I spent the entire day yesterday trying to set up some automated monitoring of my investments, only to discover most UK market information is locked behind stupid-money APIs.
Anything that improves that situation is a positive.
If it's just for personal use see if your bank/broker has an API for market information. Most do even if it's not advertised.
Also some resellers of market information are pretty affordable for personal use.
That's normal in markets and it even makes sense.
Think about it: shouldn't the market be funded by charging fees to the extremely wealthy participants? The alternative is that it's taxpayer funded, which is a tax subsidy to extremely wealthy participants.