Arriving in Paris - Taxis from Eurostar
When you travel from London to Paris on the Eurostar, you should ensure you exit at the front of the train and quickly make your way towards the taxi rank (at the end of the platform, turn right and follow the signs for the exit).
The queue for the taxis very quickly builds with all the Eurostar travellers and sometimes can take up to over an hour even as late as 10pm.
Alternatively, if travelling in rush hour, I would recommend the metro.
This tip has the address "Gard du nord"