Kobo Audiobooks - Experience the joy of being told a story

Google Payment API - Enable an easy-to-use checkout experience for customers

Audio Playr - Audio playback, playlists and export simplified

Giftbit Payment API - Stripe for gift cards

Syncr - Build a podcast out of Youtube videos 🎙

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.