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Overview

To authenticate with Kit, you need:
  1. API Key — a V4 API key from your Kit account settings.
This guide will show you how to create one.

Prerequisites

  • A Kit account. If you don’t have one, sign up.

Step 1: Create a V4 API key

  1. Sign in to Kit and open Settings > Developer (direct link).
  2. Under API keys > V4 Keys, click Add a new key. Use a V4 key, not the legacy V3 Key shown on the same page.
Kit Developer settings with the Add a new key button under V4 Keys
  1. Enter a name in Name (Internal use only), then click Create API Key.
Kit New API Key dialog with the name field and the Create API Key button
  1. Click Copy to copy the key, then click Done. You can’t view the key again after you close this window.
Kit dialog confirming the API key was created, with the Copy button

Step 2: Enter your API key in the Connect UI

  1. Open the form where you need to authenticate with Kit.
  2. Enter your V4 API key in the API Key field.
  3. Submit the form, and you should be successfully authenticated.
Kit Connect UI form with the API Key field You are now connected to Kit.