Connect Kit

Kit connects with a single API key. Untaggle registers the webhooks it needs by itself — you don't paste anything into Kit, and any webhooks you already have there are left untouched.

What you need

• Your V4 API Key — in Kit, Settings → Developer → API. Use the V4 API Key, not the legacy v3 secret.
• You must be an admin of your Untaggle account.

Steps

1. In Untaggle, open Connections and click + Connect platform, then pick Kit.
2. Paste the API key and click Test connection — you'll see a ✓ with your account's name.
3. Click Connect. That's it — webhooks are registered for you.

What this enables

• Actions: add or remove tags, add subscribers to sequences and forms, and unsubscribe — so a purchase or form submission on your selling platform lands in Kit correctly tagged.
• Unsubscribe sync: a Kit unsubscribe is picked up automatically and honored on your other platforms, and their opt-outs are honored in Kit — wired for you on connect. How unsubscribe sync works.