**Can I have keys from two providers at the same time, for example to split usage?** No — only one own key active at any time (section 3). To switch providers, use "Change key" and confirm the replacement. **Do I get to see my full key again after saving it?** No, never — only the last characters, as a reference ("Ends in ‹hint›"). If you lose it or forget it, you'll need to ask your provider for a new one and replace it here. **What happens to my conversations while my key is "Suspicious" and I DON'T have fallback on?** That turn fails with an honest notice instead of generating a cost you wouldn't be able to see reflected on your provider's bill (section 6) — turn it on if you'd rather the platform answer with its own key while you resolve the problem. **Does automatic fallback mix my usage with my own key's in the breakdown?** No — fallback has its own row ("Fallback") in the breakdown by source, separate from "Your own key" (section 5). **Can I use an endpoint on my own internal network or a private IP as a "custom endpoint"?** No — only public `https://` addresses with a full domain name are accepted; an internal, local, or private IP address is rejected when saving, with no exceptions (section 2). **Can I choose any provider from the list?** Only the ones the platform has available at any given time — if you picked one that isn't, the form itself tells you when you try to save, before saving anything. **What happens to an agent that had a model from another provider pinned?** It becomes "unavailable" with a reason until you change its model (section 4) — it's never secretly served with a different provider than the one pinned.