0-Gas Arb: What It Is and Why It Matters in Crypto Trading

When you trade crypto, you pay 0-Gas Arb, a strategy that eliminates or reduces blockchain transaction fees to zero. Also known as zero-gas arbitrage, it’s not magic—it’s clever engineering that lets users swap, stake, or farm without paying gas. This matters because high fees have killed countless small traders, especially on Ethereum. Now, chains like Arbitrum, zkSync, and World Chain are making 0-Gas Arb possible, turning everyday trades from expensive headaches into free actions.

Behind every 0-Gas Arb is a gas fee arbitrage, the practice of exploiting fee differences between networks or layers to save or earn money. Think of it like buying coffee cheaper in one city and selling it at full price in another—but here, you’re moving transactions between blockchains to avoid paying for them. Projects like Biconomy and LayerZero help users pay gas in stablecoins or get reimbursed by protocols, while others like World Chain bundle fees into the platform itself. This isn’t just about saving $2 on a swap—it’s about making DeFi usable for people who can’t afford to lose money on fees.

But not everything labeled "0-Gas" is real. Some scams promise free trades while stealing your keys. You’ll see fake airdrops tied to 0-Gas Arb, like those pretending to reward users for joining a "zero-fee" exchange that doesn’t exist. Others clone legitimate tools like Uniswap v3 on World Chain, then trick you into approving malicious contracts. That’s why the posts below focus on real cases—like how Hydra’s low fees make staking viable, or why JPEX and GoodExchange were traps disguised as low-cost platforms. You’ll also find breakdowns of actual 0-Gas Arb projects, how they work under the hood, and what red flags to watch for.

What you’ll find here isn’t theory. It’s real stories: traders who avoided rug pulls by understanding gas structures, users who claimed ANTEX or APENFT tokens because they knew how feeless systems attract real activity, and others who lost everything because they trusted a "no gas" promise with no code behind it. Whether you’re new to DeFi or have been trading for years, 0-Gas Arb changes the game—and knowing how it works could save you more than just money.