GGlossary · 1 min read

What is a DEX?

A DEX swaps tokens straight from your wallet through pool contracts, with no account and no custodian. How it prices trades and what moves the price.

301 words · about 1 minute·Article updated 20 August 2026
Definition

A DEX, or decentralized exchange, is a set of contracts that swaps one token for another straight from your wallet. There is no account, no order book operator and no custodian. You trade against a liquidity pool, and the contract settles the swap in the same transaction.

Price comes from the pool, not from a matching engine. On Robinhood Chain most trading runs through Uniswap v3 pools, where the ratio of the two tokens sets the quote and your own order changes that ratio as it executes. Buy a large amount from a shallow pool and you move the price against yourself while the trade is happening — which is why the quote you accept and the price you get can differ, and why slippage tolerance exists as a setting. Across the chain, DEX trading ran pending in the last 24 hours.

Because it is non-custodial, nobody can freeze the trade, reverse it, or refund it. The contract does exactly what its code says, including when the code is hostile.

Where you'll see it on Locksley

Every token page reads its price, depth and trade history from the pool contracts a DEX uses, so the figures come from the same source the swap does. Explore screens all pending tracked tokens on those reads.

The checks worth running before a first swap are in how to buy tokens safely on Robinhood Chain.

Frequently asked questions

Is a DEX the same as a centralized exchange?

No. A centralized exchange holds your assets, runs an order book internally, and can freeze, reverse or refund. A DEX holds nothing: your wallet signs a swap against a pool contract and settlement happens on-chain in that transaction. The trade-off is control against recourse — no custodian to lose your funds, and no support desk either.

FiguresEvery number on this page is frozen at the date printed beside it and refreshed when the page is rebuilt — not live. The sentences reason about the figures, so a value that changed underneath them would make the prose wrong. Live values live on Explore and the pages it links out to. Methodology →
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Who wrote thisWritten and maintained by the Locksley editorial team. Locksley is built by TrustSwap, which also owns Team Finance — the tool linked above.