Bitcoin API with mixing service I'm looking for an API that can hide where my received money goes, for privacy reasons. I don't want my customers to be able to see how much money I've received.

Blockchain used to have a mixing service with their receiving API, so that no one could see where the bitcoin was forwarded to, but they discontinued it. Are there any API's out there that have a mixing feature like this? If not, what can I do to ensure privacy?

Thank you.
Check out Bitmixer.io, it even has an API.

You could do that, but personally, I think it's a much better idea to generate a new wallet per customer transaction. That way, all your coins aren't grouped together, so the customers won't know how much you make. Just how much they paid. Personally, my app creates addresses through the Coinbase API, all of which are held in a specific account named after my app.