To help you with the connection process with the OTAs it is important that you know which policy will be adopted by each channel at the moment that the guest closes the booking.

One of the possible models is the Instant Booking. This means that the guest will be able to book directly through the channel, without the need to contact the host to validate or approve the booking.

See below the OTAs that support Instant Booking:

AirbnbIt is possible to activate the Instant Booking option on the channel.
Before making the booking, the guest must fill in some requirements set by Airbnb such as Full Name, Contact Information and Payment Information. In addition to accepting the House Rules.
BookingCurrently accepts only Instant Bookings.
The guests are also required to meet some requirements such as Verified Phone Number or Addresses, Payment Information, etc.
VRBOThe channel makes it possible to activate the Instant Booking.
The guests must meet the requirements of the House Rules, in addition to the established Terms and Policies.
ExpediaThe channel also accepts Instant Bookings, in case the guest meets the requirements.
TripAdvisorThe Instant Booking feature can only be activated by accounts that meet the following prerequisites: acceptance rate of 75%, have received at least three bookings in the last two years, have a free listing plan and have a cancellation rate of 20% maximum.
Currently, the channel is not accepting new connections.
Homes & VillasThe channel supports only Instant Bookings.
HousiThe channel works only with Instant Booking. However, if necessary, the Marketplace Housi team will be able to intermediate the communication between guest and host for negotiations.
Remember that to expand the range of OTAs, has the feature to avoid last minute reservations, which guarantees establishments an operating margin for not receiving unforeseen bookings in conflict with their operations.
If this is what prevents you from connecting to the channels, check out more details in the link below and proceed with your connection with them! I want to know more...

Now that you already know which OTAs work with Instant Booking, how about checking out more related subjects?