Gas-Free Cross-Chain Swap Arrives: A New Approach with Deep Integration of Wallet + DEX Aggregation

ForkMonger · 2026-01-22T13:00:11+00:00

Recently, a Swap API integrated with DEX aggregators has emerged, providing a gas-free exchange solution across multiple popular public chains. Users can pay network fees with tokens without needing to pre-deposit native gas tokens, greatly enhancing the multi-chain operation experience. This technology is based on EIP-7702, optimizing the interaction between wallets and chains, and offering DeFi users a more convenient operation experience.

ForkMonger

2026-01-22 13:00:11

Abstract generation in progress

【Crypto World】Tired of Gas fees and complicated chain switching? Recently, I came across a pretty good solution—by integrating a DEX aggregator’s Swap API, users can directly swap on popular chains like Ethereum, BNB Chain, Base, Arbitrum, and Optimism. The key point is that it completely eliminates Gas fees.

How does it work? During transactions, the network fee is paid with tokens, and there’s no need to pre-fund native Gas tokens in the wallet—this significantly improves the experience for users who operate across multiple chains. The underlying technology uses EIP-7702, a relatively new solution that introduces a new way for wallets and chains to interact.

From a product perspective, this approach is quite interesting: it optimizes liquidity aggregation, maintains user self-custody and optimal routing, and then removes various cross-chain barriers—making DeFi truly more accessible for ordinary users. If this model proves successful, more projects might explore this direction in the future.

ETH-0,63%

BNB-1,21%

ARB-3,25%

OP-3,64%

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