Overview
CLOB markets use a venue system where each market is associated with specific contract addresses. Before placing orders, you must fetch venue data for the market.
How It Works
Fetch market data
GET /markets/:slug returns venue information for the market.
Use venue.exchange
This address is the verifyingContract for EIP-712 order signing.
Cache the venue
Venue data is static per market — fetch once and reuse.
Venue Response
{
"venue": {
"exchange": "0xA1b2C3...",
"adapter": "0xD4e5F6..."
}
}
Required Token Approvals
Before trading, set up token approvals based on your order type:
| Order Type | Market Type | Approve To |
|---|
| BUY | All CLOB | USDC → venue.exchange |
| SELL | Simple CLOB | Conditional Tokens → venue.exchange |
| SELL | NegRisk / Grouped | Conditional Tokens → venue.exchange AND venue.adapter |
For NegRisk SELL orders, you must approve to both the exchange and the adapter addresses.
