This documentation is for the SendGrid Web API v2

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

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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

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