The First Steps

Webhook + Init + auth + the API-key credential

📄️The Webhook Trigger & Init Node

Every Circus workflow starts with a Webhook node (POST) and an Init node — the entry point that sets up shared context.

Securing your webhook so only Circus can trigger it — the HS256 JWT, the shared secret, and how Init validates it.

Configuring the circusApi credential so your Circus nodes can authenticate their callbacks to the platform.