Thunder allows this and has good performance. It's on the IzzyOnDroid f-droid repo but hasn't hit playstore yet.

Rofl I don't know why someone downvoted you, this was nice information thanks.

I like to add that the keys must be wrapped in double quotes to be parsed as proper JSON.

# POST to login endpoint
curl -v --data '{"username_or_email": "username", "password": "password"}' --header 'Content-Type: application/json' https://example.com/api/v3/user/login

Yeah if you host your own instance you can query about everything that's being federated.

Porkbun is offering the first year free for a new .dev or .app domain https://porkbun.com/event/freeappdevdomain

$10/year renewal is really cheap too in my experience.