Venues / 1inch

Is 1inch legit and safe?

1inch is a real, operating dex aggregator live since 2019-05. It is non-custodial, KYC: none, and is backed by Binance Labs, Dragonfly Capital, Galaxy Digital and others (Seed); Pantera Capital, ParaFi Capital, Nima Capital (Series A); Amber Group, Jane Street, VanEck and others (Series B). We found 2 reported incidents (listed below). Legit is not the same as low-risk: the coins traded on it can still go to zero.

The checklist

Custody: who holds your money

Terms: 'The Products are strictly non-custodial.' Users connect self-custodial wallets.

Who backs 1inch

• Binance Labs, Dragonfly Capital, Galaxy Digital and others (Seed) — $2,800,000 (2020-08) source
• Pantera Capital, ParaFi Capital, Nima Capital (Series A) — $12,000,000 (2020-12) source
• Amber Group, Jane Street, VanEck and others (Series B) — $175,000,000 (2021-12) source

Incidents

• 2024-10-31: Supply-chain attack on 1inch Swap (Avalanche). DefiLlama lists a $723,000 Frontend & Infrastructure supply-chain attack tagged to 1inch Swap on Avalanche. No further details were found in a primary source. source
• 2025-03-05: Fusion v1 resolver exploit. An attacker exploited a calldata-corruption bug in obsolete Fusion v1 resolver contracts and took about $5M from resolvers, mainly the market maker TrustedVolumes. Most funds were returned, with the attacker keeping about $450,000 as a white-hat fee. 1inch said no end-user funds were at risk. source

Real downsides

• Some swaps carry infrastructure fees whose rates are not published on the help page.
• A $5M exploit hit obsolete Fusion v1 resolver contracts in March 2025, mostly recovered; 1inch said no user funds were at risk.
• Gas is still charged on Pro swaps, Solana swaps and swaps from native tokens.
• No user referral program was found.

Can you use it where you live?

Terms say access is not restricted by country, 'including for users located in the United States, Europe or Asia', except sanctioned jurisdictions and persons. Some features may be unavailable in some US states. UAE users can only view and exit positions. (source)

We report what the venue's own terms say. Don't use a VPN to get around restrictions; venues can freeze accounts that do.

How to use 1inch without getting scammed

• Only open 1inch.com — fake lookalike sites and "support" DMs are the most common way people lose funds on any trading venue.
• Never share a seed phrase or private key. No real support agent will ask for one.
• A referral code only changes your fee and who gets a share of it. It never needs your keys.
• Treat every new memecoin as able to go to zero. A legit venue does not make the coins on it safe.

Official site: 1inch.com

Comparing options? See the full 1inch sheet or CoW Swap, Jupiter, Matcha.

More on 1inch: Overview · Fees · Is it legit? · News · Alternatives · Available in the US? · KYC required? · Mobile app? · Custodial? · Supported chains · Withdrawals