[raphaelj]

Is there any use policy restriction on Stripe, Molly and/or Braintree that would prevent one to dynamically select one or another payment provider depending on the quoted fee for a given customer (card type, country, currency...)?

[wakatime]

Not sure, but I know other companies use multiple payment providers too usually for redundancy. We would use Stripe for everything, except Stripe doesn't have the ability to accept BTC or PayPal.

For the same reasons as rwieruch's comment above, some international customers prefer PayPal: https://news.ycombinator.com/item?id=22178646