🚀 Sequences CRUD API
Full CRUD support for sequences is now available on the V4 API. Five endpoints shipped:GET /v4/sequences— expanded to return the full sequence object (13 fields includingsend_days,time_zone,email_address,exclude_subscriber_sources)GET /v4/sequences/:id— fetch a single sequence by IDPOST /v4/sequences— create a sequence programmaticallyPUT /v4/sequences/:id— update sequence settingsDELETE /v4/sequences/:id— soft delete with background cleanup
🚀 Broadcast date filtering
GET /v4/broadcasts now supports sent_after and sent_before query parameters for server-side date filtering. Use both together to define a date range, or omit both to preserve existing unfiltered behaviour. Filters are applied before pagination, so page sizes and cursor behaviour remain consistent. Invalid date values return 422 with descriptive error messages.This enables incremental sync patterns — instead of fetching your full broadcast history and filtering client-side, call GET /v4/broadcasts?sent_after=2026-04-16 to retrieve only what’s changed since your last run.Full reference: developers.kit.com/api-reference/broadcasts/list-broadcasts🚀 Default values now supported across all plugin settings components
All plugin settings components now support an optionaldefault property that pre-fills the setting value when a creator first adds the component. Previously only available on Radio Group, Slider, Toggle, and Textarea, it is now also supported on:- Color Picker (string)
- Text Input (string)
- Numerical Input (number)
- Font Picker (object with
fontFamilyandfontWeight) - Select Input (string)
- Date Picker (string, UTC ISO8601)
default continue working unchanged.🔧 Going-live checklist prompt added to app submission
The Submit for Approval modal now displays a pre-submission checklist when you click “Submit for approval” in the Distribution tab, with a direct link to the going-live checklist. No changes to the submission API or review process.🚀 App Store Search
The Kit App Store now has free-text search. Creators can search by app name, category, or description with real-time debounced results and fuzzy/partial matching. The category filter has moved into a dropdown co-located with the search input. No API changes — this is an in-product UI feature available atapp.kit.com under Automate > Apps. See the App Store overview and app details page for context on the App Store surface.🚀 Kit Developer Docs MCP server
Connect your AI coding agent directly to Kit’s developer documentation using the Kit Developer Docs MCP server. Supported clients can query the full API reference on demand, make live API calls on your behalf, and spin up local OAuth servers for testing.🚀 Custom Field Webhooks & Bulk Updates
- Introduced 3 new webhook events for custom fields:
custom_field.field_created,custom_field.field_deleted, andcustom_field.field_value_updated, enabling real-time sync with third-party apps. - Added a bulk update endpoint (
POST /v4/bulk/custom_fields/subscribers) to update multiple custom field values for multiple subscribers in a single API call. - Learn more about webhooks and bulk updates.
🚀 Transparent color option now available in color picker
The color picker component now supports anallow_transparent property that displays a “Transparent” toggle, allowing creators to set colors to transparent.🚀 App Settings now live in Kit App Store
Developers can now set an external “App Settings” URL in their app settings, allowing Creators to be able to customize their app setup post-installation, reducing account bloat by controlling data creation and sync. Read about best practices of how to implement this here.🔧 Improved Kit App Store Sorting
- Default sorting now highlights the most popular apps by all-time installations.
- Introduced a “Trending” category for apps gaining traction across our creators.
- Renamed “Last added” to “Newest” for clarity.
🚀 New API endpoints: “List stats for a subscriber” and “Filter subscribers based on engagement”
Developers can now use Kit’s API to filter subscribers by events likeopened, clicked, sent, delivered, and subscribed with customizable date ranges and event counts. Explore the API to enhance subscriber engagement tracking. Additionally, the List stats endpoint now supports specifying date ranges for subscriber engagement data. Learn more.🚀 Automation nodes app plugin environment launched
Developers can now integrate third-party apps with Kit Visual Automations using action and event nodes. This opens up powerful new ways for developers to build with Kit, and for creators to automate their workflows.- Event nodes trigger automations on conditions like “call booked” or “survey completed”.
- Action nodes perform tasks in external systems such as “send an SMS” or “enroll a subscriber in a course”.
- Apps like Shopify, Thinkific, and Calendly are already utilizing these nodes.
🚀 Dynamic return URLs for app installations
Developers can now redirect users back to specific pages after completing an app install using thereturn_to query parameter in installation flows, enabling smoother integration experiences that originate from partner sites.📖 Developer changelog now live
- Emoji categories: 🚀 Added, 🔧 Changed, 🐛 Fixed, ⚠️ Breaking Changes
- RSS subscription: Never miss an update with the RSS feed button
- Smart filtering: Filter by product area including Kit App Store, Plugins, API, Authentication, and more
- Copy functionality: Easily share updates with the copy page feature
🚀 New subscriber stats endpoint available
Get comprehensive engagement metrics for individual subscribers including sends, opens, clicks, bounce rates, and timestamps via the new subscriber stats API endpoint.🚀 New plugin components and dependency support now available
- New plugin components: Radio Group, Slider, Textarea, Toggle, Numerical Input
- New plugin capabilities: Group, Dependencies
- Plugin enhancements: Transparency and weights in Font Picker, a11y improvements across all components
🔧 Kit App Store and app management UX improvements
- Entire app cards now clickable with streamlined navigation and consistent button hierarchy
- New install button directly on Build tab for faster app testing workflows
- In app settings (
https://app.kit.com/apps/:app_id/auth), API and Plugin Authentication separated into distinct sections with clearer plugin type display
🚀 App Versioning now available for seamless authentication updates
Developers can now ensure creators have access to their latest functionality through app versioning:- Apps automatically create new versions when authentication requirements change
- Creators receive smart notifications and can update permissions without reinstalling
- Plugin-level scope control with cumulative permission tracking across all plugins
🔧 OAuth flow now starts from api.kit.com
Kit’s OAuth flow is now initiated fromapi.kit.com/v4/oauth for consistency with other API endpoints, replacing the previous app.kit.com requirement.🚀 Direct app installation URLs now available
Developers can now drive app installations directly from their websites usinghttps://app.kit.com/apps/:app_id/install?k_app_id=k_:app_id without requiring users to first visit Kit App Store.🔧 App icons now display consistently across the Kit App Store
App thumbnails now display as uniform squares (60x60px on detail pages, 40x40px elsewhere) with proper cropping and centering, ensuring professional appearance regardless of original image dimensions.🚀 Plugin deletion now available for developers
Developers can now permanently delete plugins from their Kit apps to better manage their plugin inventory.🚀 Brand new developer documentation platform
We’ve completely rebuilt our developer documentation from the ground up, centralizing all developer resources in one comprehensive hub at developers.kit.com.Key improvements include:
- Unified resource center: All guides, tutorials, and API documentation now live in one carefully structured location
- Updated content: Every piece of documentation has been refreshed and expanded, from app creation guides to OAuth implementation tutorials
- Enhanced navigation: Improved site structure makes finding relevant information faster and more intuitive
🚀 New interactive features
API Sandbox
- Test Kit’s V4 API directly in the documentation
- Input your API key and make live requests without leaving the docs
- Perfect for rapid prototyping and testing
Advanced Search & AI Support
- Full-text search across all documentation
- Built-in “Ask AI” functionality for instant answers
- Industry-standard llms.txt and llms-full.txt support for AI integrations
🔧 Developer experience improvements
- Dark mode support: Documentation now adapts to your preferred viewing mode
- SEO optimized: Better discoverability for developers searching for Kit integration help
- Quick action CTAs: Streamlined paths to sign up, join the developer community, and contact support
- Mobile responsive: Optimized experience across all devices