Three short walkthroughs — paying for the first time, and connecting your key to the apps you already use. Each one takes a few minutes.
Never touched crypto before? This is the one to read — no card, no name, about ten minutes the first time.
Paste your key and URL into JanitorAI's custom API settings and start chatting with EROS there.
Same idea, SillyTavern's own settings screen — your key carries the same model into it too.