+30 231 111 8910Integrations / API & website connection
INTEGRATION 01
Connect your website and any system to Rentalbook
Use the RentalBook REST API to connect your website and other applications, exchanging booking, vehicle and availability data.
- REST API
- Real-time booking
- Secure connection
DATA FLOW
Website
Booking form
REST API
Secure connection
Rentalbook
Rental planner
Plus third-party systems, through the same API
- ERP
- CRM
- GPS
- Banks
- POS
- Applications
CONNECTIVITY
One API, many systems
Connect RentalBook to your business’s applications and systems, creating a single environment for exchanging data.
Website
Booking form
Accounting / ERP
Tax documents, customers
CRM
Contacts and quotes
Applications
Your own or third-party
REST API
for third-party systems and applications
- Bookings
- Vehicles
- Customers
- Availability
- Tax documents
GPS & telematics
Locations and data
Banks & POS
Payments
Email & SMS
Notifications
Booking portals
External channels
FOR DEVELOPERS
A cleanly structured REST API
Read and send bookings, vehicles and customers from your own system.
- Bookings, vehicles, customers and availability
- Secure access for every connection
- Works with any language and platform
ILLUSTRATIVE EXAMPLE
GET /availability?from=2026-10-01&to=2026-10-05
Authorization: Bearer <API_KEY>
200 OK
{
"vehicles": [
{ "id": 128, "category": "SUV", "available": true }
]
}SECURITY
Secure from the ground up
Every connection works with your own access rules.
Secure connection
Communication with the API uses secure access.
User roles
Different permissions for each person on your team.
Separate database
Your own subdomain and your own database for each company.
FAQ
Frequently asked questions
The most common questions about the API and the website connection.
Can I connect Rentalbook to my existing website?
Can I connect Rentalbook to my existing website? Yes. Your site’s booking form connects to Rentalbook via the API.
What is the Rentalbook REST API?
What is the Rentalbook REST API? An API for third-party systems and applications: you read and send bookings, vehicles and customers.
Does it connect to the accounting software, ERP or CRM I already use?
Does it connect to the accounting software, ERP or CRM I already use? Yes. With the REST API it connects to whatever else you use.
Is the connection secure?
Is the connection secure? Yes. Each company has a separate database and role-based permissions.
Didn’t find the answer?
Talk to our support team or see Rentalbook in action, with a demo for your own company.
See Rentalbook in your own business
See how it works: from the quote and digital signature to tax documents and reports. The demo is tailored to the way your company works.
