Litmus

The advanced testing tool
for web professionals.

API

Integrate our industry-leading testing services into your own products and applications.

Reseller API Customer API

White label our testing services and resell them to your own customers.

From $499/month

Build applications that use your existing Litmus account.

From $49/month

Direct API connection to our testing grid Control your Litmus account via the API
Licensed for resale Not licensed for resale
Test results delivered inside your application Test results delivered to your Litmus account
Unmetered usage Fair usage policy applies
High-availability, backed by SLA Requires only a standard Litmus subscription
Telephone and priority email support Standard email support
Deep technical and code support No code-level assistance

Reseller API examples

Campaign Monitor integrated our reseller API to offer their customers a testing facility right inside their email marketing application.

Screenshot of Campaign Montior interface

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Suremail integrated our reseller API to create their own email testing product for the Dutch language market.

Screenshot of Suremail interface

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Customer API examples

LUON built an internal Windows application using our customer API. It makes it easier for their designers to create Litmus tests.

Screenshot of LUON's application interface

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Alkaline is a Mac desktop client for Litmus, built by Shiny Development using the customer API.

Screenshot of Alkaline's application interface

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Ready to become a reseller?

Contact James Halliday to find out more about how we can help you add email testing features to your own products.

Telephone: +44 (0)113 880 0380
Email: james@litmusapp.com

Want to use our customer API?

All you'll need is a subscription to Litmus to get started with our customer API. If you haven't already, sign up for one of our affordable price plans.

Reseller API documentation

You can review our technical documentation online. We also have a collection of API wrappers and code samples available on request. Please note that the reseller API is not the same as the customer API.

Customer API documentation

You'll find our customer API documentation online. Before you begin working with it you should review our getting started guide.