Etherscan Offers Free Blockchain Explorer and Optional Premium Subscription
Etherscan is a widely-used platform for Ethereum blockchain exploration and analytics. The site offers a range of features, including address lookup, transaction history, token tracking, gas monitoring, and verified contract information.
The core explorer remains free to use, with no ads or restrictions on data access. However, users who require more advanced features can opt for the Premium plan, which costs $10.99 per month or $99 per year.
Premium subscribers gain access to ad-free browsing, private tags, and notes, but it does not include API access. Etherscan's API is available separately, with various pricing tiers starting from free at 3 calls per second and 100k daily on selected chains.