HQ Rental Software is a complete fleet management software system, which incorporates real time availability, online reservation system and online payments.

How to get an API key

API access is available for Professional or Enterprise subscriptions. For more details, visit our pricing page.

If you already have a Professional or Enterprise subscription, you can enable API integration using an administrator account by following these steps:

1- Ensure you are signed in as an administrator user. Then, navigate to Settings > Car Rental > Integrations:

2- In the Other Integrations table, find the row labeled “Custom Integration”:

3- Click the “Enable” button. A modal will appear with a brief explanation of what the system will do after enabling the integration. Confirm the action by clicking “Enable” again:

4- Once you click Enable, the system will:

• Create a new user called “Custom Integration.”
• Send an email to your administrator email address with the following information:
  • The password for the “Custom Integration” user.
  • The encoded token for the “Custom Integration” user.
  • The base API URL.
  • A Postman collection with sample requests (you'll need to include the encoded token for authorization).