Yes, you can book an online taxi service in Jaipur through various platforms. Here are some options:

businesses_map{"name":"Rajputana Cabs","location":"Jaipur, India","description":"A Jaipur-based taxi service offering private cabs with professional drivers for city tours, outstation trips, and airport transfers.","cite":"turn0search8"}{"name":"MakeMyTrip","location":"Jaipur, India","description":"An online travel portal providing cab booking services with options for hatchbacks, sedans, and SUVs for both one-way and round trips.","cite":"turn0search2"}{"name":"Savaari Car Rentals","location":"Jaipur, India","description":"Offers chauffeur-driven car rentals with a variety of vehicle options for intercity travel, including trips from Jaipur to Udaipur.","cite":"turn0search0"}{"name":"Buzzway","location":"Jaipur, India","description":"Provides taxi services with transparent pricing, offering per kilometer fares for various routes, including Jaipur to Udaipur.","cite":"turn0search6"}{"name":"Meru Cabs","location":"Jaipur, India","description":"An app-based transportation service offering city rides, rentals, airport transfers, and outstation travel across multiple cities, including Jaipur.","cite":"turn0search10"}

These services allow you to book taxis online for various needs, including local sightseeing, airport transfers, and intercity travel. You can visit their websites or download their mobile apps to make a booking. It's advisable to compare prices, vehicle options, and customer reviews to choose the service that best suits your requirements.