Skip to content
On this page

Litmus API Documentation


Access to our APIs is evaluated on a case-by-case basis. To find out if your use case is one that we support feel free to get in touch with the details of your project.


Litmus APIs enable you to integrate industry-leading tools into your own products and applications. We offer solutions for both Email Previews and Email Analytics, so you or your customers can preview their email designs, and learn more about their subscriber base through powerful metrics.

The Litmus Instant API is the easiest and fastest way to get super speedy email client screenshots into your service. In fact, it's what Litmus uses to power its email client previews within Builder. If you haven't checked that out already, we'd recommend giving it a try to see the API in action.

The Litmus Email Analytics API allows you to create new campaigns, generate HTML tracking code to insert into your outgoing emails, and the ability to access in-depth metrics detailing the 'when,' 'where,' and 'how' an email is opened.

The Legacy Previews API allows you to run email previews, spam tests, link-check tests, and perform code analysis.

REST Based

The latest version of all of our API's are REST based – this makes them easy to integrate no matter which technology you use! We have partners integrate with our APIs using C#, Visual Basic, PHP, Ruby, Python, Perl, and Java.


You can check the status of the API and other services via our status page:


Having trouble implementing one of our API's? Don't see an example of something you want to do? Not sure if we support your language or platform? Have any other questions or problems? Our support engineers are experts at navigating all kinds of API related issues. Contact us at