Concepts
How Trading Works

How Trading Works

Understand the core mechanics of P2P trading on Brtr.

The Basics

Brtr is a marketplace where you trade directly with other users. No liquidity pools, no algorithms — just you and another trader agreeing on a price.

Two ways to trade:

  • Sell — Create a listing with your tokens and wait for a buyer
  • Buy — Browse existing listings and purchase what you want

Order Lifecycle

Every trade follows a simple lifecycle:

State Explanations

StateWhat's Happening
OpenYour listing is live. Buyers can see and purchase it.
AwaitingConfirmationA cross-chain purchase started. Both chains are coordinating.
AwaitingFinalizationAlmost done. Final transfer in progress.
CompletedTrade finished. Both parties received their tokens.
CancelledYou cancelled the listing. Tokens returned.

Same-Chain vs Cross-Chain

Same-Chain Trades

When buyer and seller are on the same blockchain:

  • Speed: Instant (single transaction)
  • Cost: Just gas fees
  • Process: Atomic swap — both transfers happen together

Cross-Chain Trades

When buyer and seller are on different blockchains:

  • Speed: 2-5 minutes
  • Cost: Gas fees + LayerZero messaging fees
  • Process: 3 coordinated messages between chains

Cross-chain trades use LayerZero for secure message passing. See Cross-Chain Trades for details.

How Tokens Are Protected

Your tokens are always safe:

Seller Creates Listing

Your tokens are transferred to the smart contract. They're locked safely until either:

  • Someone buys them
  • You cancel the listing

Buyer Purchases

Buyer's payment goes to the smart contract. For cross-chain trades, both sides are locked until the trade completes.

Trade Settles

Smart contract releases:

  • Your tokens to the buyer
  • Buyer's payment to you
  • Fees to the protocol

Key Concepts

No Partial Fills

Each listing is filled completely or not at all. If you're selling 1,000 USDC, a buyer takes all 1,000 or none.

Multiple Payment Options

As a seller, you can accept up to 10 different payment options. For example:

  • 1,000 USDC on OP Sepo, OR
  • 0.5 ETH on Base Sepo, OR
  • 1,000 DAI on Monad Testnet

Buyers pick whichever works for them.

Cancellation is Free

Changed your mind? Cancel anytime (while still Open) and get 100% of your tokens back. No fees.

What's Next?