Introduction
Cloak is an MEV-protected swap aggregator for Solana, built around one idea: the price you see should be the price you get.
The problem
Solana has no public mempool. Your transaction is forwarded straight to the validators scheduled to produce the next blocks — and anyone in that path who sees it first can trade around it. The most common form is the sandwich: a bot buys just before your swap and sells just after, pushing your fill to the edge of your slippage tolerance. You never see a line item for it — just a worse price.
What Cloak does
- Compares quotes across Solana aggregators, starting with Jupiter, so the starting price is the best one available.
- Shields the swap: sends it through MEV-protected transaction paths, with tight slippage, avoiding validators publicly flagged for sandwiching.
- Proves it afterwards: checks the block your swap landed in and tells you whether anyone traded around it.
You pay a small protection fee only when the protected path was actually used — see Fee Policy.
Why Solana
On Solana, protected sending paths already exist, the leader schedule is public, and every sandwich is visible on-chain after the fact. That means Cloak can both deliver protection and show you whether it worked, instead of asking you to trust an estimate.
Quick reference
- How it works — Compare, Shield, Review, Sign
- Fee policy — when you pay, and when you don't
- $CLOAK — launching on pump.fun
- Roadmap — what ships when
Who this is for
Solana traders who want aggregated pricing and are willing to pay a small, conditional fee for a swap that is harder to sandwich — and proof of whether it was.