# List Invoicing Customers

Returns a list of all invoicing customers.

Endpoint: GET /billing/customers
Version: 1.0.0
Security: apiKeyAuth

## Header parameters:

  - `x-entity-id` (string)
    Optional entity ID for scoped access to entity-specific data

## Response 200 fields (application/json):

  - `id` (string, required)

  - `nickname` (string, required)

  - `email` (any)

  - `address` (any)

  - `created_time` (string, required)

  - `updated_time` (any)