FloorFeed

Guides › Trading

Swap & continue: pay in any token you hold

Short of the token a listing or offer asks for (USDC.e, WETH, USDG…)? Swap what you hold on any network into exactly that token, then carry on and buy.

What it is

Some listings and offers are priced in a token, not a network's own coin: Courtyard's cards on Polygon are listed in USDC.e (bridged USDC), offers are made in WETH, and Robinhood Chain uses USDG. If you don't have enough of it, Swap & continue gets it for you without leaving FloorFeed.

It swaps what you already hold, on any network, into exactly the token and amount the purchase needs, then hands you back to the Buy button. You sign every step in your own wallet; FloorFeed never holds your money and adds no fee of its own.

Where to find it

In the buy sheet (Buy, Buy floor and sweeps) when the listing is priced in a token you're short of: the sheet says how much more you need, with Swap & continue under it.

In the offer sheet when you're short of the offer's token and there's no coin to wrap.

Step by step

  1. Press Swap & continue

    Open Buy floor (or Buy, or a sweep) on a listing priced in a token. Short of it, the sheet says how much more you need. Press Swap & continue.

    The buy sheet for a USDC.e listing, short of USDC.e, with Swap & continue outlined
  2. Check the quote

    FloorFeed picks the best source for you: the same network's own coin first when it covers it, otherwise what you hold on another network. The quote shows You pay, exactly, You get on the purchase's network, Relay's fee, FloorFeed's fee (none), the network fee and how long it takes.

    The Swap & continue sheet with the quote: you pay ETH on Base, you get USDC.e on Polygon
  3. Pay with something else (optional)

    To pay from another token or network, press Pay with something else and pick it from the list. Each row shows your balance; one marked may not cover it is too small.

    The list of sources: ETH on Base and POL on Polygon
  4. Swap, then continue

    Press Swap … for … and sign in your wallet (a token from another network asks for an exact approval first). When it has arrived, press Continue to buy: the sheet re-reads your balance and the Buy button is back.

    The token arrived, with Continue to buy

Options

Pay with something else
Any coin or token FloorFeed can price that Relay takes directly, on any network: ETH, USDC, USDT, SOL and the like, plus the purchase network's own coin (POL on Polygon).
0.5% extra
The amount is what you're short plus 0.5%, so a price re-read before you sign the purchase never leaves you a cent short. Anything left over stays in your wallet.
Take the approval back
If you approved a token and then didn't pay, the sheet offers to set the approval back to zero.

Fees and limits

All networks
No FloorFeed fee. Relay's fee is inside You pay, exactly, and the network fee on the network you pay from is shown separately. A route whose fee is out of proportion to the amount isn't offered.
Same network
Only the network's own coin can be swapped there (POL on Polygon, ETH on Base): a token on the same network would need an approval to a contract FloorFeed doesn't allow.
  • The token must be one Relay routes on that network (USDC, USDC.e, USDT, WETH and most dollar coins are). If it isn't, the sheet says so and offers the listing on OpenSea.
  • Wrapped coins, POL, RON and memecoins on another network can't pay, because what Relay does with them on the way can't be checked in advance.
  • A network whose node can't dry-run the swap isn't offered for a same-network swap: pay from another network instead.
  • Ethereum-style networks only; on Solana, Buy pays in SOL.

Troubleshooting

It says nothing in my wallet can be swapped.
Nothing you hold has a price FloorFeed can check, or enough value. Add funds on any network and try again, or buy the listing on OpenSea from the link.
The total went up when I pressed Swap.
Prices moved since you looked. Nothing was sent: check the new total and press again.
It says Still working.
Your payment went through and Relay hasn't finished. It either arrives or Relay refunds you, even if you leave the page.
Why USDC.e and not USDC?
Courtyard's listings ask for USDC.e, bridged USDC, which is a different token on Polygon from Polygon's own USDC. Swap & continue brings the one the listing names, by its address.

Questions

Does FloorFeed hold my money?
No. You sign each step in your own wallet. Between your payment and the arrival, a cross-network payment sits with Relay for a few seconds; a same-network swap is one transaction.
How does FloorFeed know the route is safe?
From another network, it checks Relay's order pays your wallet at least the amount of exactly that token and that your deposit pays that very order. On the same network, a dry run as your wallet must show the token arriving and nothing else leaving. A route that fails a check is never shown.
Are approvals unlimited?
No. Approvals here are for the exact amount, and only to Relay's deposit contract.

Related

Checked against FloorFeed on 2026-11-13.