Paypal

Digital payments platform enabling online money transfers and serving as an electronic alternative to traditional paper methods. Merchants can accept PayPal, Venmo, credit and debit cards, pay-later options, and local payment methods through a unified checkout experience.

One of the largest digital payment networks globally, with broad merchant and consumer adoption. Combines a consumer wallet ecosystem with merchant APIs, differentiating with Fastlane for faster guest checkout, Log in with PayPal for identity, and platform APIs for marketplaces and split payments. REST APIs, JavaScript SDK, server SDKs for Node, PHP, Python, Java, .NET, and Ruby, plus iOS and Android mobile SDKs.

Key capabilities:

• REST APIs for checkout, subscriptions, invoicing, payouts, and dispute management
• JavaScript SDK for payment buttons and card fields, server SDKs for backend integration
• Multiple payment methods: PayPal, Venmo, Pay Later, Apple Pay, Google Pay, cards, local methods
• Webhooks for payment, subscription, and dispute events
• Sandbox environment and VS Code extension for testing
• Marketplace and multiparty APIs for platforms and split payments

E-commerce teams integrate PayPal for one-click checkout and card processing across web and mobile. Use cases include subscription billing, invoicing, mass payouts to freelancers or sellers, donations, and in-person point-of-sale. Developers use the JavaScript SDK for frontend buttons, REST APIs for server-side flows, or no-code configuration. Log in with PayPal provides OAuth-style authentication without handling passwords.