HostDeFi › Features › Wallet Tracker

Wallet tracker: watch the wallet, copy the trade

Follow any Solana wallet and its swaps land in a live feed — every entry carrying a one-tap copy, so the distance between seeing a smart buy and taking it is a single tap.

Feature · /track in the HostDeFi app · written September 2026

The tracker is the follow page: paste any Solana wallet, give it a name, and its swaps start landing in a live activity feed as the server's watcher polls the wallet's signatures on-chain. Followed wallets live in your browser's localStorage — there's nothing to sign up for and no wallet to connect just to watch. The list is yours in the most literal sense: it never leaves the device, and clearing your browser data is the only "delete account" the feature has.

How the feed stays live

The pipeline is two hops. On the server, a watcher polls the on-chain signature history of every followed wallet on the existing read lane — no webhooks, no third-party keys — so a swap reaches the feed as it's confirmed, not in a daily batch. The page itself polls that feed every six seconds and renders the newest thirty trades: each row shows the buy or sell side, the token, the wallet tag you assigned, and the size in SOL. Fifteen wallets is the follow cap — the limit is what keeps the signature polling fast enough that "live" stays honest.

From watching to copying in one tap

Every swap in the feed carries a copy action: tap a buy the wallet just made and a sheet preloads the same trade — buy presets run 0.05 to 1 SOL, sell presets 25%, 50% or all of the position. One detail separates this from a naive copy button: the affordability gate reserves roughly 0.004 SOL beyond the trade itself — priority fee, the 5,000-lamport base fee, and the token-account rent a first-time hold costs — so a balance that only looks sufficient routes you to a deposit prompt instead of dying on-chain.

The same burner the rest of the app uses

Copies sign through the device-local burner — the identical encrypted vault the Trenches and Ape pages create, right down to the database and record keys. One deterministic signature derives it ("derive my trading wallet" — free, and it never moves funds by itself), the key material sits AES-wrapped in IndexedDB, and whichever page created the burner first, the tracker uses it. Your follows stay in localStorage; your trading key never leaves the vault.

Routing, and what a copy actually costs

Execution rides the same rails as the terminal: Jupiter first on graduated tokens, the pump.fun bonding curve itself for mints still on it, broadcast through the trade RPC with an Alchemy-primary, Ankr-fallback chain. The fee is the flat 1% on top — your points tier can move the effective rate — split 50/50 with a referrer when one exists. Nothing about the copy is hidden: the sheet shows the route and the cost before you sign, not after.

What the feed is good for — and what it isn't

The watch list is the vetting tool: follow a wallet for days and you see the real behavior — how often it exits at a loss, whether its wins are launch-speed entries you could never replicate, whether it quietly deploys the tokens it pumps. That last pattern is the one that matters most: a "trader" whose wins come from wallets it controls is distributing, and its followers are the liquidity. The smart money page automates the discovery side of this; the tracker is where you verify before you mirror.

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