Salesforce Payment Integration

We already have an integration with Authorize.net, which accepts the following
1) Credit card information/Bank information for eChecks
2) Customer information

and process the payment.

I want to do the integration of the following payment service providers with Salesforce.

1) Stripe
2) PayPal
3) Square
4) BrainTree


The idea is, same payment info should be used for different payment service providers integrations to make a payment.