Kit plugins integrate seamlessly with our creators’ workflows, giving them instant access to third-party content and creative assets directly from within the Kit UI.

Unlike basic integrations creators have to manually stitch together, plugins become part of their Kit experience—transforming their email platform into a personalized hub that streamlines their creative business, powered by the apps and plugins you create.

Unlike API based apps, plugins that connect to third-party tools authenticate the other way around, with Kit needing to authenticate against your third-party service to be able to pull the data required to be rendered within Kit. More details on setting up authentication can be found in our plugin OAuth guide.

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Plugin types

We currently offer 2 plugin types:

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Content blocks

Content blocks let you create dynamic HTML elements for creators to directly insert into your emails. Help creators promote their upcoming events, sell their latest product, or showcase their latest podcast episode—all without leaving the Kit editor. These blocks make creators’ emails more engaging while saving them valuable creative time from going back-and-forth between tools.

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Media sources

Media sources let creators connect to and filter external media galleries right from the Kit media gallery—bringing their content to where they need it, when they need it. This offers simple filtration and search functionality, helping you get creators to the content they want, as quickly as possible.