curl --request GET \
  --url https://api.blockworks.com/v1/assets/{idOrSlug}/supply \
  --header 'x-api-key: <api-key>'

import requests

url = "https://api.blockworks.com/v1/assets/{idOrSlug}/supply"

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/assets/{idOrSlug}/supply', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "circulating": 120702472.20949,
  "liquid": 0,
  "total": 120702572.39159,
  "asset_code": "ETH",
  "asset_slug": "ethereum"
}