BitcoinPay supports an API that can be integrated into most of today's e-commerce sites including websites and mobile apps. The sample code running on the emulator server supports php, java, python, Ruby, Perl and more. They even design their own emulator

However, here's the best part: If you don't know how to code, you can still integrate bitcoinpay pretty easily by downloading plugins for opencart, magento, prestashop, and woocommerce. Users only need to visit the developer's website to download the plugin they need.
-pho