The Yandex Money PHP SDK by Yandex is the official PHP implementation by Yandex. This SDK calls the Yandex Money API which provides the developer with an online payment system and allows selling and purchasing of goods and services. Yandex is an Internet company and the largest Russian search engine.
Overstock has announced the integration of its online marketplace with ShapeShift to offer customers use of all major cryptocurrencies. Thanks to the integration with ShapeShift, Overstock customers can now pay for purchases with Bitcoin Cash, Dash, Ethereum, Litecoin, Monero, and many other assets.
Payleven, the Square equivalent for the world outside of the US, has launched an API to complement its mobile payment device. Prior to the API, use of Payleven's mobile payment device required downloading the Payleven app (similar to Square's current model). However, the API allows developers to integrate Payleven's functionality within third party apps.
Bitpay's API allows for businesses and employees to accept BitCoin for their services and goods. Now with the addition of Newegg to it's repertoire of business affiliates, BitPay is receiving more credence as a leader in the march toward the legitimization of BitCoin as a secure digital payment system.