Directions restrictions

Modes	Maximum distance	Maximum segment distance (including profile options)
Foot profiles	6.000 km	200 km
Cycling profiles	6.000 km	300 km
Driving profiles	6.000 km	1.000 km

Isochrones restrictions

Option	Maximum
Locations	5
Intervals	10
Range distance	120 km
Range time (Foot profiles)	20 h
Range time (Cycling profiles)	5 h
Range time (Driving profiles)	1 h

POIs restrictions

Option	Maximum
Maximum Area	50 km2
Maximum Linestring length	500 km
Maximum search radius	2 km

Matrix restrictions

Option	Maximum
Locations	2500 (50 x 50) per request
Locations (with dynamic arguments)	25 (5 x 5) per request

Elevation restrictions

Option	Maximum
Vertex amount	2000

Additional information, examples and tables can be found here.