DeepSeek TUI provider setup matters because auth success still depends on the right backend path

Many users stop at API key setup, but provider selection often determines whether your credentials, endpoints, and runtime expectations actually line up.

Why provider setup deserves its own page

Provider questions are not the same as “where do I paste my API key?” Users often need to understand which backend they are targeting, whether they should change endpoint defaults, and how that choice affects the rest of the runtime behavior.

What to check first

Which provider path are you actually trying to use?
Does your API key belong to that provider?
Are you still relying on default endpoint assumptions that no longer fit?