I have followed with all details the step by step process in this lesson, however when I tried to bring the historical_url request, it said 401 error. I don't know if the format have been updated or what's going on but I have been not able to get the historical_url request. Please help!

I think the following code should work: url = f"https://api.apilayer.com/exchangerates_data/timeseries?start_date=2017-04-26&end_date=2018-04-26&symbols=GBP&base=USD&apikey={YOUR_API_KEY}" The KEY is free to get from https://apilayer.com/

Hi, Unfortunately, at some point, the API owners decided to change its structure. That's why the code for this section is broken. Right now, the API has a free plan that has basic functionality, however, even the free plan requires registration. Best, 365 Team, Nikola