I'm having trouble viewing a Digital Globe base map in QGIS. I'm following Mapbox's instructions from their API https://mapsapidocs.digitalglobe.com/v2.0/docs/tiles (bottom section that describes connecting with WMTS). In QGIS 3.2.0, I add new WMS/WMTS layer (“Layer” -> “Add Layer” -> “Add WMS/WMTS Layer…”), and I add the new layer with the URL with my own Mapbox public token (i.e. https://api.mapbox.com/styles/v1/digitalglobe/cinvynyut001db4m6xwd5cz1f/wmts?access_token=MY_TOKEN) and I hit connect, but I keep getting the error message:
Failed to download capabilities: Download of capabilities failed: Error transferring https: https://api.mapbox.com/styles/v1/digitalglobe/cinvynyut001db4m6xwd5cz1f/wmts?access_token=pk.ey...bunch of token characters...=WMS&REQUEST=GetCapabilities
-server replied: Not Found
My token starts with pk.ey and a bunch of random characters so I'm sure its the right one. I'm using the mapbox Pay-as-you-go plan, and I haven't added any money to the account. Do I need to pay for this service? I thought Mapbox offered some limited views of Digital Globe images for free. Or maybe it's a technical problem.