Whether you're building a travel portal, an OTA, or a hospitality platform, car rental is no longer optional — it's an essential revenue stream and a key part of the end-to-end traveller experience. The bridge between your system and the global car rental inventory? A well-chosen car rental API.

This guide breaks down the major car rental API providers across three categories: Global Distribution Systems (GDSs), tech service providers, and OTA aggregators — along with direct supplier integration options, so you can make an informed decision for your platform.

Why Car Rental API Integration Matters

The global car rental market is growing at approximately 9% CAGR, driven by post-pandemic travel recovery and a strong preference for independent, flexible travel. Travellers expect to search, compare, and book vehicles as seamlessly as flights or hotels — all in one place.

For travel businesses, this creates a clear opportunity: embed car rental into your booking flow and unlock:

• Additional revenue through commissions and upsells

• Increased session value and reduced drop-off

• A more complete travel experience for your customers

• Competitive differentiation in a crowded OTA landscape

The question isn't whether to integrate car rental APIs — it's which ones to integrate and how.

Category 1: GDS Car Rental APIs

Global Distribution Systems are the backbone of travel inventory distribution. They aggregate supply from hundreds of car rental brands and expose it through standardised APIs.

Sabre Car Rental API

Sabre connects to over 37 car rental brands across 40,000 locations globally. Its car API suite includes:

• Location search by city codes and vendor

• Vehicle availability, types, and rate comparison

• Car booking, modification, and cancellation

• Geo Search API with radius, polygon, and distance features

• Flight arrival data and multi-location drop-off support

Sabre is a strong choice for enterprise-grade booking engines that require deep GDS integration and wide brand coverage.

Amadeus Car & Transfers Enterprise API

Amadeus connects to over 69 global car rental providers, including regional and local operators. Its enterprise API delivers:

• Location, availability, and rate retrieval

• Full booking lifecycle management

• Transfer services with vehicle class selection

Note: Amadeus car APIs are part of the enterprise suite and require direct negotiation. API access is key-based after account registration.

Travelport XML API

Travelport aggregates inventory from four GDS networks — Galileo, Apollo, Worldspan, and Axess — giving it exceptional breadth. Features include:

• Availability search with images, details, and pricing

• Vehicle reservation and full post-booking operations (modification, retrieval, cancellation)

• 30-day test access available on request

Category 2: Tech Service Provider APIs

These B2B platforms are built specifically for travel businesses that want car rental capabilities without direct GDS contracts or high per-transaction fees.

CarTrawler

CarTrawler is one of the most cost-effective alternatives to GDS for car rental distribution. It eliminates GDS fees entirely — suppliers pay a commission only after the customer pays at the counter. Access covers 2,000+ agents across 50,000 locations worldwide.

CarTrawler is particularly well-suited for niche travel platforms, airline ancillary revenue programmes, and hospitality brands adding ground transport.

Travelopro Car Hire API

Travelopro targets both SMEs and enterprise travel companies, spanning 100+ countries. Its API features:

• Multi-criteria car deal search

• Real-time availability and pricing

• Payment gateway integration

• Reservation management

• Multi-language customer support

Trawex Car API

Trawex connects OTAs, tour operators, and travel management companies to car deals across 70+ countries. Its platform includes a booking engine, reservation system, supplier aggregation, and channel management — all API-accessible.

Key capabilities: instant booking confirmations, live price feeds, pick-up and drop-off management, and location-based fee customisation.

eTravos Car Booking API

India's largest cloud travel technology platform, eTravos serves 300+ clients across the Middle East, Africa, and Europe. Its car booking API supports:

• Search by location, travel date, and driver nationality

• Filters by category, door count, vehicle size

• Insurance selection

• Real-time price and availability checks

• Notifications and white label options

Smartcar API

Unlike the other providers, Smartcar is a vehicle connectivity API — it connects car computers to third-party apps for fleet management use cases such as remote unlocking, location tracking, odometer readings, fuel level, and tyre pressure monitoring.

It's particularly relevant for car-sharing and peer-to-peer rental platforms. Turo, for example, uses Smartcar to allow vehicle owners to remotely unlock cars for customers via the app.

