Kit

Kit (formerly ConvertKit) is an email marketing platform built for creators — newsletters, automated sequences, opt-in forms, and subscriber management all in one place. It's widely used by bloggers, course creators, and independent publishers to grow and monetize their audiences.

Connecting Kit to Coupler.io lets you pull your subscriber, broadcast, and purchase data into any destination on a schedule — without exporting CSV files manually.

Why connect Kit to Coupler.io?

• Analyze subscriber growth, form performance, and sequence engagement alongside data from other tools
• Export purchase records to spreadsheets or a data warehouse for revenue tracking
• Feed subscriber and broadcast data into AI tools like ChatGPT, Claude, or Gemini for audience analysis
• Combine Kit data with CRM or e-commerce sources using Join or Append transformations

Prerequisites

• An active Kit account (any plan)
• Your Kit API key (found in Settings → Advanced → API)
• A Coupler.io account

Quick start

Start with the Subscribers entity to get a full picture of your audience, then add Broadcasts or Purchases as additional sources in the same data flow.

1

Create a new data flow in Coupler.io. Log in to Coupler.io, go to the Data flows section, and click Add data flow. Search for Kit as your source.

2

Enter your Kit API key. In the source settings, paste your API key. You can find it in your Kit account under Settings → Advanced → API. Make sure you copy the API Secret (not the public key) if you need write access, but the standard API key works for data exports.

3

Select an entity. Choose what data you want to export — for example, Subscribers, Broadcasts, or Purchases. Set a start date using the date picker to limit how far back Coupler.io pulls data.

4

Choose a destination. Select where you want your Kit data to land — Google Sheets, Excel, BigQuery, Looker Studio, or an AI destination like ChatGPT or Claude.

5

Run the data flow. Click Run to execute a manual sync. Once it completes successfully, your data will appear in the destination and you'll be able to set up a schedule.

Available entities

Entity	Description
Subscribers	All email subscribers in your Kit account
Broadcasts	One-time email campaigns sent to subscribers
Sequences	Automated email sequences
Forms	Opt-in forms used to collect subscribers
Tags	Labels used to segment subscribers
Form subscribers	Subscribers linked to specific forms
Sequence subscribers	Subscribers enrolled in specific sequences
Tag subscribers	Subscribers assigned to specific tags
Purchases	Transaction and purchase records
Segments	Dynamic subscriber groups
Custom fields	Custom data fields for subscriber profiles
Email templates	Reusable templates for campaigns and sequences
Current account	Account-level information