. I was just trying to help you since you seemed upset and I was also confused about the free market data initially myself. My comments above are based on information that I’ve found in the Alpaca Documentation and on this forum.
Have a look at the Stock Pricing API and Subscription Plans documentation, which explains the difference between the free and paid data subscriptions.
Bear in mind that, if Alpaca provided full market data for free while you develop your model, you would have no reason to purchase a paid subscription when eventually apply your model to your Live Account. The free data is just for testing your system and confirming that it works programmatically.