App is not following the tile usage policy of OpenStreetMap's volunteer-run servers: osm.wiki/Blocked" and "API key required: carto.com/basemaps/apikey" causes map visualization to fail

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Updated:October 31, 2026
Document ID:SPLK055952

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Applicability

Splunk Cloud 10.5

Description

A map visualizations error was reported on Splunk Cloud 10.5 causing dashboards from Maps+ for Splunk application to fail, including an HTTP 403 error with the following messages: "Access blocked Apps is not following the tile usage policy of OpenStreetMap's volunteer-run servers: osm.wiki/Blocked" and "API key required: carto.com/basemaps/apikey"


Investigation

The errors observed:

 

Additionally, another error displayed: 

"API key required: carto.com/basemaps/apikey"


Resolution

It was confirmed that this issue occurs because OSM changed its terms to enforce setting an HTTP Referer header, and CARTO no longer serves raster tiles without an API key.

Splunk Cloud deployed a fix for Classic dashboards that encounter this error, and it was released for 10.6.x versions. Please note that this fix is applicable only to Classic dashboards.

On Splunk Cloud 10.5 version, OpenFreeMap Vector Tiles can be applied as a workaround. This workaround is applicable only to Classic dashboards. 









 



CARTO Documentation


    
    


















     

     
    
            
         	

                
Revision History

                

                    
 
                        
                            

                                Revision
                                Publish Date
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1.0

                                        

                                            
                                                31-Oct-2026
                                            
                                        

                                        
                                            
Initial Release

                                                                    
                                    

          
                            

                        
                    

                

            

        
    








	




    


    

        














 




























    

    

        

    

    
    
     
			
            

























    
    
    
    









            

                

















  
  

  
    
    
    
    
  






            

        
            
            




















  
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