To select the best API available in the market I would suggest you go for MsgClub SMS platform where they have their API available in many programming languages like PHP, Java, Python and more. You can send an SMS with premium high priority Bulk SMS Gateway. It leads to high-speed SMS and helps you to create a great touch with your clients. We provide BULK SMS API for integration of our BULK SMS Solution with your website. You can use our secure HTTP API to integrate with your Website/ Application to send SMS to your customers. To know more info. visit http://www.msgclub.net/sms-api/java-api.aspx