Do I need to supply passenger details for every booking I make? Chris Gunton 06 July 2021 08:15 Updated Yes, the passenger details for each person travelling on every booking must be supplied. My Eurotunnel account holders will be able to store and automatically add API for future bookings. See our how-to guides for more information Related articles I've added additional passengers to the car How do I add or change my API? What information do you require? Can I supply my API by phone? What is Advance Passenger Information (API)? Comments 0 comments Please sign in to leave a comment.