Scroll Swap

Scroll Swap is an AMM-based decentralized exchange on Scroll Mainnet, not an order-book exchange or a bridge. It grew out of Honeypop, which Scroll acquired and reorganized into this protocol. Its concentrated-liquidity pools let liquidity providers allocate capital to specific price ranges. A swap changes the asset you hold but not the network: you start on Scroll and you end on Scroll. Custody never leaves your wallet; assets move only through smart-contract transactions you personally authorize. Other Scroll DEXs run separate pools and routing, so a quote here reflects these pools, not the whole chain.

A swap reads the onchain pools, builds a route, and returns a quote with a price impact figure and a minimum output before you sign. If your input is an ERC-20 token, you first authorize the router to spend that amount; native ETH skips this step because it isn't an ERC-20. Scroll's documentation identifies a Universal Router for Honeypop, the protocol now organized as Scroll Swap, which is the contract that executes your route. When you sign, the router and pool calls execute atomically: the full swap completes and output lands in your wallet, or the transaction reverts if the conditions, such as your slippage limit, can't be met. Price impact measures how much your own trade moves the pool price and grows with trade size relative to pool depth; minimum received is the worst output you'll accept before the swap reverts.

Scroll Swap operates on Scroll Mainnet, EVM chain ID 534352, with ETH as the native gas currency, so you need a little ETH in the wallet for every transaction, including approvals. Fungible tokens generally follow the ERC-20 interface and allowance model. Token availability is a contract question, not a ticker question: a symbol showing in a token list means nothing unless there's a deployed contract and an active pool with real liquidity behind it. Before swapping anything unfamiliar, verify the token contract on Scrollscan rather than trusting a name or logo.

Your total cost has four components: Scroll network gas paid in ETH, the fee of the specific pool your route uses, price impact from your trade size against available liquidity, and any adverse slippage between quoting and execution. The displayed quote bundles most of them. Concentrated liquidity means the same pair can exist in pools with different fee tiers and different depth, so the route matters more than the pair name. Small trades in deep pools mostly feel the pool fee and gas; large trades in thin pools are dominated by price impact. Compare the quote by total execution cost, not by any single line item.

Scroll Swap removes centralized-exchange custody — your wallet signs and settlement happens onchain — but it does not remove risk. Smart-contract, malicious-token, liquidity, MEV, approval, frontend, and rollup-level risks all remain because security depends on the token contracts, the router and pool contracts, your wallet approvals, frontend integrity, Scroll's sequencer, and the rollup's upgrade controls. Open-source or audited code narrows some of these risks; it eliminates none of them. Before signing, verify the domain, confirm you're on chain ID 534352, check token contracts rather than tickers, read the quote and approval details, and review the responsibilities in Scroll's terms of service.

To swap, complete three actions:

• Connect a self-custody EVM wallet, switch it to Scroll Mainnet, and select the input and output tokens; paste contract addresses for anything obscure.
• Read the quote: route, pool fee, price impact, gas estimate, and minimum received.
• For an ERC-20 input, sign the approval so the router can spend the needed amount, then sign the swap transaction itself; the output arrives in your wallet, or the transaction reverts.

Failed swaps usually have one of five causes. Wrong network: the wallet is on another chain, so switch to Scroll Mainnet (534352). No gas: you need ETH on Scroll even to approve a token. Approval confusion: ERC-20 inputs need a router approval first, and a stuck or oversized old approval can be revoked and reset. High price impact: your trade is too large for the pool's liquidity, so shrink the size or split it. Reverted transaction: the quote moved past your slippage limit between signing and inclusion; refresh the quote and resubmit.