Addresses

Base Sepolia (Testnet)

MarkIt is currently deployed on Base Sepolia for testing.

Contract	Address	Explorer
MarketFactory	0x1e59Be5ffAdD578CC4352dC5Ca1b74DF998834a0	View on BaseScan
LpVault	0x89171fBDFC91599760599c49FC05EdF8c1BE6a19	View on BaseScan
USDC (Test)	0x7FB34673d7790635C9Dba6272478Aa912D87aC1c	View on BaseScan

The MarketFactory is owned by the LpVault, which creates and funds markets. Individual MarketEngine contracts are deployed per market. You can query the factory to get all market addresses:

// Get all deployed market addresses
address[] memory markets = MarketFactory.getMarkets();

// Check if an address is a valid market
bool valid = MarketFactory.isMarket(marketAddress);

// Get total number of markets
uint256 count = MarketFactory.marketCount();

Base Mainnet

Contract	Address
MarketFactory	Not yet deployed
USDC	Will use native USDC on Base

Chain Details

Property	Base Sepolia (Testnet)	Base (Mainnet)
Chain ID	84532	8453
RPC URL	https://sepolia.base.org	https://mainnet.base.org
Block Explorer	sepolia.basescan.org	basescan.org
Native Token	ETH (for gas)	ETH (for gas)

ABIs

Contract ABIs are available in the frontend source code and can be used to interact with MarkIt programmatically:

• MarketEngine ABI — Includes all functions, events, and error definitions

• MarketFactory ABI — Factory deployment and query functions

• LpVault ABI — Vault deposit, withdrawal, batch creation, and NAV functions

• ERC-20 ABI — Standard token interface for USDC and OutcomeTokens

For developers building on MarkIt: The complete ABIs are exported from the frontend package at frontend/src/lib/abi.ts (MarketEngine + ERC-20), frontend/src/lib/factory.ts (MarketFactory), and frontend/src/lib/vault.ts (LpVault). These are as const typed for use with viem/wagmi.