USRThe key to
every AI.
And it's yours.
Write who you are once. ChatGPT, Claude, Gemini — they all just get you, from the first message. No account, nothing leaves your browser, and you own every bit of it.
Every new AI
meets a stranger.
You explain who you are to ChatGPT. Then again to Claude. Then to the next tool, and the next. Each one starts from zero, and none of it is portable — it's locked inside their walls, not yours.
Tell it once. They all get it.
Three steps, about sixty seconds. No account, no sign-up — your key is saved in your own browser and nowhere else.
Write your key
Four quick questions at usrkey.com — who you are, how you work, what you're focused on. Saved in your browser, not on a server.
Attach it anywhere
The extension puts a USRKey button on ChatGPT, Claude, Gemini and more — one click drops in your context. No extension? Paste it into any AI's custom-instructions box.
Every AI just gets you
It stops asking who you are and starts where you left off. Change focus or tools — edit the key once, and everything downstream follows.
Make as many keys
as you want.
A key is one context you control. Keep work and life apart — a personal key, a professional key, one tuned for your AI tools. You decide what goes in each, and what you connect it to.
The everyday you
Your voice, your interests, how you like answers. The key you bring to the assistant you use after hours.
- who you are
- how you like to work
- what you're into
The you at work
Role, stack, current projects — the context that makes work AI useful without re-briefing it every morning.
- role & goals
- tools & stack
- what you're shipping
Tuned for tools
A key written for coding agents and MCP-aware apps, so Claude Desktop, Cursor and Cline pick you up on the first message.
- plain-file format
- works over MCP
- read-only, local
There's no server
on the other end.
USRKey isn't a service that holds your data — it's a file you own. That's not a promise to keep, it's how it's built. We couldn't read your key if we wanted to, because it never reaches us.
No sign-up, no email, no password. Nothing to breach, because there's nothing to collect.
Your key lives in your own browser storage. It's never uploaded, synced, or copied to us.
No analytics beacon, no cookies, no third-party scripts. Nothing runs in your browser to measure you.
Back it up as plain files in one step and walk away anytime. Open format, no lock-in.
Their memory. Or your key.
ChatGPT and Claude each remember you — but only inside their own walls, on their terms. A USRKey is the same context, everywhere, owned by you.
built-in memory
- Locked to one assistant — start over on every other tool
- Lives on their servers, under their policy
- You can't open it, move it, or hand it to a new app
- Turned on and shaped by them, not you
USRKey
- Works across every AI — one key, all of them
- Lives in your browser; nothing sent to us
- Plain files you can read, edit, back up, and delete
- You write it, you connect it, you own it
Your key is
sixty seconds away.
Write it once. Carry it to every AI you use. Own it forever.
Create your key →