Financials
Katana: Priority Fees
An additional transaction fee to incentivize validators to prioritize and execute transactions.
GET
/
v1
/
metrics
/
transaction-priority-fee-total-native
Transaction Priority Fee Total Native
curl --request GET \
--url https://api.blockworks.com/v1/metrics/transaction-priority-fee-total-native \
--header 'x-api-key: <api-key>'import requests
url = "https://api.blockworks.com/v1/metrics/transaction-priority-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-priority-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-priority-fee-total-native?project=katana"
const res = await fetch(
'https://api.blockworks.com/v1/metrics/transaction-priority-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-priority-fee-total-native',
headers={'x-api-key': 'YOUR_API_KEY'},
params={'project': 'katana'}
)
data = r.json()
Example Response
{
"katana": [
{
"date": "2026-04-19",
"value": 0.4153542724170714
},
{
"date": "2026-04-18",
"value": 0.4221504806748541
},
{
"date": "2026-04-17",
"value": 0.6784100338136717
},
{
"date": "2026-04-16",
"value": 0.6449122034537769
},
{
"date": "2026-04-15",
"value": 0.5524827615673686
}
]
}
Notes
- Intervals are daily unless otherwise noted.
- Data is updated daily and may be revised after late-arriving data.
Authorizations
Query Parameters
Project slug (comma-separated for multiple).
Available options:
arbitrum, base, berachain, bob, boba, ethereum, fogo, ink, katana, megaeth, mode, monad, plasma, shape, solana, superseed, worldchain, zora Example:
"arbitrum"
Start date (YYYY-MM-DD)
End date (YYYY-MM-DD)
Response
OK