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Internal server error (500) when connecting to API with Bearer Token



So I am trying to connect to an API that requires a Bearer token. When I try to simulate in POSTMAN I successfully get the response data I need:





Here you can see the different Headers 





But when connecting to PowerBi as "Anonymous" and adding all the Headers I get the error message



The server is up as I am getting a response from POSTMAN. So I don't know what I am doing wrong.


Thanks for your help

Community Support
Community Support

Hi @Anderrated ,

Base on your description and screenshots , you are encountering issues when connected to the API in Power BI Desktop. However, you are able to successfully connect to the API using Postman. The '500 Internal Server Error' typically indicates a server-side issue, could you please check and confirm the following info?

  • Ensure the Bearer token used in Power BI is the same as in Postman and the token hasn't expired.vyiruanmsft_0-1720592417513.png
  • Make sure all the headers are same in Power BI Desktop as in Postman
  • Update the version of your Power BI Desktop to the latest one

In addition,  you can refer the following link to connect to API.

Power BI REST API: Step-by-step Guide to Use It 

Or create a blank query in Power Query Editor with the following codes:

    url = "",
    headers = [
        #"Authorization" = "Bearer YOUR_BEARER_TOKEN",
        #"Content-Type" = "application/json"
    response = Web.Contents(url, [Headers=headers]),
    jsonResponse = Json.Document(response)

Best Regards

Community Support Team _ Rena
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi @v-yiruan-msft 


Thanks for your reply. I have tried what you mentioned but obtained the same result. Blank query returns the same error message: Internal server error (500). The token is not expired and is the same. Do you have any more ideas?

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