From platform.deepseek.com under API keys. Stored only in this browser's local storage, sent only to the API base URL below.
Blank sends requests to wherever this page is hosted, which is correct if it's served from your own proxy. Fill this in only if you're opening this page as a local file, or want to point it somewhere else: use your proxy URL, not api.deepseek.com directly, since browsers block direct calls to it.
1.0
If a message fails immediately with a network error, this page needs to be served through your own proxy rather than opened as a local file, since browsers block direct calls to api.deepseek.com. Deploy the small proxy script provided alongside this page (it also serves this exact interface at its own address), then open that address instead of a downloaded file.