Category 3: OTA and Aggregator Car Rental APIs

Aggregators sit closest to the consumer and offer the widest price visibility across suppliers.

Skyscanner Car Hire API

Skyscanner's global car hire distribution channel provides:

• Broad car search queries

• Real-time price streaming

• Live car price feeds and browsing support

Access requires a direct partner application. Alternatively, affiliates can use Skyscanner's widgets, deep-links, and banners through their affiliate programme.

Priceline Partner Network API

Priceline's partner API, enhanced by Rentalcars content, covers 180+ countries with dynamic car rental data. It's ideal for high-volume platforms — Priceline requires a minimum of five bookings per day for consideration. White label booking products are also available.

Auto Europe

Auto Europe operates across 180+ countries and is already integrated with major brands including Alamo, Avis, Sixt, and Hertz. It offers:

• Vehicle hire (including prestige and sports cars)

• Chauffeur and transfer services

• Affiliate integration via widgets, links, and banners

Discover Cars

Discover Cars aggregates inventory from Hertz, Alamo, Enterprise, Sixt, and more across 10,000 locations in 145 countries. Integration options include:

• XML API for fully custom integrations

• White label landing pages

• Banners, affiliate links, and widgets

• Extranet for manual rental management

Affiliates earn a 70% share from offers, with partner terms negotiated directly.

Affiliate and Non-API Connectivity Options

Not every integration needs to be API-first. For platforms that want quick, low-effort car rental connectivity, affiliate programmes offer a viable starting point:

Direct Supplier Integration

For platforms with sufficient booking volume, direct integration with major car rental brands offers better margins and tighter control over the customer experience.

• Hertz: API access for airline, hotel, rail, and travel agent partners via the Hertz Applicant Programme. Covers 145+ countries.

• Avis: Developer API for location search, availability, rates, and reservation summary. Also supports white label and affiliate options.

• Budget: Affiliate programme with banners and an agent extranet (US and Canada only). Also distributed through all major GDSs.

• Enterprise Holdings (Alamo, National, Enterprise): Affiliate programme with banners, deep-links, product landing pages, and promotional text links.

• Sixt: SHARE API for carsharing access plus updated banners and links. Agent extranet available.

• Europcar: XML web interface for partner distribution across 4,000 locations in 140+ countries.

Emerging Trends Shaping Car Rental APIs

Point-to-Point Carsharing

Short-term carsharing is reshaping how APIs are designed. Platforms like Car2Go expose APIs for real-time vehicle availability, parking locations, and nearby fuel stations — enabling flexible, by-the-hour rental models that traditional APIs weren't built for.

Green Vehicle Integration

Eco-conscious travellers are a fast-growing segment. Green Motion's API connects management systems to EV-specific infrastructure: charging stations, charging point records, recharge payments, and carsharing reservation systems. Platforms that expose sustainability filters will differentiate meaningfully.

Bundled In-Destination Experiences

Car rental is increasingly bundled with activities and experiences. Hertz's integration with PlacePass allows customers to book local excursions alongside their vehicle hire — a model that travel platforms can replicate through combined API calls to car rental and activities providers.

Choosing the Right Car Rental API Stack

No single provider serves every use case. Here's a quick decision framework:

Consider these factors when evaluating:

• Volume requirements — some APIs (Priceline) require minimum daily bookings

• Geographic coverage — match provider reach to your target markets

• Commission vs. fee models — GDS fees vs. counter-pay models like CarTrawler

• White label vs. custom API — speed to market vs. full UX control

• Supplier diversity — aggregators win on breadth; direct integrations win on margin

Build Your Car Rental Integration with Teenva AI

At Teenva AI & Digital Ventures, we specialise in building travel technology platforms — from full-featured travel portals and booking engines to API integration layers that connect GDSs, OTAs, and direct supplier systems into a seamless experience.

Whether you're launching a new travel platform, adding car rental to an existing booking flow, or migrating from one API provider to another, our team can design, develop, and deploy the right integration architecture for your business.

Let's build it together:

• 📧 sales@teenvaai.com

• 📞 +91 9572020107

• 🌐 teenvaai.com