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1inch Review (2026)

The original DEX aggregator — best-price routing across 300+ liquidity sources

4.6(1,243)
DEX AggregatorsFree plan

Last updated: July 2026

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What is 1inch?

1inch is the largest and most widely used DEX aggregator in the Ethereum ecosystem, splitting your swap across multiple decentralized exchanges — Uniswap, Curve, Balancer, SushiSwap, and 290+ others — to find the best effective price after factoring in gas costs and slippage. Its Pathfinder algorithm is the most sophisticated routing engine in the category, capable of splitting a single trade across multiple pools and routes when that produces a better net price than any single venue. 1inch operates on Ethereum, Arbitrum, Optimism, Base, Polygon, BNB Chain, Avalanche, Gnosis Chain, and Fantom. Beyond basic aggregation, 1inch offers Fusion Mode — a gasless swap mechanism using Dutch auctions where professional market makers (Resolvers) compete to fill your order, allowing users to swap without paying gas fees and with MEV protection built in. The 1inch Limit Order Protocol lets you place limit and stop orders on any DEX that supports the protocol. The 1inch Wallet (formerly Chi Gastoken) is a mobile-first wallet with the aggregator built in. The 1INCH governance token accrues value from swap fees and gives holders voting rights over protocol parameters.

1inch Pros & Cons

Pros

  • ✓ Pathfinder routing engine produces best net price across 300+ liquidity sources
  • ✓ Fusion Mode gasless swaps with MEV protection — no gas needed
  • ✓ Limit order protocol works across all supported DEXes
  • ✓ Free API access makes 1inch the default aggregation backend for many wallets
  • ✓ Mature product with 4+ years of audited smart contract history

Cons

  • ✗ UI can be overwhelming for non-technical users compared to Uniswap's simplicity
  • ✗ Fusion Mode resolvers occasionally fail to fill at the expected price in illiquid markets
  • ✗ 1INCH token staking for protocol fee discounts adds complexity
  • ✗ Smart contract approval required per token — still vulnerable to phishing if user revokes wrong contracts
  • ✗ Some routes produce worse prices than Paraswap for specific token pairs

1inch Pricing (2026)

1inch offers a free plan.

1inch

Free

Free

  • ✓Best-price routing
  • ✓300+ liquidity sources
  • ✓Fusion Mode (gasless swaps)
  • ✓Limit orders
  • ✓All supported chains
  • ✓API access
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1inch Features

Feature1inch
Gasless Swaps✓
Limit Orders✓
Multi Chain Support✓
Mev Protection✓
Api Access✓
Mobile App✓
Liquidity Sources300+
Price Impact Estimate✓
Slippage Control✓
Governance Token✓

Frequently Asked Questions

Is 1inch free?

Yes, 1inch has a free plan.

What is 1inch used for?

1inch is used for the original dex aggregator — best-price routing across 300+ liquidity sources. It's primarily used by Web3 teams in the DEX Aggregators category.

What are the best alternatives to 1inch?

See our full alternatives comparison at web3tools.directory/alternatives/1inch.

How does 1inch compare to other dex aggregators tools?

1inch has a rating of 4.6/5 based on 1243 reviews. Key strength: Pathfinder routing engine produces best net price across 300+ liquidity sources. Main limitation: UI can be overwhelming for non-technical users compared to Uniswap's simplicity.

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