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When you're ready for complex GMass integrations, you're ready for the GMass API.

  • You want to incorporate GMass into your web app.
  • You want to use GMass with your internal tools, like your CRM.
  • You want to set up automations where GMass works with other apps and software you're using.
  • And any integration beyond those as well.
Here in the API archives, you can see the articles we've written on how you can take advantage of the GMass API: About the API itself, about webhooks, and about the GMass-Zapier integration.

And check out our features page on the GMass API for even more about what you can do when you connect GMass to your other apps and tools.

May 9, 2024

How to Use the GMass OAuth Webhook API Feature

Does your third-party app send email for users through GMass? This method enables you to pass key info from GMass back to your app.

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November 22, 2022

How to Trigger a Transactional Email to New Rows in a Google Sheet

A Google Apps Script to send an instant, automated transactional email through GMass to the address in any new row you add to a Google Sheet.

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August 24, 2021

Guide to using the Zapier integration

You can now use the Zapier integration for GMass. Technically it’s still in beta and hasn’t been officially approved by …

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August 19, 2021

Guide to using webhooks

GMass now supports webhooks for the following types of events: Sends Opens Clicks Replies Unsubscribes Bounces What’s a webhook? There’s …

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March 23, 2021

How to use the GMass API

We’ve launched a beta version of the GMass API that can handle basic GMass functionality around creating lists and sending …

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