This documentation is for the SendGrid Web API v2

To access all the latest features and upcoming developments, please see our v3 API.

Reseller Haiku API Overview

The Reseller Haiku API is for companies with which SendGrid has formal reseller partnerships and use a Heroku style API. If you don't have a formal partnership with SendGrid, you will not have permission to use this API. Check the Customer Subuser API if you need sub-account functionality.

Following are brief descriptions of the various API calls needed to manage your customers. Click the API call name for further details:


To authenticate, add an Authorization header to your API request that contains a base64-encoded username:password string. For more about basic access authentication, see this Wikipedia article.

Example header:

Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ===


Create a customer.


Delete a customer.

Customer Package Upgrade/Downgrade

Change the package for a customer.

Single Sign On

Allow users to manage their account using our site