The following are the Context API examples, showing URL's with different query parameters

Hit Check: Answers the question "what's here?" and displays information about the location (spaces that contain the given point).

https://context.micello.com/mcs/v0/lc?ep=false&lon=-121.9284164&lat=37.6952528&key=your_api_key

Radial Search: Answers the question "what is around here?" within a given distance.  

https://context.micello.com/mcs/v0/lc?ep=false&lon=-121.9284164&lat=37.6952528&radius=100&key=your_api_key

Occupants Details: Provides the details of occupants around given location.

https://context.micello.com/mcs/v0/lc?ep=true&lon=-121.9284164&lat=37.6952528&radius=100&key=your_api_key

POI Search: Provide details of the specific point of interest within a given distance.

https://context.micello.com/mcs/v0/lc?lon=-121.94427766544928&lat=37.32584701824451&radius=100&geometry_type=atm&ep=false&key=your_api_key

If specifying geometry_type & excluding parameter radius then the resultant response indicates whether the point is contained within that POI.

The tool below will help create a Test URL. Try it out!