Every launch needs a floor.

Coins launch with a crowd on top and nothing underneath. Underpin quotes a put on any Solana coin, so you can see what a floor costs before you need one.

The coin is the building.

Spot is the coin in its own pool, at whatever price the last buyer agreed to. Underpin reads that price at a known moment and leaves the swap alone.

Buy the right to dump.

Pay premium p for q tokens at strike K. Until expiry you can sell them at K, even after the chart has moved to the basement.

No pile, no put.

A put is only as good as the money under it. Every quote shows the q × K in USDC that has to sit in the ground, one pile for each of the eight strikes.

The premium is the whole bill.

A bought put can cost you the premium and the service fee. Nothing else can be taken from you, whatever the coin gets up to upstairs.

A floor from the first trade.

Pick a coin, choose a strike and an expiry, read the premium and the breakeven, then pin it to your paper book.