> ## Documentation Index
> Fetch the complete documentation index at: https://docs.worthai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Step 1 - Customer Sign In

Call the [Customer Sign In](https://docs.worthai.com/api-reference/auth/sign-in/customer-sign-in) endpoint.

Capture the following credentials needed to make the Add Business call:

* `id_token` *(string)*: The ID token for the authenticated session.
* `customer_details` *(object)*:
  * `id` *(string)*: The unique identifier of the customer.