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Stability fix: resolved an issue that could cause the app to close unexpectedly on launch for some devices. Wallet connection is now loaded only when you choose to connect, so the app opens reliably.
See what you really paid, get a live quote, sign the sale in your own wallet.
KOINIsell is a self-custody, sell-only wallet — built for the moment you decide to sell. WATCH, WITHOUT CONNECTING Paste any public address on Ethereum or Base and see what it holds. Watch-only mode cannot move funds. KNOW WHAT YOU REALLY PAID When your purchase is visible — a swap in your own wallet history, or a fill from your read-only exchange data or CSV — KOINIsell uses that real fill and labels it high confidence. When it isn't, you get a clearly labeled estimate you can correct. A missing record shows as unknown, never as zero. SEE THE WHOLE SALE BEFORE YOU SIGN A live quote to USDC with everything named: proceeds, price impact, the KOINIsell fee (0.20%), the route's protocol fee, the network fee, and your net proceeds. Estimated gain or loss appears only when your cost is actually known. SIGN IN YOUR OWN WALLET Connect with WalletConnect and approve the sale in the wallet you already trust. KOINIsell builds only sells — no buy button, no blank-check approvals, no arbitrary contract calls. There is no seed screen and no key import; KOINIsell never holds your keys. A CONFIRMED SALE IS FINAL Before you sign, a quote can be discarded freely. After your wallet confirms the transaction on-chain, it cannot be reversed by KOINIsell or anyone else. KOINIsell is informational — not tax advice and not a recommendation to sell.