Giftbit Payment API - Stripe for gift cards
📦 Charity Box - Make a financial commitment to charity 🕊 Donate or pay 💰
Raise - The easiest way to save money on the go
The Contently Foundation - Funding stories in the public interest.
Gemnote - Handwritten cards & premium custom gifts for companies
Nifflr - Use computer's processing power to earn money for charity