Use this SDK to send email with SendGrid's cloud-based email platform using Java. The SDK documentation contains extensive code samples for use and instructions on how to install the SDK via Maven or by Jar file.
We have seen an explosion in the number of APIs that are now available to developers. It seems like almost everyone has one and those that don't are scrambling to get one. The focus now is clearly not on just having an API, but having a "great API." Two excellent presentations from Cloudstock, held earlier this month, give you an overview on the current state of the API market and tips on what makes a great API.