API Call Credentials Invalid

[lnel]

Hi, 

I suddenly have a 'The credentials are invalid' error for my various API calls to 2 different systems via an API key. Everything was working fine for weeks. If I try to edit the credentials, it gives me the "A web API key can only be specified when a web API key name is provided" error. 

If I try to edit the settings, it now looks like a JSON call and I cannot edit the HTTP Header or insert the API key. 

My CSV calls are working fine. I cannot rebuild the query, as it also gives me the 'A web API key can only be specified...". 

I am using a gateway and it is on. 

What could be the issue? Please help!

 

[lnel · Accepted solution]

I managed to solve it! The datasources stopped trying to login "Anonymous" and were now on "Basic" mode.

After I tried your suggestion I actually got a different error: 

The 'X-SmartToken' header is only supported when connecting anonymously. These headers can be used with all authentication types: Accept, Accept-Charset, Accept-Encoding, Accept-Language, Cache-Control, Content-Type, If-Modified-Since, Prefer, Range, Referer

Based on this error, I found the solution here: https://community.powerbi.com/t5/Desktop/Remote-API-Access-to-data-source-sudden-errors/td-p/627973

Thanks!

[V-pazhen-msft]

@lnel 

Please refer to the solution in this post: https://community.powerbi.com/t5/Desktop/Get-data-from-web-error-A-web-API-key-can-only-be-specified...

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

[GilbertQ]

Hi there

It would appear from what you are saying that there might be an issue with the credentials.

What happens if you try and query the API with the Key using Postman, is it successful?