What chains does CoW Swap support?
CoW Swap supports 10 chains: Ethereum, Gnosis, Arbitrum, Base, Avalanche, Polygon, BNB Chain, Linea, Plasma and Ink.
Checked 2026-10-20 · 3 sources- Chains are listed as published by the venue on 2026-10-20. New chains are added often.
- CoW Swap is a aggregator; supported chains can differ between spot trading and other products.
Sources: CoW Protocol Docs: Fees (volume, quote improvement and surplus fees) · CoW Protocol Docs: Partner Fee · CoW Protocol Docs: Affiliate Program. The venue's own page wins if it disagrees with ours.
CoW Swap
DEX aggregator · 0.04% round trip. CoW Swap is the main web interface for CoW Protocol, an intent-based DEX aggregator. You sign an order instead of sending a swap, and bonded solvers compete in batch auctions to fill it, matching traders directly where they can and routing the rest through onchain liquidity. It runs on Ethereum and nine other EVM chains.
Full CoW Swap sheet: fees, custody, incidents →