What do you think about a platform similar to clarity for the travel vertical ?

As I understand , you have domain expertise in travel industry and have a unique idea that you think will is needed in the market. I also assume that you did some study and came to conclusion that website is what you need (Not mobile first .. re-think !!) If you are a first time found I would strongly suggest you to understand the "Lean Start-Up" way (http://theleanstartup.com/) . I have developed products for big enterprises and for small businesses and and done my own couple startups in the past that ended up in the graveyard (No product market fit). Step 1 - Put up a landing page and validate your idea (https://medium.com/@joelgascoigne/how-to-successfully-validate-your-idea-with-a-landing-page-mvp-ef3c2d02dc51) You probably can do this under $50 Step 2 - While your idea was getting validated, you would have collected some emails. Talk to them and figure out the appetite and try to pre-sell the product or service.. Step 3 - Create an MVP. Unless you have something totally unique and unconventional, most of the data driven web products can be created using a word-press or any similar frameworks. Step 4 - Consult a technologist on how to go about it and get a landscape and roadmap developed. Ask for help to vett the right freelancer or part timer for this job Step 5 - If the version 1 makes you any money..man !! you made it.. double down ..At this point you can think of rebuilding the backend etc with the better architecture. These are no 5 magic steps .. I wrote it as I was thinking it loud. Feel free to contact .. ..and good luck !!

That's a much more complicated question than it appears to be, as there are multiple sources which will get you some of the inventory, but nothing which will get you all of the inventory. If you look at an OTA, they are pulling from typical sources like SABRE or Amadeus, but also from what is in effect their own inventory, where hotels are either going in via an extranet or there's some kind of direct-connect to the system the hotel is operating on (which could be one of many, including none at all). In fact, some of the OTA's make that proprietary inventory available too, via an API and on a commissionable sales basis. There's just no one-size-fits-all access point - especially when you consider that worldwide the hotel business is actually very un-aggregated with something like 80% of all hotel room capacity operated independently (that is to say, not branded or part of a chain like Starwood, Accor, IHG etc.). It's a big part of why OTA's have invested so heavily in technology to manage and distribute this type of inventory. It's not easily done as the technology used in the hospitality industry is often not great and it's unconsolidated to there's value and negotiating strength to be brought from consolidating it.

Before you spend $ or time marketing your service / website, ensure that your brand itself is quite strong. For example, if your name or domain is awkward, ambiguous, or off-putting, then every dollar and hour you spend promoting your brand will work less efficiently in your favor than if you were spending the same amount of money and time marketing something more robust and attractive.

Yes Wix supports a mulitude of APIs to used for various fetch calls for your web pages. If you already have to API's in mind you can venture off within you WIX code to integrate within your application's processes. There shouldn't be any complications getting this done. Please see the link below for more information https://www.wix.com/code/home/api

Several ways come to mind. Formulate your idea into one (or better all) of the following + you'll know by interest level if you have a winner. 1) My favorite. Start a Meetup Group (set the zipcode of group) to match the zipcode of a US city where most people originate travel to your target destination. For example, If your targeting running tours in Chang Mai Thailand, research what city people in US most travel from to visit Chang Mai. Then run Meetup events related to Thai Travel topics. 2) Package information about Thai Travel into a PDF + sell it via Facebook Ads. 3) Start a Kickstarter project. 4) Speak at existing Travel Meetups + other groups + related conferences about your idea.