Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
Spring Security - The Spring portfolio has many projects, including Spring Framework, Spring IO Platform, Spring Cloud, Spring Boot, Spring Data, Spring Security...
TypingDNA Authenticator - 2FA codes in your browser, secured by the way you type
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Stripe Billing - A set of tools for billing and subscriptions
JSON Web Token - JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.