What strk20.run is
Everything on Starknet, from one private account. No wallet, no seed phrase — and a straight answer about what that does and does not hide.
Open the app and you have an account. There is no wallet to connect, nothing to install and nothing to paste. The key is generated in your browser on first load, and everything runs from it: hold and send shielded value, mail a payment with a sealed note to anyone who has registered, chat without a chain write, earn through Vesu, swap, bridge out, bet, launch.
The app needs no installation. If you prefer a Home Screen icon and standalone window, the optional phone guide shows the Safari and Chrome steps. That shortcut is not an account backup and does not add offline support.
The part that is actually different
It is not the privacy claim. Every product in this category claims privacy.
It is that each screen names which parties can see what, before you act — including the parties you did not choose. There are four of them, they are listed on who sees what, and one of them is an auditor who holds a copy of your viewing key forever.
A privacy tool that overstates what it hides is worse than none at all, because its users act on the difference. That sentence is the reason this documentation exists in the shape it does.
What you can do with it today
Where to go next
- Quickstart — from opening the page to your first shielded send.
- Create your account — the annotated first-run flow.
- Protect and restore with Passkey — setup, sync state, local unlock and the conditional fresh-browser path.
- Fund, shield and send — the two balances and the transfer path.
- Send mail — find a recipient, write, and send a payment that carries the note.
- Use Chat — send a gas-free relayed message or attach a separate payment.
- Earn yield — compare Vesu markets, supply shielded USDC, and redeem shares.
- Use Markets — choose a window, side and stake without skipping review.
- Use Launch — inspect a sale, define an epoch curve, buy units and recover the outcome.
- Pitch — the product story in six short frames.
- Demo — the recorded three-minute walkthrough.
- Install on a phone — the optional Safari and Chrome Home Screen path.
- Who sees what — the four parties, and what each one learns.
- Refused claims — the ten sentences this product will not say about itself, and why each one is false here.
- Evidence — every contract and transaction, on mainnet, checkable.
What this is built on
The STRK20 pool is StarkWare's, not ours — a deployed privacy pool on Starknet mainnet. strk20.run is an account, nine surfaces and a relayer built on top of it. The distinction matters when you are deciding whom to trust: the cryptography is theirs and audited, the product around it is ours and is not.