> For the complete documentation index, see [llms.txt](https://docs.coupler.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coupler.io/sources/category/email/convertkit.md).

# 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

{% hint style="success" %}
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.
{% endhint %}

{% stepper %}
{% step %}
**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.
{% endstep %}

{% step %}
**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.
{% endstep %}

{% step %}
**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.
{% endstep %}

{% step %}
**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.
{% endstep %}

{% step %}
**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.
{% endstep %}
{% endstepper %}

## 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                      |


---

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