With an international student card, you will have discounts in different places, to get it you can go online or you can do it locally in several universities.
As for documents, you must have a picture with a blue or white background, a copy of proof that you are a full-time student with a date, and a copy of and identity proof. After giving in the documents, the card can take from 3-4 weeks.
Add your location on this page and it will tell you where you should go.
This card brings so many benefits that they included them in an app, find it on Android or IOS.
Our advice:
Remember that it has a price, but it is something that wont matter thanks to the benefits, discount in restaurants, museums, attractions and other places of New York City.