Guide · Broker connections

How to connect to car rental brokers with the Carhire Manager Web API

Broker channels fill the seats your own website cannot reach — but only once availability syncs automatically. This guide covers which brokers to approach, how to get a supplier agreement, and how the technical connection runs over Carhire Manager Web's OpenTravel-standard SOAP and REST API.

Step 1: Choose your brokers and make contact

Every broker relationship starts the same way: you approach the platform and sign your own supplier agreement with it. The commercial terms — commission, payment flow, cancellation policy — are negotiated between your company and the broker. No software vendor can do this part for you, and you should be suspicious of any that claims otherwise.

The well-known channels Carhire Manager Web connects to, and what each is good for:

  • Booking.com — one of the world's largest travel platforms; enormous reach with travellers already planning a trip.
  • Rentalcars.com — a marketplace dedicated to car rental (part of Booking Holdings); everyone there is looking for a car.
  • Cartrawler — B2B distribution: your vehicles appear inside airline websites and travel brands it powers.
  • Skyscanner — the comparison site where travellers shortlist car hire on price; real-time rates are essential here.
  • Discovercars — a fast-growing car rental comparison marketplace, friendly to fleets of any size.

Step 2: Sign the supplier agreement

Each platform has a supplier sign-up process — typically an online application covering your company details, locations, fleet size and insurance. Approval time varies from days to a few weeks depending on the platform and season. You can hold agreements with several brokers at once; most operators do, since each channel reaches a different audience.

One caution before you go further: only switch on broker channels once availability can sync automatically. Taking broker bookings while updating availability by hand causes double-bookings, and the resulting cancellations damage your ranking on the platform you worked to join.

Step 3: We connect the channel over the API

This is the part Carhire Manager Web handles. The system exposes OpenTravel Alliance-standard SOAP and REST interfaces — the industry standard brokers, franchises and corporate clients integrate against — so there is nothing custom to build. With the user licence, the APIs and the channel connections built on them are included at no extra cost. With the SaaS option, your first five broker connections are free of charge, and a fee applies for each additional connection.

For each broker, your locations, vehicle groups, equipment and rates are mapped to the platform over the interface. If you also run a franchise, the same approach covers the corporate systems: Sixt International (Cobra), Budget International (Maestro) and Global International (Karve).

Step 4: What flows once you are live

From then on the channel runs itself:

  • Availability and rates out, in real time — per location, vehicle group and equipment item, for any period.
  • Reservations in — new bookings post automatically to your fleet chart, stamped with the right agent and rate.
  • Amendments and cancellations — changes made on the platform update the reservation in your system; nothing is re-keyed.
  • Commission tracked — every booking carries its agent, so commission, agent goals and revenue analysis stay accurate.

Step 5: Manage rates per channel

Rates are held per agent in the back office, so each broker can carry its own pricing alongside your own website's. Bulk changes are quick with Excel import and export, and if you use yield management, prices move with occupancy on their own. The practical routine: review each channel's volume and commission cost monthly, and shift pricing toward the channels that earn best per booking day.

Frequently asked

Do I need my own agreement with each broker?

Yes. The supplier relationship with Booking.com, Rentalcars.com, Cartrawler, Skyscanner, Discovercars or any other platform belongs to your company. Carhire Manager Web provides the technical connection between that account and your back office.

Do broker connections cost extra?

It depends on your option. With the user licence, there are no extra costs — the OpenTravel-standard SOAP and REST APIs and the channel connections built on them are included. With the SaaS option, five broker connections are included free of charge, and there is a fee for each additional connection.

Can I use the REST API for my own systems too?

Yes. The same OpenTravel Alliance SOAP and REST interfaces that brokers integrate against are available for your own website, partners and custom systems.

What happens when a customer cancels on the broker's site?

The cancellation flows into Carhire Manager Web automatically and the vehicle frees up on your fleet chart — no manual work.

See the system for yourself

Back office, booking website, broker APIs and CRM in one platform — every feature included, from €0.20 per booking day.

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