The Bitrefill API allows developers to programmatically send money to prepaid phones around the world to purchase additional minutes. Payments through the API are made in Bitcoins. This API currently has support for over 600 operators in 143 different countries. Withdrawing funds is instant and topup usually occurs within 10 minutes.
We've added six APIs to the ProgrammableWeb directory in categories such as Bitcoin, SEO, Testing, and Backend. Also new to the directory are SDKs for Feedzai fraud prevention, YesGraph (for mobile app referrals), and Customer.io email platforms. Here's a summary of what is new.