You don't need no stinking API keys to work with Amazon. All you have to do is enter any Amazon product URL into Lasso and it'll automatically grab the title, image, and URL with your primary tracking ID.
In fact, all you need to enter in the Lasso Amazon Settings is your Primary Tracking ID for this to work.
The only thing the API is good for is grabbing and updating Amazon pricing every 24 hours. So if you don't have enough API credits or don't wanna show pricing, then you'll never need to enter your API keys and it'll just work like magic.