Connecting Stripe, PayPal, and Square

Multi-provider strategies are becoming the norm. Whether for redundancy, lower fees, or regional coverage, businesses are using multiple gateways. Here is how to connect them effectively.

The API Approach

Most modern providers offer robust APIs. The key is to build or buy an abstraction layer that handles the differences between them.

Standardization

Stripe calls it a "Charge".
PayPal calls it a "Transaction".
Square calls it a "Payment".

Your system needs to map these to a common "Order" or "Transaction" model to make sense of the data.