Flattr is a Sweden-based microdonation provider.

Stripe is a suite of APIs that powers commerce for businesses of all sizes.

Braintree is an all-in-one solution to accept, process, and split payments in your mobile app or online.

Dogecoin is a cryptocurrency featuring a likeness of the Shiba Inu dog from the "Doge" Internet meme as its logo.

Patreon is an Internet-based membership platform that provides business tools for creators to run a subscription content service.