Recurpay - Recurpay is a subscription SaaS app for businesses that automates recurring billing.

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.

Stripe Billing Customer Portal - Stripe-hosted page for customers to manage subscriptions

TypingDNA Authenticator - 2FA codes in your browser, secured by the way you type

Stripe Billing - A set of tools for billing and subscriptions

WAGSI - WAGSI is a recurring payments platform for Metamask users built on Polygon.