Stripe
Overview
A service that lets businesses accept online payments and manage subscriptions and payouts through a set of developer tools.
General use
Companies use it to charge customers by card, run recurring billing, send invoices, and handle taxes and fraud checks.
Insight
The cleanest payment tools for developers, with clear docs, so it is usually the fastest way to start charging customers. Fees sit on the higher side and are not very negotiable until you are large. Payout timing and dispute handling can be slower and more rigid than you would like. Best when speed of setup matters more than squeezing the lowest fee.