Postmark is an email delivery service for web apps. The Spamcheck API gives developers a programmatic interface to the spam filter tool SpamAssassin. The API can be used by an application to pre or post process email content. It helps to filter out junk and prevent clutter within a database or application. The API uses RESTful calls and responses are formatted in JSON.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.