01
Bot fees
The cut your bot takes
Axiom, Photon, BullX, Trojan, GMGN, Padre and dozens more charge around 1% of every buy and sell.
SOL sent to the bot's fee wallet−3.12 SOLLive on Solana mainnet
Every trade leaks a little.
See where it goes. LEAK follows every lamport your wallet paid outside its trades: bot fees, priority fees, Jito tips, failed transactions and sandwich attacks.
No wallet handy?
- Read-only
- No wallet connect
- Every line on Solscan
44bots recognized
124fee wallets mapped
8Jito tip accounts tracked
0signatures, ever
- Transaction listWaiting
- Reading transactionsWaiting
- Sandwich checkWaiting
Daily costs by type
SOL paid outside the trades themselves, per UTC day
Where it went
Share of total cost in the period
Unit costs
What a single trade or transaction costs on average
Cost by trading platform
Fees each bot or terminal took from your swaps
Swaps by venue
Where the trades executed
Costliest transactions
Top 8 by fees, tips and bot fee in the period
Sandwich attacks
A wallet bought right before your swap and sold the same amount right after, in the same block
Recognizes fees from
// what LEAK finds
Five costs your PnL tracker never shows.
Trackers compare what you bought with what you sold. Everything skimmed in between gets its own line in a LEAK report.
02
Priority & network
What you paid to get processed
The base fee plus the priority fee you or your bot set on every transaction.
Fee field of each transaction−0.48 SOL03
Jito tips
Paying validators to land first
Extra SOL sent so a bundle lands ahead of everyone else. Small each time, large in total.
Transfers to Jito tip accounts−0.64 SOL04
Failed transactions
Trades that never happened
Bots send the same trade through several relays at once. The copies fail, and every one pays its fee.
Fees of reverted transactions−0.35 SOL05
Sandwich attacks
Bots trading around you
A wallet buys right before your swap and sells right after, pocketing the price move you caused.
Same-block front-run and back-run−0.23 SOLExample wallet, 30 days4.82 SOL leaked
Bot fees 3.12Priority & network 0.48Jito tips 0.64Failed transactions 0.35Sandwich attacks 0.23
// roadmap
Filling up, one leak at a time.
What LEAK measures today and what comes next. The level rises as each piece ships.
- Shipped
Five costs, audited
Bot fees for 44 bots, priority fees, Jito tips, failed transactions and same-block sandwiches.
- Shipped
API and holder plans
One-call audit API, 365 days of history, CSV export and a watchlist for $LEAK holders.
- Building
Sandwich alerts
A Telegram message for holders the moment a watched wallet gets sandwiched.
- Planned
Slippage
What each fill cost against the pool price at that moment.
- Planned
Exit value and risk flags
What your bags would really sell for, and which tokens can freeze or mint against you.
// how it works
From address to report in three steps.
- 01
Paste any wallet
Yours, a fund's, or the KOL you copy. There is nothing to connect and nothing to sign.
- 02
LEAK reads every transaction
Each transaction the wallet paid for is split into the trade itself and what it cost on top.
- 03
Get the report
Costs by type and by day, the costliest transactions, sandwich checks, and a card to share on X.
// methodology
How each number is measured.
Every figure comes from public Solana data. Fees and tips are recorded exactly on chain. Sandwich losses have to be reconstructed from the block around your swap, so they are estimates.
| Metric | How LEAK measures it | Status |
|---|---|---|
| Bot fees | SOL and WSOL transfers from your wallet to the known fee wallets of 40+ trading bots and terminals (Axiom, Photon, BullX, Trojan, GMGN, Padre, BonkBot and more), inside your swap transactions. Wallet lists come from Dune spellbook and DefiLlama. | Exact |
| Priority & network fees | The fee field of each successful transaction: 5,000 lamports per signature plus the priority fee you set. | Exact |
| Jito tips | Transfers from your wallet to Jito's eight tip accounts. | Exact |
| Failed transactions | Fees paid by transactions that failed. Their transfers and tips were reverted, so only the fee counts. | Exact |
| Sandwich attacks | For your largest swaps, LEAK reads the block and looks for a wallet that signed a trade in the same token before yours and sold the same amount after it, ending with a net SOL gain. Its gain is your estimated loss. Sandwiches spread over several blocks are not detected yet. | Estimate |
| Volume | SOL that moved for each swap, after fees, tips, bot fees and token-account rent are taken out. Token-to-token swaps without SOL are not counted. | Exact |
| Slippage, exit value, risk flags | Planned. They need pool state at the moment of each trade and live sell quotes. | Not yet |
// questions
Before you run an audit.
Do I need to connect a wallet?
No. LEAK only reads public transactions for the address you enter. Audits never ask for a signature, so there is nothing to approve. Only the optional $LEAK holder check on the plans page asks you to sign a message, and that moves no funds.
How do you know what a bot charged?
Trading bots take their fee as a transfer to their own fee wallets inside your swap. LEAK matches those transfers against a list of known fee wallets for each bot, collected from Dune and DefiLlama.
Why do so many of my transactions fail?
Many bots send the same trade several times through different relays so one lands fast. The copies fail, and each one still pays its fee.
How accurate is the sandwich check?
It looks for a wallet that bought right before your swap and sold the same amount right after, in the same block, and only counts it when that wallet ended up with a gain. Sandwiches spread over several blocks are not detected yet.
Why did it only read part of my history?
Very active wallets can have tens of thousands of transactions. LEAK reads the most recent ones up to a limit and says so in the report.
Can I check someone else’s wallet?
Yes. Every Solana wallet is public, so you can audit any address, including the traders you copy.
Find out what your wallet leaks.
Free, read-only, about a minute for an active wallet.