OpenOcean Finance — Best-Rate DEX & Cross-Chain Aggregator

Smart routing, broad chain coverage, and powerful APIs that aggregate liquidity across decentralized and centralized venues to deliver competitive swap rates with low slippage.

What is OpenOcean?

OpenOcean is a multi-chain decentralized exchange (DEX) aggregator and cross-chain swap engine. It discovers liquidity across many DEXes (and some CEX liquidity sources), splits routes, and executes trades to secure the best price for users while minimizing slippage and gas costs.

Multi-chain routing

Aggregates liquidity across EVM chains, L2s, and non-EVM chains for seamless swaps.

Smart split routes

Optimized split routing reduces slippage — trades can be executed across multiple pools and chains.

APIs & integrations

APIs enable wallets, dApps, and institutions to programmatically fetch best rates and perform swaps.

How OpenOcean works (brief)

OpenOcean runs routing algorithms (an optimized Dijkstra-style approach) across many liquidity sources. When you submit a swap, OpenOcean samples prices, may split the order across routes and chains, and selects the path with the best expected outcome after fees and gas. The protocol exposes smart contracts on many chains and an API layer for external integrations.

Quick start — trade in 3 steps

Choose chains and tokens — Pick the source and destination tokens and the chain(s) you want to use.
Review routes — Check estimated price, slippage, and gas. OpenOcean shows split routes when it helps the price.
Confirm & sign — Approve the transaction with your wallet (hardware wallet supported) and watch the cross-chain execution complete.

Key features for traders

Best-rate swaps across dozens of chains and hundreds of liquidity sources.
Limit orders and gas-efficient order options in some markets.
API access for programmatic routing and one-click integration into wallets and apps.

If you're integrating OpenOcean into a product, check the official API docs and SDKs for examples and rate limits before going to production.

Token & governance

OpenOcean's native token (OOE) is used for protocol governance and utility across the ecosystem. Token holders may participate in governance, fee discounts, and other ecosystem incentives depending on the proposal and feature set.

Pro tip

For large or complex cross-chain trades, run a small test swap first. Review route breakdowns and on-chain receipts to confirm expected behavior before sending larger amounts.

Security & trust

OpenOcean publishes protocol docs and smart-contract addresses. Always confirm contract addresses from the official docs or site, enable hardware wallet confirmations for large ops, and verify transactions on the chain block explorers after execution.

FAQ

Does OpenOcean charge extra aggregator fees?: OpenOcean aims to surface best prices; the user is typically responsible for network gas and any negligible routing fees shown at checkout. Check the swap preview for details.
Can I use OpenOcean programmatically?: Yes — OpenOcean provides developer APIs and SDKs for fetching quotes and executing trades through integrations.
How many chains does OpenOcean support?: OpenOcean supports a large and growing number of chains (dozens), including major EVM chains, L2s, and select non-EVM chains — consult the docs for the current list.