Is my coordinate on land or water?

Is it water is a simple API that let's developers easily answer the question of whether any latitude and longitude coordinate is on water or land.

Is it water uses regularly updated, high-resolution data from OpenStreeMaps.

Is it water is the fastest, most accurate, most precise, and most cost effective way to determine if a point is on land or water.


The API accepts a latitude and longitude and returns JSON.

A free tier of this API is available for smaller projects. We charge a small monthly fee for folks who need higher usage capacity of the API. See more pricing details here.


curl ''


                    "water": true,
                    "latitude": 41.9029192,
                    "longitude": -70.2652276