1

Create an integration

In Nango (free signup), go to Integrations -> Configure New Integration -> HighLevel White Label.
2

Authorize HighLevel White Label

Go to Connections -> Add Test Connection -> Authorize, then log in to HighLevel. Later, you’ll let your users do the same directly from your app.
3

Call the HighLevel API

Let’s make your first request to the HighLevel API (fetch a list of contacts). Replace the placeholders below with your secret key, integration ID, and connection ID:
curl -X POST "https://api.nango.dev/proxy/contacts/search" \
 -H "Authorization: Bearer <NANGO-SECRET-KEY>" \
 -H "Provider-Config-Key: <INTEGRATION-ID>" \
 -H "Connection-Id: <CONNECTION-ID>" \
 -H "Version: 2021-07-28" \
 -H "Content-Type: application/json" \
Or fetch credentials dynamically via the Node SDK or API.
✅ You’re connected! Check the Logs tab in Nango to inspect requests.
Next step: Embed the auth flow in your app to let your users connect their HighLevel accounts.
Questions? Join us in the Slack community.