# Keys, devices and sessions

Your license key, MCP keys, active sessions and sign-in history.

Everything that connects to your account lives in **Settings → Platforms & API
keys**.

## License key

One key for the TradingView extension.

- It appears once your plan is active. If it says **Waiting for approval**, it
  appears automatically when approved.
- The full key is shown once. Lost it? **Regenerate** gives you a new one and
  the old one stops working at once.
- Never share it. A key used from too many networks in a day is blocked.

## One device at a time

Your access works on one platform and one device at a time: the website,
TradingView, MotiveWave or the desktop app. Starting another one signs the
first out. **Active sessions** shows what is signed in now, and you can end
any of them.

## MCP keys and AI connections

AI assistants connect with Clerk browser sign-in or an MCP key. q-bitf-issued
keys and older connections are listed under **AI assistants (MCP)**. Manage a
new Clerk OAuth grant in the AI client or your account security settings. See
[MCP server](https://q-bitf.com/docs/connect/mcp).

## Sign-in history

**Login history** lists recent sign-ins by platform, device and a partly
hidden network address. If you see one you don't recognise, regenerate your
key and end the session.