Build the app ecosystem for creators

Inside Kit
Updated: January 06, 2025
Build the app ecosystem for creators
7 min read

Kit is the email-first operating system for serious creators to run their business. And to help creators extend the power of Kit’s email marketing tools, we’ve launched our app store, where developers can build apps to power the creator economy.

Kit for developers

Want to get your app in front of thousands of creators? The $250 billion creator economy shows no signs of slowing down. Kit is home to 600,000+ creators who send 2.5 billion emails on average and earn $1.2 million in sales per month—this is the audience you can reach with your app to drive new growth and revenue.

Our self-serve app developer platform is now in open beta for everyone to access with our brand new V4 API. You’ll find a new Developer Settings tab under you account settings to get started with your app. If you can think it, you can build it.

With our app developer platform, you can create an app that…

  • Manage subscribers
  • Track purchases
  • Create, schedule, and target broadcast emails
  • Create plugins for the email editor with content blocks
  • Use bulk endpoints to create subscribers, tags, and custom fields
  • Test and iterate your app with API Keys
  • Automate your individual Kit account through our V4 API

And there’s much more to come. You can expect more access to email data, bulk endpoints, plugin environments for the dashboard and content library, paid app support with unified billing, and more as we continue to develop our developer ecosystem. Read more about the app store and start building today.

We want you to be excited to build apps on Kit and for our creators to be excited about your apps as well, so keep sharing your feedback and let us know what we should prioritize to make this the best ecosystem for creators.

Different types of apps you can build

Email editor plugins

No other platforms have apps that directly inject into its functionality. With Kit, you can build an app that plugs content from a third-party directly into our email editor. Once your app is installed, your app’s content will be directly available in the email content blocks for creators to add into their email.

Mighty Networks

Creators can install Mighty’s app to automatically sync and tag Mighty members into their Kit, and easily pull content pieces, like Events and Member Spotlights, from their Mighty Network course or community straight into their Kit newsletter and email sequences.

Senja

Already have designed image and video testimonials you’ve collected in Senja? Creators can install the Senja app and add them into their email. No need to go back and forth or do any additional formatting.

AI-driven

AI can be a great assistant for creators who create content everyday. Create an app that pulls in a creator’s content to train an AI model that helps them with future content creation—an email, video, or more.

Wordsmith

 

Creators have to juggle creating so many different types of content. Create an app like Wordsmith that takes their video content on YouTube to train an AI-model that helps them with the newsletter content that they also have to manage.

Lex

 

 

Emails are the core connection creators have with their audience. Lex is an AI writing app that helps creators write in their own voice based on past emails they’ve sent.

New functionality and interface

Take the information and data in Kit and create a new user interface that gives creators different functionality that they need in their business. Endless possibilities to organize subscribers, view data, and more.

Broadcast Boost

Data gives creators more insight into the next step they should take. Broadcast Boost built a different interface that shows a creator’s list of email and allows them to sort by email performance.

Kitboard

Build a separate Kanban view like Kitboard did for creators who need a CRM. Utilize Kit’s subscriber and tagging system for creators to look at what’s in their sales pipeline and quickly take action from their inbox.

Extend what creators can do on Kit

Our new app store represents an ecosystem for creators that goes beyond a simple integration. Apps do more than just sync subscribers from other tools to Kit. Apps also allow creators to work and use other tools directly inside Kit, so there’s no need to jump back and forth when they’re working on an email.

Just like the creator economy, our app store is built on a network of creators amplifying each other’s work and solving problems together. Our app store is open to developers across all niches of all shapes and sizes to build, test, and launch their own apps on Kit and reach thousands of creators.

Kit’s app store opens up a world of opportunities and functionality for creators to do their best work and for developers to build and expand their business—a win-win for the creator economy.

Start building an app on Kit today.

Frances Wong
Frances Wong

Frances Wong is the product marketing manager at Kit. She is customer-obsessed, which helps her build, launch, and grow innovative and impactful tools for creators. Outside of Kit, you’ll find her in Brooklyn with Daikon, her adorable Jindo mix. (Read more by Frances)