Polymarket what chain?
Polymarket operates on the Polygon blockchain network. Specifically: Polygon (formerly Matic) - Polymarket uses Polygon for all transactions and smart contracts.
USDC on Polygon - Users deposit USDC (USD Coin) specifically on the Polygon network, not Ethereum mainnet. Low fees - Polygon provides fast and cheap transactions compared to Ethereum mainnet. Cross-chain considerations - While built on Polygon, Polymarket handles the blockchain interactions internally so users mainly interact with the web interface.
In March 2026, Polymarket acquired Brahma to simplify its blockchain infrastructure.