# USRKey - Your Key to Every AI > Tell an AI who you are, once. Every app, assistant, and agent picks up from there, knowing only what you chose to share. You own it, you control it, you can walk away with it. USRKey is a consumer product for everyone, not just developers. Simple, beautiful, yours. ## What It Does You fill in a simple profile once: your name, how you like to work, what matters to you, what you're trying to do. USRKey packages that into a portable key you control. Every AI tool you use picks up from there instead of starting from scratch. No more re-explaining yourself to every new chatbot. No more typing your preferences into custom instructions boxes. One key, every AI. ## Three Ways to Use Your Key 1. **Browser Extension** (easiest): Install the USRKey Chrome extension. One click on any AI site attaches your context automatically. You'll see a visible pill confirming it's attached. Works on ChatGPT, Claude, Gemini, Perplexity, and any AI chat site. 2. **Paste**: Copy your key, drop it into any AI's custom-instructions or system-prompt box. Works everywhere, today, with zero setup. 3. **MCP Connector** (for developers): For MCP-aware tools (Claude Desktop, Cursor, Cline), the USRKey connector pulls your context automatically. See usrkey.dev for setup. ## Make Your Key Visit https://usrkey.com and complete the 60-second AI-led onboarding. Your key is generated locally in your browser. No account required. ## Browser Extension The Chrome extension is the fastest way to use USRKey: - Works on any AI chat site - Shows a visible pill when your context is attached - One-click toggle: attach or detach per site - Your key never leaves your browser - Install from usrkey.com/extension ## Privacy - Your key belongs to you, not us - You choose what to share and with whom - Nothing is sent to our servers - You can delete your key and walk away at any time - See usrkey.org for our trust commitment ## Three Domains - **usrkey.com** (this site): The product. Make a key in 60 seconds. - **usrkey.dev**: The format spec and connector for developers. - **usrkey.org**: The trust constitution. Why this is neutral and open. ## Links - Make your key: https://usrkey.com - Install extension: https://usrkey.com/extension - Developer docs: https://usrkey.dev - Trust commitment: https://usrkey.org - USRCP (related protocol): https://usrcp.org