Mailbox API 2.0

Welcome to the second generation of our Mailbox API. This is an HTTPS-only API, with OAuth 2 authentication and CORS support running at:

It uses JSON for requests, responses and error messages. The responses typically include resource links which should help you explore the API and free you from composing URIs by hand.


While we won’t introduce any breaking changes, we plan on adding new features and new endpoints over time. Our changelog can be monitored to see when and how the API was updated.


Version 2.0 of our PHP SDK client has been updated to support Mailbox API 2.0.

In addition to this release, we’ve also released version 1.0 of the Laravel/Lumen adapter for the API client. If you’re using the v2 client within a Laravel/Lumen app, this adapter contains a handy service provider and facade to make things a little easier.

If you’d like to request support for any other clients, please let us know.