curl --request GET \
  --url https://api.blockworks.com/v1/metrics/etf-rolling-30d-flow-usd \
  --header 'x-api-key: <api-key>'

import requests

url = "https://api.blockworks.com/v1/metrics/etf-rolling-30d-flow-usd"

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/etf-rolling-30d-flow-usd', 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
    }
  ]
}