Everywhere you can reach in 10 minutes.
The Isochrone API draws the area someone can reach from a place within a set time, on foot, by bike or by car. Use it to show catchment areas, delivery zones or everything within a short walk of a home or hotel.
Travel time, drawn as an area.
Instead of the distance as the crow flies, the API follows the real streets and paths. Three ways to use the result:
Time bands
Show 5, 10 and 15 minutes at once, so people see at a glance what is close and what is further.
Real streets, not circles
The area follows roads, bridges and hills. In Innsbruck it stretches along the valley and stops where the mountains begin.
What is in reach
Check which of your places lie inside the area: shops, branches, stops or listings.
On foot, by bike, by car.
Drag the walker, the bike or the car onto the map, and each area follows the right network. The demo uses the open-source Isochrone Control for MapLibre.
Walking: streets and footpaths
Cycling: the cycling network
Driving: the fastest roads by car
A place and a time in, an area out.
Send the starting point, the travel time and how people travel. The answer is the outline of the area, ready to draw on any map.
https://routing.maptoolkit.net/isochrone
?point=47.8128,13.0456
&time=10
&routeType=bike
&tolerance=50
&format=geojson
&api_key=YOUR_API_KEYThe request returns the bike area in the hero map as GeoJSON.
From 1 to 60 minutes
Any travel time up to one hour (time). The default is 10 minutes.
Ready for map libraries
With format=geojson, the area comes as GeoJSON that MapLibre and Leaflet draw as it is.
Simple or detailed outline
Set how much the outline is simplified, in metres (tolerance).
GET or POST
Send the parameters in the web address or in the request body.
Walking, cycling or driving
Choose how people travel (routeType: foot, bike or car).
One API key
The key goes into the web address (api_key).
Where travel-time areas help.
Wherever the question is “how close is it, really?”. Three common examples:
Property portals
Show what is within a short walk of each home: shops, schools and public transport.
Delivery areas
Show customers at once whether their address is inside the delivery area.
Hotels and destinations
Guests see which sights, restaurants and stops they can reach on foot.
Areas in these examples are Isochrone API results; places from OpenStreetMap.
Questions about isochrones.
Short answers on traffic, places inside an area and the MapLibre control.
Do car isochrones take traffic into account?
No. Car isochrones do not include traffic, live or typical for the time of day. The area shows how far you get by car on the road network without congestion, so at rush hour your real reach can be smaller. Keep that in mind if you use the area to promise delivery times at busy times of day.
How do I find out which of my locations are inside the area?
The API returns the outline of the area, not a list of places. You compare your own locations with that outline in your app with a point-in-polygon check. The documentation has working examples for MapLibre GL JS and Leaflet that test ten places against a 15-minute walking area, then color and list the ones you can reach.
Is there a ready-made isochrone control for MapLibre?
Yes. The open-source Isochrone Control for MapLibre GL JS adds a handle that people drag onto the map to see the area they can reach from that spot, on foot, by bike or by car. It requests the area, draws it and fits the map to it. You can change the travel time, the travel mode and the colors.
See your use case on a Maptoolkit map.
In the demo, one of our engineers walks you through the platform, your data and the move from your current provider.