What it does
The Etherscan API reads balances, transactions, contracts and token data on Ethereum and other chains, for example to list the transfers of an address. Requests are GET calls with JSON answers. Free with a free API key for personal and research use, up to 3 calls a second and 100,000 a day on selected chains. An official MCP server at https://mcp.etherscan.io/mcp lets AI agents read chain data.
At a glance
- API key
- Needed, free · More APIs with a free key
- Pricing
- Free with a free API key for personal and research use, up to 3 calls a second and 100,000 a day on selected chains.
- Commercial use
- Not on the free plan
- From the browser
- Yes (CORS)
- Formats
- JSON
- Interface
- REST, HTTP-GET, MCP
- Provider
- docs.etherscan.io
More information: https://docs.etherscan.io/
Is this your service? Show that it is listed
Put this badge on your website or in your README; it links to this page. About the badge
Example request
curl
curl 'https://api.etherscan.io/v2/api?chainid=1&module=stats&action=ethprice&apikey=YOUR_API_KEY'JavaScript
const response = await fetch("https://api.etherscan.io/v2/api?chainid=1&module=stats&action=ethprice&apikey=YOUR_API_KEY");
const data = await response.json();
console.log(data);Python
import requests
response = requests.get(
"https://api.etherscan.io/v2/api?chainid=1&module=stats&action=ethprice&apikey=YOUR_API_KEY",
timeout=30,
)
print(response.json())Replace YOUR_API_KEY with your own key. The JavaScript works in a web page as well as in Node.js 18 or newer.