Short answer: there is no single best hotel API for a travel website, because "best" depends on your destinations, volumes and business model. Bed banks give broad wholesale inventory under one contract, aggregators give many suppliers through one technical layer, and direct connects give the best commercial terms with the most work. Judge candidates on unique bookable inventory where you sell, content and mapping quality, live-data behaviour under load, certification effort and support responsiveness - not on the headline property count.
The three routes to hotel inventory
Bed banks such as Hotelbeds (APItude), WebBeds, TBO and RateHawk contract wholesale inventory themselves and sell it to you under one commercial agreement. You get depth and net rates, but each bed bank is one more contract, one more API dialect and one more feed to map. Our guide to what a bed bank is covers the model in detail.
Aggregators and switches connect many bed banks and channels behind one normalised API. They cut integration work dramatically, at the cost of an extra layer in the chain - commercially, technically or both. You may still need your own agreements with the underlying suppliers.
Direct connects mean integrating a specific source directly: a large OTA programme such as Expedia's partner API, Booking.com's Demand API, a chain, or hotels you contract yourself. Terms and content are first-hand, but access is gated: Expedia Partner Solutions, for example, approves use cases and requires certification before production access.
Most real platforms end up hybrid: one or two bed banks, perhaps an aggregator for the long tail, and direct connects where volume justifies them, all merged behind one hotel booking engine.
Coverage: the number that matters
Headline property counts are the least useful number in the brochure. Feeds overlap heavily, counts include properties that rarely return availability, and a supplier with a million listings worldwide can still be thin in the ten cities you actually sell. The number that matters is unique, bookable, competitively priced inventory in your target destinations. You can only learn it by testing: run scripted searches for your real routes and dates against each candidate's sandbox and compare what comes back.
Content quality and static data
Bad content loses bookings as surely as bad prices: missing photos, thin descriptions, wrong star ratings and unmapped duplicates all depress conversion. Check how each supplier delivers static content (files or API), how often it updates, whether images are usable at modern sizes, and whether the supplier provides mapping codes to external master IDs. If you plan to run more than one feed, budget for hotel and room mapping from day one; it is the difference between more suppliers meaning better prices and more suppliers meaning duplicate listings.
Static files vs live availability
Hotel APIs split data into static content (descriptions, photos, facilities) that you sync on a schedule, and live data (availability, prices, cancellation terms) that you fetch at search time. The design question is how much live traffic you generate: suppliers apply fair-use limits and watch your look to book ratio, so a site that fires live requests for every page view will hit friction quickly. Production integrations cache search responses briefly, sync content nightly, and always reprice at booking time so the customer confirms against live data.
Decision table
| Criterion | Bed bank | Aggregator / switch | Direct connect |
|---|---|---|---|
| Contracts needed | One per bed bank | One, sometimes plus supplier agreements | One per source, hardest to obtain |
| Integration effort | One API each, moderate | Lowest: one API for many feeds | Highest per source |
| Commercials | Wholesale net rates | Layer may take a share or a fee | Best terms at volume |
| Content and mapping | Varies by supplier | Often normalised for you | First-hand, usually cleanest |
| Control and transparency | Medium | Lowest: extra layer in the chain | Highest |
| Best for | First serious inventory, breadth | Fast launch, long-tail suppliers | Core destinations at volume |
Certification, contracts and go-live
Every route involves a commercial step you cannot code around: you need your own agreement with each supplier, and most enforce a certification pass before production credentials. Expedia's EPS Rapid documentation describes application, sandbox testing and certification stages; Hotelbeds and other bed banks similarly review test bookings, cancellation handling and error behaviour before enabling live traffic. Plan for this in your timeline - certification is usually days to weeks of back-and-forth, and it is where sloppy error handling gets caught.
We take integrations through this process routinely as part of our hotel API integration service, and the same discipline applies across flights and ancillaries on our wider travel API integration work.
Questions to ask every supplier
- How many bookable properties do you have in our top ten destinations, and can we verify that in the sandbox?
- Which part of your inventory is directly contracted versus sourced from other wholesalers?
- What are your fair-use or look to book limits, and what happens when we exceed them?
- How is static content delivered and how often does it change? Do you provide external master IDs for mapping?
- What are the caching rules on availability and price responses?
- What does certification involve, what do you test, and how long does it typically take?
- What are the payment models, credit terms and settlement currencies?
- What support do we get post-launch: response times, escalation path, and how are booking discrepancies resolved?
Mistakes to avoid
- Choosing on property count. Overlapping and unbookable listings inflate every brochure number.
- Ignoring the second feed problem. Adding suppliers without mapping produces duplicates, not better prices.
- Testing only the happy path. Cancellation flows, price changes at booking and error responses are where integrations fail in production - and what certification teams check.
- Signing before sandbox testing. Run your real destination searches against test credentials before any commitment.
- Forgetting the commercial step. No vendor, including us, can grant you inventory access; the agreement with the supplier is always yours.
This article is general information about travel technology and online marketing. It is not legal, tax or financial advice, and advertising platform policies change often. Check the current policy documents and take professional advice for your own situation.