Average of the sum of the base fee and priority fee in USD that day
cURL
curl --request GET \ --url https://api.blockworks.com/v1/metrics/fee-average-usd \ --header 'x-api-key: <api-key>'
{ "projectName": [ { "date": "2025-08-10", "value": 123456.789 }, { "date": "2025-08-11", "value": 234567.89 }, { "date": "2025-08-12", "value": 345678.901 } ] }
curl -H "x-api-key: YOUR_API_KEY" \ "https://api.blockworks.com/v1/metrics/fee-average-usd?project=base"
{ "base": [ { "date": "2025-09-05", "value": 657 }, { "date": "2025-09-06", "value": 1066 }, { "date": "2025-09-07", "value": 405 }, { "date": "2025-09-08", "value": 653 }, { "date": "2025-09-09", "value": 486 } ] }
Project slug (comma-separated for multiple).
arbitrum
base
ethereum
solana
"arbitrum"
Start date (YYYY-MM-DD)
End date (YYYY-MM-DD)
OK
The response is of type object.
object