What a swap costs

The pool fee

Every venue a route touches charges its own fee, paid to the liquidity providers standing behind that pool. A split route pays each leg's fee in proportion to what went through it.

This is already inside the quoted output. The number on the receive side is what the route will hand over, and the venues it passed through are listed next to it before you sign.

Network cost

Solana charges a base fee per signature plus whatever priority fee the transaction attaches to get included. Both are paid in SOL and both are fractions of a cent in normal conditions.

A first trade in a given equity also has to create a token account for it, which carries a small one-time rent deposit. That deposit is recoverable when the account is closed — it is held, not spent.

Slippage

The tolerance set in the ticket is a floor, not a charge. It is the worst output the transaction will accept before it reverts rather than filling badly, and the terminal shows that floor as the minimum received.

Thin markets move against size. Price impact is quoted separately from slippage so the two are not confused: impact is what the trade itself does to the price, tolerance is how much of it you are willing to wear.

Interface fee

There is none. No spread is added to the quote, no basis points are skimmed off the output, and no referral account is injected into the route. The transaction that gets signed is the one the router returned for the quote on screen.