According the Mapbox API documentation (https://www.mapbox.com/apidocumentation/#static) the URL to a Mapbox map should have the below format: 

•  /styles/v1/{MapName}/{style_id}/static/{lon},{lat},{zoom},/{width}x{height}?&acce ss_token=<your_access_token>

In the following steps, you will create an URL and test it using a web browser. 

1. Open a web browser and go to the link https://www.mapbox.com/  

2. Navigate to Products – Maps, select MapBox_Light and then go to View Mapbox Light Live. 

3. Copy the URL to see the MapName and the Access Token to test it. 

https://api.mapbox.com/styles/v1/mapbox/lightv9.html?title=true&access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpejY4M29ia zA2Z2gycXA4N2pmbDZmangifQ.-g_vE53SD2WrJ6tFX7QHmA#1.07/0/0 

4. Navigate to the below link to test the map provider: 

https://api.mapbox.com/styles/v1/mapbox/lightv9/static/0,0,0/800x600?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpejY4 M29iazA2Z2gycXA4N2pmbDZmangifQ.-g_vE53SD2WrJ6tFX7QHmA