In some spare time, with the help of ChatGPT and some of my skills, I created a website called Cheap Crypto Deal. It compares crypto swaps that I regularly use to exchange my coins.
Since I was always looking for the best deals, I simply combined APIs to display all results from different swaps in one table.
The form is simple, you just have to enter a value, source and destination crypto, then press a button, once the check is done, a table with sorted values is displayed.
Here is the URL:
https://cryptodeal.cheap/you can find it also as a hidden service (it works without JS):
http://lp7lxv6tkk4zepitwmf2uo3pzypvmwgglrzhdofekjswjpday7qemgqd.onion/If you would like to know more about this silly project you can read about it on my blog:
https://0ut3r.space/2025/03/23/cheap-crypto-deal/Not everything works as it should yet, I mean if you set standard, real values it will show you good results, but if you set something ridiculous like 9999 BTC to XMR don't expect to see real numbers

I tried to limit things based on each API response with max and min limits, but yeah, probably still something weird can show up.
I will be adding a few more exchanges to the list soon. But if anyone sees any major errors or has any suggestions, let me know, I'll be happy to add something or fix it in my spare time.
For a test, I recommend entering a value of 0.07 BTC to LTC to see how everything works and then your values for testing.
Enjoy.