Secure the webhook

You can use the x-retell-signature header together with your Retell API Key to verify the webhook. We have provided verify function in our SDKs to help you with this.

You can also check and allowlist Retell IP addresses: 100.20.5.228.

The following code snippets demonstrate how to verify and handle the webhook in Node.js and Python.

​

Install the SDK

Install the cooresponding Python or Node.js SDK:

• Node.js
• Python

​

Sample Code