I suspect the biggest catch for 1, is that you do it from an account where losing all of the money is an acceptable outcome. Clearly not the preferred outcome.

I suspect the biggest catch for 1, is that you do it from an account where losing all of the money is an acceptable outcome. Clearly not the preferred outcome. But will not destroy you financially. Which leads in to 2. The idea is that you are aiming for algorithms that take into account the API fees. If you didn't account for that in the price of business, than this is the same as not accounting for taxes in how you pay for things. That is, you did it wrong.