Costs, licensing, consumer protection Privacy, self-custody, censorship resistance
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1inch (DEX Aggregator)

1inch

1inch Network (sviluppo: 1inch Labs; token emesso da 1inch Foundation)

Status
DAO
Legal HQ
No Physical Headquarters
Founded
2019
Corporate site
1inch.io
Valuation
$2.3B
Latest round
Series B — $175M (dicembre 2021), lead Amber Group

Main investors / shareholders

  • Pantera Capital · Other
  • Binance Labs · Other
  • Amber Group · Other
  • Jane Street · Other
  • VanEck · Other
  • Fenbushi Capital · Other
  • ParaFi Capital · Other
  • Blockchain Capital · Other
  • Spartan Group · Other
  • Nexo · Other

1inch raised about $190M across 4 rounds: a $2.8M seed (Aug 2020, led by Binance Labs), a $12M Series A (Dec 2020, led by Pantera Capital) and a $175M Series B (Dec 2021, led by Amber Group), at a $2.25B valuation. The 1INCH token is issued by the non-profit 1inch Foundation; the protocol is governed by a DAO.
4.3/5 3.7/5
Liquidity model Hybrid

Data verified on unchanged since the sources

Worth it if you swap on EVM chains and want the best non-custodial routing (around 59% aggregator market share), zero protocol fee and cross-chain atomic swaps via Fusion+.

Avoid it if you want formal protection (no regulator or guarantee) or exposure to the 1INCH token, which suffers from low liquidity; execution depends on the underlying DEXs.

Visit official website ↗

A leading DEX aggregator on EVM chains, holding around 59% market share, with no protocol fee and cross-chain atomic swaps via Fusion+. As a non-custodial protocol it depends on the underlying DEXs, and the 1INCH token suffers from low liquidity.

73
Transparency: Medium
73/100 · see methodology
73
Data exposure: Medium
73/100 · lower is better for sovereignty · methodology

Data & conditions

Liquidity model Hybrid
Maker / Taker fee 0% / 0%
Markets Spot
Supported chains Ethereum, BSC, Polygon, Optimism, Arbitrum, Avalanche, Gnosis, Fantom, Klaytn, Aurora, ZkSync, Base
TVL (as of Jun 13) $0
24h volume $586M
Native token 1INCH
Fund custody Non-custodial (funds in your wallet)
Supported wallets MetaMask, WalletConnect, Ledger, Trust Wallet, Coinbase Wallet, Binance Web3 Wallet, MEW (MyEtherWallet), Torus, Bitski
Audits OpenZeppelin (13+ audit, incl. Protocol Fee, Router v5, cross-chain swap), ConsenSys Diligence, ABDK Consulting, CertiK
Governance DAO + 1INCH token (Unicorn Power staking)
KYC Full
Supported countries US, EEA, APAC, LATAM, MENA, AFRICA · 200+ countries
Regulator None
Segment B2C
MiCA / License status None (decentralized protocol) DEX aggregator

Strengths

  • 59% market aggregator EVM; 0% protocol fee; Fusion+ cross-chain atomic swap.
  • Self-custody: funds stay in your wallet — the platform cannot touch them.
  • Permissionless and decentralized: no approval needed to operate.
  • Public security audits.

Weaknesses

  • Token 1INCH low liquidità; depends from DEX sottostanti.
  • Full KYC required: verified identity, zero pseudonymity.
  • Subject to regulation (DEX aggregator): reporting to authorities and freezes on order.

Verdict

A B ★ 4.3/5 ★ 3.7/5

For the mainstream user the limits of any non-custodial aggregator apply: no regulator, no guarantees, self-held keys and operation that depends on the underlying DEXs and their reliability. The 1INCH token's low liquidity is a further warning sign. The grade stays high for execution quality, but there is no formal protection.

Here 1inch is at its best: a leading non-custodial aggregator on the EVM ecosystem with around 59% share, twelve supported chains, zero protocol fee and cross-chain atomic swaps via Fusion+. Trustless routing to the best liquidity, on-chain settlement, no KYC and full fund control: a top-tier crypto-native profile. Dependence on the underlying DEXs is inherent to the model and the only real caveat.

Privacy & anonymity 30% 2.3
Fund control 20% 5.0
Censorship resistance 20% 3.3
Trustless / auditability 20% 4.2
Costs 10% 5.0

Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.

"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.

Reputation

What happened to people who used 1inch (DEX Aggregator), and what users say. External signals: they do not feed the promp.it rating.

Incidents & regulatory actions

Past incidents, resolved

Documented and closed events. They stay on file: an operator’s past is data, not a verdict.

  1. Hack / funds theft Moderate $5M ✓ resolved

    A flaw in 1inch's old Fusion v1 contract cost about 5 million dollars to a market maker still using it. No end-user funds touched; the attacker returned about 4.05 million, keeping the rest as a 10% «finder's fee»

    On 5 March 2025 an attacker took roughly **5 million dollars** — 2.4 million USDC and 1,276 WETH — exploiting a flaw in the `_settleOrder` function of the **Fusion v1 resolver contracts**, the retired version of 1inch's order settlement system. The bug is an **integer underflow**: passing a negative `interactionLength` value (-512) produced memory corruption that allowed funds to be redirected. No sophisticated technique, basic arithmetic — and, worth recording, **nine audit teams had missed it**. Who lost the money, because that is the distinction that matters: not 1inch's users, but the **resolvers**, the market makers that execute orders on the protocol and still had the Fusion v1 implementation running inside their own contracts. The worst hit was TrustedVolumes. 1inch stated publicly: «We're actively working with affected resolvers to secure their systems. We urge all resolvers to audit and update their contracts immediately». ⚠️ What does not add up in the communication should also be said: the company's first statement — «no end-user funds were at risk» — was technically true but **omitted the 5 million already taken from resolvers**, and it was called out for that. After a negotiation the attacker **returned about 4.05 million dollars**, keeping roughly **450,000** as a self-assigned «10% finder's fee». The case is closed: the vulnerable contracts were already deprecated, and the residual exposure only concerned those who had not updated them. Why this entry exists: until today the card declared «no known incident» with a verification date — a **false** statement, given the event dates to March 2025.

    ↗ source

verified on

FAQ

Is 1inch (DEX Aggregator) truly decentralized?

1inch (DEX Aggregator) is a non-custodial decentralized exchange: funds stay in your wallet. Liquidity model: Aggregator. Governance token: 1INCH.

Which blockchains does 1inch (DEX Aggregator) support?

1inch (DEX Aggregator) is available on Ethereum, BSC, Polygon, Optimism, Arbitrum, Avalanche, Gnosis, Fantom, Klaytn, Aurora, ZkSync and Base.

What is 1inch (DEX Aggregator)'s TVL?

1inch (DEX Aggregator)'s TVL is not available in this snapshot; check DefiLlama for the live figure.

What are 1inch (DEX Aggregator)'s fees?

1inch (DEX Aggregator)'s trading fees range 0%. On top of these there are on-chain gas fees, which vary with network congestion.

Does 1inch (DEX Aggregator) support perpetuals and leverage?

1inch (DEX Aggregator) does not offer perpetuals. It supports spot token swaps.

Sources

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Update history

✓ Terms unchanged since Jun 1, 2026

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