Re: WAVES. Ultimate crypto-tokens blockchain platform.

I have a question: is a waves asset automatically listed at the waves dex?
This dex raise fast (CoEval, etc.)

yes waves asset as automatically tradable on dex as soon as they are created.
I don't understand the second question...

Does it mean that we can only trade waves asset on dex. Would it be possible for exchanges like bittrex to list waves asset in future?

Yes, on DEX can only WAVES assets be traded. WAVES itself can already be traded on several exchanges. If the creators of other WAVES assets want this too, they need to contact the exchanges. If they see potential in the asset, they will list it.

Would it be trivial for the exchanges to add standalone WAVES assets individually? Do you know of any waves asset being traded in an exchange other than WAVES dex?

They would need to run a WAVES full node. But I guess it's more a business decision. You can check here, which assets are traded on other exchanges: https://coinmarketcap.com/exchanges/waves-dex/. Just click on the currency and check the markets.