I've been building this tool for myself for over a year and I figured it could help a lot of other people.
This can really help you keep track of all your wallets and create secure new ones for things like AI trading or just storing assets. You have to use it to feel the convenience.
Link: [https://capkey.com](https://capkey.com/)
I've optimized for the desktop experience - but it also works on mobile.
Current browser extension wallets and trackers suck in different ways but I'll just give you a few key features of Capkey.
Wallet Tracker:
\* See gain/loss for your positions
\* Ethereum, Solana, and Bitcoin supported
\* Privacy: we never save your wallet addresses in our servers
\* Add wallets just by wallet address or connect
\* Wallet historic graph (if you connect or create a wallet)
Wallet:
\* Guard-rails like daily limits and passkeys
\* Share wallet with an agent (Claude Code, Codex, etc.)
\* agent has access to MCP server for secure, accurate trading of spot and perps
\* export your keys at any time
\* no downloads, no extensions that spy on you
The infrastructure and data are a bit expensive so I plan to recoup costs via trading fees. The trading interface is super convenient and is what I now use 100% of the time to trade. The fees are less than half of any other wallet (Phantom, Metamask, Rabby, etc.) or cross-chain trading interface (Coinbase, Binance, Axiom, etc.) and the goal is to reduce them even further.
About me: I come from a hardcore software engineering background and have been professionally developing secure software systems used by tens of millions of people for over a decade (at the big tech companies). I have been lucky enough to take time off and build my own projects for some time now.
I hope this helps someone out there. More exciting features are coming very soon.
Feel free to drop feedback here!
