Etherscan
FreemiumLiveLast verified 24 Sept 2026
Ethereum and 60+ EVM chain blockchain data: balances, transactions, contracts, token transfers.
Example request
curl -s 'https://api.etherscan.io/v2/api?chainid=1&module=stats&action=ethsupply&apikey=$API_KEY'
Free tier, in plain English
Free with a registered API key at 3 requests/second and 100,000 calls a day, but the free tier is restricted to personal/informational use and requires attribution.
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