Sniper Sonar
Siesta's launch scanner. It listens to every new pump.fun coin, runs nine checks on each one in its first seconds of trading, and shows you exactly why a coin passed or failed.
How it works
- Live feed. Sonar streams every pump.fun launch and every trade on its bonding curve as it happens.
- Nine checks in parallel, in about 20 seconds. Each new coin is watched for a short window (20s by default, or a faster 8s path when early buying is very strong), then checked against the rules below. Every check reports its value, its threshold and pass or fail.
- Scoring. Hard rules must pass; soft warning flags add risk; buying momentum adds confidence. The result is buy, hold or skip.
- Paper auto-buy. On a buy, your paper account takes a simulated position at the live price, with fees and slippage modelled.
- Exit rules. Positions close automatically: take profit at +50%, stop loss at −25%, and a time stop after 5 minutes. In your own account you set your own size and exits.
- Recorded and backtested. Launches and trades are recorded, so the same rules can be replayed on past data to see how a rule change would have behaved.
The nine checks
- Unique buyersEnough different wallets are buying, not a handful of accounts.
- BundlesHow much supply other wallets grabbed in the launch block itself.
- Sniper shareHow much the early snipers (blocks 0 to 3) still hold, ready to dump.
- Dev rug historyWhether the creator dumped their earlier coins, and how many they launched today.
- Dev holding / sellingThe creator's share of supply, and whether they've already sold their buy.
- Wash volumeShare of volume from wallets that bought and sold the same coin.
- Fresh walletsShare of top buyers that are brand-new wallets (on-chain lookup).
- Common funderTop buyers funded by one wallet: one person behind many "buyers".
- Top-10 concentrationHow much of the supply the 10 largest holders own.
Plus basic safety rules: standard curve, still on the curve, minimum trades and SOL, mint and freeze authority, and "already pumped". Checks without enough data show as n/a.
Why use it
- Practise on paper first. Same rules, same live prices, simulated money. Switch to live only when you're comfortable.
- Nothing hidden. Every coin page has a Checks tab listing each rule with its value, threshold, pass/fail and the reason.
- Deeper than dev % and top-10. Bundles, snipers, wash volume, fresh wallets, common funders and the creator's history are checked too.
- Non-custodial. Siesta never holds your keys. In live mode, every trade is built for you and approved by you in your own Phantom.
- Copy top Fomo traders on paper first. Mirror a trader's buys and sells in your paper account before risking anything.
- Rules tested on recorded launches. See the replay numbers below, with the sample size.
Replay on recorded launches
⚠ Risk
Meme coins are extremely risky and most go to zero, often within minutes. No check or score can catch every rug, honeypot or manipulation, and a coin that passes every check can still lose everything. Paper trading and backtests use recorded data and simplified fills. They don't predict real results, and live fills can be worse because of slippage, failed transactions, MEV and latency. Nothing here is financial advice or a recommendation to buy anything. Only trade what you can afford to lose. Full risk disclosure.