Solana Bundle Checker

On Solana, a block lasts about four hundred milliseconds. Using a Jito bundle, a launcher can place a token creation and a set of buy transactions into that same block, so the buys land before anyone outside has seen the token exist. This is what people mean when they call a launch bundled.

From the outside it looks like immediate organic demand. In reality one person may hold a large part of the supply at the lowest price the token will ever trade at. Nothing on a price chart distinguishes the two cases, which is why the creation block has to be read directly.

Bundling itself is not inherently dishonest. Teams also use it to keep snipers from taking the entire opening supply. The question that matters to a buyer is how much is concentrated and what those wallets do next.

The tool starts by finding when the token first became tradable, then narrows down to the exact slot through a binary search over block timestamps. This matters because popular tokens accumulate hundreds of thousands of transactions, and walking backwards through that history is not practical.

With the slot identified, it pulls the entire block and inspects every transaction in it. For each one it compares token balances before and after execution, so any wallet whose balance increased is recorded as a buyer, no matter which program routed the trade. Bonding curve and pool accounts are excluded, since those receive supply by design rather than by buying it.

Finally it reads the current balance of each wallet. Comparing that against the original purchase shows what proportion has already been sold, which is usually more informative than the opening percentage on its own.

Wallets in block 0 is how many distinct addresses bought before the token was publicly visible. One or two is unremarkable. A dozen acting together is a deliberate operation.

Supply taken is the share of total supply those wallets received. This is the number that determines how much of the price is under one party's control.

Already exited counts wallets that have sold essentially their whole position. If most of the block-0 buyers are gone, the supply they held has already been distributed into the market, and whoever bought it did so at a higher price.

A verdict of bundled means several wallets took a substantial share in the creation block. Possible bundle means the pattern is present but smaller. No bundle detected means block-0 buying was limited to what a normal launch produces.

It is common to check one token in two places and get two very different percentages. The disagreement almost always comes from scope rather than from a mistake in arithmetic.

Some tools examine only the transaction that created the token. On several launchpads part of the bundle settles in separate transactions within the same block, and those are missed entirely. Others count every account whose balance went up, including the bonding curve, which holds nearly the whole supply and produces a figure above one hundred percent.

Reading the complete block and filtering out program-owned accounts avoids both problems. When a result here differs from another tool, the wallet table above shows exactly which addresses are included, so the difference can be checked on Solscan directly.