What card is best to choose for the project?

Question

JavaScript

Good time everyone! We are developing a project in which, according to the technical specification, there should be a map with the location of objects and filtering them. The requirement is as follows:
1) Customization (setting the color scheme without losing the "comprehensibility" of roads. rivers, etc.)
2) Clastorization of markers.
3) Drawing paths on the map
4) Easily accessible API
5) Preferably free
PS google maps and yandex maps, respectively, are not of interest

Answer 1

OpenLayers