Sometimes it'd be really helpful to be able to narrow down APIs in the explorer based on their expected outputs.
The current filter only works off the name and description, but when you need to find the one API you almost never use that returns one obscure field it can take forever to find it. Sometimes I resort to downloading the swagger to backtrack but that's not an option everyone is aware of and hardly user friendly as I can't imagine most developers habitually download your swagger and browse it or compare it to historical versions on a whim.
Having the explorer able to answer that question would theoretically reduce forum posts asking 'what endpoint has this' or 'does any endpoint have this'.