Isochrone API

The Isochrone API calculates the area you can reach from a point within a given travel time. The result is a polygon you can display on a map.

This is useful for showing delivery zones, service areas, or commute ranges.

Base URL

https://routing.maptoolkit.net/isochrone

Authentication

Add your API key as ?api_key=YOUR_API_KEY to every request. See Authentication for details.

Parameters

Parameter	Type	Required	Description
`point`	`lat,lng`	Yes	The starting point.
`time`	number	Yes	Travel time in minutes.
`routeType`	string	Yes	Vehicle type: `car`, `bike`, `foot`, or `transit`. Transit is available only in NRW, Germany.
`format`	string	No	Set to `geojson` to get a GeoJSON geometry object. Required for transit isochrones.
`departure`	date string	No	Departure time for transit routing.

Response

An array of [lat, lng] coordinate pairs that form a polygon.

GET https://routing.maptoolkit.net/isochrone?point=47.268,11.400&time=10&routeType=bike&api_key=YOUR_API_KEY

This is a response to the HTTP GET request shown above:

[
  [
    47.27599805,
    11.39406835
  ],
  [
    47.27524085,
    11.3925068
  ],
  [
    47.2742211,
    11.3920193
  ],
  [
    47.2732573,
    11.3914051
  ],
  ...
]

GeoJSON Response

If you set the URL parameter format=geojson the response will be a GeoJSON object:

{
  "type": "Polygon",
  "coordinates": [[[11.39406835, 47.27599805], [11.3925068, 47.27524085], ...]]
}

Note: In GeoJSON the coordinate format is [lng, lat] in the standard response above, it is [lat, lng].