Will Jesse support decentralized exchanges?

Most likely yes.

There's no ETA for this feature but it's definitely on our long-term roadmap.

We'll most likely support DyDx and maybe also 1inch which opens the door to many blockchains such as Ethereum, Binance Smart Chain, Polygon, etc.

Update: We now support them. We began by adding support for DYDX and support for ApexPro is also on the way.