Polygon
The Ethereum L2 network on which Polymarket's smart contracts are deployed, providing fast finality and low transaction costs for prediction market settlement.
Definition
Polygon is a proof-of-stake sidechain and Layer 2 scaling solution for Ethereum. It offers sub-second block times, transaction fees measured in fractions of a cent, and EVM compatibility. Polymarket deploys its Conditional Tokens Framework contracts on Polygon, meaning all outcome token minting, transfers, and redemptions happen on this chain.
In practice
For predtools bot developers, Polygon is largely invisible — the CLOB API and relayer handle all on-chain interactions. USDC on Polygon (Polygon-native USDC) is the deposit and settlement currency. When checking on-chain positions directly (e.g., for audit or whale tracking), a developer queries the Polygon RPC with the proxy wallet address and the CTF contract ABI. Gas fees on Polygon are paid in MATIC (now POL), but because the relayer batches transactions and absorbs gas, bot operators never need to hold MATIC in their proxy wallet.