Report on PBI Service using api.powerbi.com

Hello,Gabry ,thanks for your concern about this issue.

Your answer is excellent!
And I would like to share some additional solutions below.

Hi,mike12345262262 .I am glad to help you.
1. Regarding the 403 error you encountered when accessing the web site. Usually this is due to unauthorized access, you need an access token.
I hope the following issue can help you
URL:
https://community.fabric.microsoft.com/t5/Developer/Error-403-Access-to-api-powerbi-com-was-denied/m-p/2546798

2. About using Power BI API to get usage metric details

I hope the following issue will help you, here are some suggestions on how to use the API to get usage metric details.
You need to ensure that the amount can get the relevant access rights, otherwise you may be mentioned HTTP ERROR 403.

URL:
Solved: Re: How to fetch usage metric details through Powe... - Microsoft Fabric Community
Solved: How to get Power Bi report usage metrices and perf... - Microsoft Fabric Community
Solved: Monitoring usage for shared reports via Public Web... - Microsoft Fabric Community

I hope my suggestions give you good ideas, if you have any more questions, please clarify in a follow-up reply.
Best Regards,
Carson Jian,
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.