GumHub - Sell access to your GitHub repos with Gumroad

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.

Gumroad Memberships - Earn your audience's ongoing support

Bonsai - One platform to streamline your entire business

Sup! Standup Bot - The complete stand-up and follow-up bot

Payzo - Accept credit cards with zero coding (for freelancers)