Getting Started


If you're looking for the legacy API (V3) docs click here.

Our verification API allows you to create Custom Integrations to add email verification to any part of your software. We offer solutions for verifying individual emails as well as lists containing thousands or even millions of emails.

First Steps

Starting with Version 4 of our API, accounts can now have multiple unique API keys. These API keys are attached to Custom Integrations, allowing advanced reporting and advanced settings.

To get started, log into your account and create a new Custom Integration App. After creation, you'll be taken to the newly created app's overview page, where you'll find your app's API key. This key will be used to authenticate your requests to our API.

Not a developer?

Working with Custom Integrations will require some development initially. If you're not a developer or are unable to hire a developer, you may want to try our Javascript Widget.


If you have questions about the API please email [email protected].