Ronin OpenSea Marketplace Fee Update
April 29th, 2025
On May 1st 2025 for the Ronin blockchain, all orders will continue to have a 0.5% marketplace, but will be split between 3 different addresses.
Change: Marketplace Fee
Collection API
We return all fees for a collection as a fees
object via the Collection API so you'll start to see the following:
"fees": [
{
"fee": 0.3, // used to be .5
"recipient": "0x0000a26b00c1f0df003000390027140000faa719", // OS fee address, stays the same
"required": true
},
{
"fee": 0.16,
"recipient": "0x61461e094c04884217c6a4e897409626231aacc8",
"required": true
},
{
"fee": 0.04,
"recipient": "0x22cefc91e9b7c0f3890ebf9527ea89053490694e",
"required": true
},
],
If your code is relying on this response field when generating payloads for order posting, you won't need to change anything.
Order Posting API
For the order posting endpoints (ex. creating an offer), you'll need to make sure that the updated fee values are included properly. Here's an example 1 WETH Seaport offer that has the combined fees included:
{
"parameters": {
"offerer": "...",
"offer": [
{
"itemType": 1,
"token": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"identifierOrCriteria": 0,
"startAmount": "10000000000000000000", // 1 WETH Offer
"endAmount": "10000000000000000000"
}
],
"consideration": [
{
"itemType": 2,
"token": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D",
"identifierOrCriteria": 1882,
"startAmount": 1,
"endAmount": 1,
"recipient": "0x48AAbAb1e5224540dfD31E48DeD0Ba6725185C93"
},
{
"itemType": 1,
"token": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"identifierOrCriteria": 0,
"startAmount": "30000000000000000", // 0.3% OS Fee
"endAmount": "30000000000000000",
"recipient": "0x0000a26b00c1F0DF003000390027140000fAa719"
},
{
"itemType": 1,
"token": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"identifierOrCriteria": 0,
"startAmount": "16000000000000000", // 0.16%
"endAmount": "16000000000000000",
"recipient": "0x61461e094c04884217C6a4E897409626231aaCC8"
},
{
"itemType": 1,
"token": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"identifierOrCriteria": 0,
"startAmount": "4000000000000000", // 0.04%
"endAmount": "4000000000000000",
"recipient": "0x22cefc91e9b7c0f3890ebf9527ea89053490694e"
}
],
...
},
"signature": ...
}