Financials
Katana: Operator Fees
An additional fee for OP Stack chains in order to pay operators, such as provers and verfiers, for their work and is included as part of the transaction fee
GET
/
v1
/
metrics
/
transaction-operator-fee-total-native
Transaction Operator Fee Total Native
curl --request GET \
--url https://api.blockworks.com/v1/metrics/transaction-operator-fee-total-native \
--header 'x-api-key: <api-key>'import requests
url = "https://api.blockworks.com/v1/metrics/transaction-operator-fee-total-native"
headers = {"x-api-key": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};
fetch('https://api.blockworks.com/v1/metrics/transaction-operator-fee-total-native', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));{
"projectName": [
{
"date": "2025-08-10",
"value": 123456.789
},
{
"date": "2025-08-11",
"value": 234567.89
},
{
"date": "2025-08-12",
"value": 345678.901
}
]
}Overview
- Denomination: ETH
- Type: Decimal
- Interval: Daily
- Source: Blockworks
Example Request
curl -H "x-api-key: YOUR_API_KEY" \
"https://api.blockworks.com/v1/metrics/transaction-operator-fee-total-native?project=katana"
const res = await fetch(
'https://api.blockworks.com/v1/metrics/transaction-operator-fee-total-native?project=katana',
{ headers: { 'x-api-key': 'YOUR_API_KEY' } }
)
const data = await res.json()
import requests
r = requests.get(
'https://api.blockworks.com/v1/metrics/transaction-operator-fee-total-native',
headers={'x-api-key': 'YOUR_API_KEY'},
params={'project': 'katana'}
)
data = r.json()
Example Response
{
"katana": [
{
"date": "2026-04-19",
"value": 0.06882837837836048
},
{
"date": "2026-04-18",
"value": 0.05692702702701117
},
{
"date": "2026-04-17",
"value": 0.07455405405403225
},
{
"date": "2026-04-16",
"value": 0.058348648648631984
},
{
"date": "2026-04-15",
"value": 0.049920270270257354
}
]
}
Notes
- Intervals are daily unless otherwise noted.
- Data is updated daily and may be revised after late-arriving data.