This API helps to query rooms, price, facilities, policities, etc information from many hotels around the world to create a travelling site/application such as hotels.com
Travelpayouts Data API – the way to get travel insights for your site or blog. Get flight price trends and find popular destinations for your customers.
Mashvisor APIs allow you to conduct real estate market analysis of any US housing market for both long term rental properties (traditional rentals) and short term rental properties (Airbnb rentals). Furthermore, you get access to nationwide real estate data for traditional rental listings as well as Airbnb listings. The data includes but is not limited to price estimate of MLS listings and off market properties, traditional rental rates (rental income), recurring rental expenses, Airbnb night...
Expedia API refers to all the developer APIs that Expedia provides. This includes:
Some may find that getting access and using the Expedia API could be troublesome. In this API collection, you’ll find tons of easy to use REST APIs that you can use instead. These APIs listed here provide data and functionality on booking, travel, car rental, and more.
GDS API Integration. GDS is a worldwide “Global Distribution System” computerized reservation network used as a single point of access for accommodating airline seats, hotel rooms, rental cars, and other travel related items by travel agents, online reservation sites, and large corporations. - Source
Yes, TripAdvisor has an API, which you can access here. Per the API’s description: These APIs help query real-time flight prices, hotel bookings, restaurants, attractions, and more.
Yes, but as of April 10, 2018, the QPX Express API has been deprecated. While this API is deprecated, there are still many flight APIs available including Skyscanner, which is widely accepted as an alternative to the Google Flights API.