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POST
/
protocol
/
createMarket
Create a new market
curl --request POST \
  --url https://mainnet.base.org/protocol/createMarket \
  --header 'Content-Type: application/json' \
  --data '
{
  "creator": "<string>"
}
'
{
  "marketAddress": "<string>",
  "marketCounter": 123,
  "transactionHash": "<string>"
}

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This is a smart contract write function. The curl example shown is for illustration. To call this function, use web3 libraries (ethers.js, viem, web3.py) or JSON-RPC directly.

Body

application/json
​
creator
string
required

Address that will receive creator fees

Pattern: ^0x[a-fA-F0-9]{40}$

Response

Market created successfully

​
marketAddress
string

Address of the newly created market

Pattern: ^0x[a-fA-F0-9]{40}$
​
marketCounter
integer<uint64>

Counter/ID of the created market

​
transactionHash
string

Transaction hash of the market creation

Pattern: ^0x[a-fA-F0-9]{64}$