Here are instructions for adding Worldcoin WDC to AtomicDEX. As the name implies, it's decentralized exchange. It works on Komodo platform. They already have the big coins and are now looking for more coins that are not widely available in big exchanges. Any supported coin/token can be traded for any supported coin/token so there are thousands of potential market pairs already.

UTXO coins need this RPC API calls: https://github.com/KomodoPlatform/coins#prerequisites-for-a-coin-to-be-compatible-with-atomicdex-api
UTXO coins also need electrumx support, the coin must be added to: https://github.com/spesmilo/electrumx/blob/master/electrumx/lib/coins.py
and someone needs to run the needed servers
best is to write to partners@komodoplatform.com