Eurostar – Advance Passenger Information (API){Contact us link}

Advance Passenger Information (API)

• Required for all passengers travelling to or from the UK

• Includes your personal details and passport information

• Must be completed before departure so your tickets can be generated

Electronic Travel Authorisation (ETA)

• A digital travel permit required for non-UK citizens visiting the UK for short stays (up to 6 months)

• Applies from 2 April 2025 to EU, EEA and Swiss citizens, unless exempt (e.g. Irish passport holders)

• Required for every traveller, including babies.
   

• Every passenger on the booking must complete the API form

• If API is missing for even one traveller, no tickets will be issued

• Children under 4 years travelling without a ticket (on an adult’s lap) do not need API

• Children under 4 years with their own ticket do need API

You’ll need to enter these details exactly as they appear on your passport:

• Full name

• Date of birth

• Gender

• Nationality

• Document type (passport only)

• Passport number

• Country of issue

• Expiry date

Important:
Eurostar only accepts passports for API.
If you are travelling with a national ID card, you must complete API directly with Eurostar.

You must provide your API after booking and before travel.
Your tickets cannot be generated until all API details have been submitted.

You must submit your API on our website.
This form is not available in the app.

If you booked with a Trainline account:

• Log in to your account

• Go to My bookings

• Fill in the API form beside your reservation

If you booked as a guest:

• Use the Manage booking link in your confirmation email, or

• Access it through Find a booking

👉 Information entered in the API form is not saved.
You must complete it again for future Eurostar journeys.

No problem — you can correct your details as many times as needed.
Just make sure the passenger name matches the name on the ticket.
You can also resend the updated information directly via the Eurostar website.

If your tickets still haven’t arrived after submitting the API:
👉 Please contact us and we’ll look into it.