What is the cost of listing a new coin on your exchange?
You can find out about the cost of listing and possible trading pairs on this page
https://eurekax.io/addcoin Wow! 0.7 BTC for three trading pairs?
In my opinion, this is too high a price. What is the daily trading volume on your exchange?
Many exchanges charge millions of dollars for listing one trading pair. I think this is an acceptable price for an average exchange in terms of trading volume.
If Eureka proves to be a worthy and secure exchange, then this is a normal listing fee.
I know that exchanges from the TOP 50 CMC want 8 bitcoins for listing 1 trading pair.
Therefore, Eureka is a good option for listing good coins.