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DEX Aggregator 1inch Expands to Linea, Using Zk-Rollups for Trading

1inch broadens its trading toolkit on Linea by leveraging zk-rollups to trim fees and quicken swaps. This move reshapes liquidity access and refines the swap experience.

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Tanzeel Akhtar

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Feb 2018

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Tanzeel Akhtar has been reporting on cryptocurrency and blockchain technology since 2015. Her work has appeared in leading publications including The Wall Street Journal, Bloomberg, CoinDesk, Bitcoin...

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Last updated:

March 13, 2025

Key Takeaways:

1inch now operates on a Layer‑2 network that processes transactions off-chain with zero‑knowledge proofs.
The upgrade lowers transaction costs while quickening trade execution.
Expanded swap modes and liquidity sources offer users more flexibility.

1inch, a decentralized exchange (DEX) aggregator, has extended its services to Linea, a zkEVM Layer-2 network developed by Consensys.

This move is expected to lower trading costs and increase efficiency through zero-knowledge (zk) rollup technology.

🎉 @1inch Fusion and Fusion+ swaps are now LIVE on Linea! This integration brings deeper liquidity & optimized routing, meaning better prices & lower costs for your trades. Let's dive in👇 pic.twitter.com/dPbx2m8V1S
— Linea.eth (@LineaBuild) March 13, 2025

In a press release shared with Cryptonews, the integration with Linea will improve trading efficiency by using zk-rollup technology to reduce gas fees and accelerate transaction speeds.

⚡More liquidity, faster execution, lower costs.
That’s right–we’ve added yet another chain to your favorite cross-chain marketplace.

Welcome to 1inch, @Lineabuild

👀 https://t.co/OVV3OQ6vVv pic.twitter.com/6F8VqfwvAH
— 1inch (@1inch) March 13, 2025

The connection provides traders access to deep liquidity on Linea while lowering transaction costs and improving processing times compared to Ethereum’s mainnet.

How Zk-Rollups Reduce Gas Fees

Linea’s zk-rollups help lower transaction costs and improve trade execution by sourcing liquidity from native DEXs on the network.

By utilizing liquidity from native DEXs on Linea, 1inch offers improved swap rates and additional trading tools for users.

The integration extends support for 1inch’s trading tools, including Simple, Advanced, and Limit Order modes.

Simple Mode includes Fusion and Fusion+ swaps, which allow gas-free transactions while reducing front-running (MEV) risks.

For more experienced traders, Advanced Mode aggregates prices from multiple DEXs to provide competitive exchange rates, while Limit Orders enable users to execute trades at specific prices, offering greater control and gas efficiency.

These tools allow traders on 1inch to execute swaps effectively while benefiting from Linea’s lower costs and faster transaction speeds.

Several decentralized exchanges are already accessible through 1inch on Linea, including SushiSwap v3, PancakeSwap v3, Woofi v2, SyncSwap, Nile, Secta, Sparta DEX, EchoDex, and Lynex.

This integration expands liquidity pools and provides traders with more options for competitive pricing.

According to Sergej Kunz, co-founder of 1inch, zk-rollup technology enhances transaction speed, improves liquidity access, and boosts DeFi efficiency.

Understanding Linea: A zkEVM Layer-2 Network

Linea launched on July 11, 2023, and has rapidly grown into one of the leading zkEVM Layer‑2 networks. It currently supports close to 300 decentralized applications, has a Total Value Locked (TVS) of over $360 million, and has processed more than 240 million transactions.

Focusing on scalability, security, and decentralization, Linea said it is positioning itself as a key player in the Ethereum ecosystem.

By integrating with Linea, 1inch said it continues to push the boundaries of decentralized finance.

Frequently Asked Questions (FAQs)

What makes zk‑rollups beneficial for 1inch trading on Linea?

zk‑rollups aggregate numerous off‑chain transactions into a single proof verified on‑chain, which minimizes data storage, cuts processing time, and lowers fees. This streamlining enhances trade speed and reliability.

What challenges might arise from integrating zk‑rollups on a Layer‑2 network like Linea?

Layer‑2 integration with zk‑rollups can present technical hurdles and early centralization risks. Balancing efficiency with security demands extensive testing and gradual decentralization to maintain network resilience.

How might this integration shape the broader DeFi ecosystem and user experience?

By partnering with Linea, 1inch unlocks broader liquidity channels and a range of swap modes. The streamlined process may boost user activity and encourage deeper participation in decentralized finance.