ApI Error Code: -2014 Message: API-key format invalid

Hi! I appriciate any help. I got an error when I try to reach https://eapi.binance.com/eapi/v1/
I got ApI Error Code: -2014 Message: API-key format invalid

I try to get response from European Options.

I can provide any part of the code for. I use C# language.

“API-key format invalid” can be returned when the Request URL is not correctly build.
You should debug your local code and see what’s the final URL format that’s sent.

Using a very simple request as example, the request format should look like https://eapi.binance.com/eapi/v1/exchangeInfo, where https://eapi.binance.com is the base URL and /eapi/v1/exchangeInfo the endpoint you want to get information.