Etherscan – The Ultimate Blockchain Explorer and Analytics Platform for Ethereum | Quasa.io

#Quasa #QUA #Etherscan

Etherscan is the Ethereum block explorer most people open first: addresses, txs, tokens, gas, verified contracts, internal calls. The site stays free. Premium is $10.99 a month or $99 a year for ad-free browsing, more private tags, and notes. It does not include API. API is separate: Free at 3 calls/sec and 100k/day on selected chains; Lite $49/mo for all community chains; Standard $199; Advanced $299; Professional $399; Pro Plus $899; Enterprise custom. Source and ABI endpoints stay free. Free coverage is about 90% of chains. Attribution is required on Free. It is not a wallet and not a trading terminal. For one lookup, stay on Free. For a bot, pay Lite or die on rate limits.

𝐂𝗢𝗥𝗘 𝗦𝗧𝗥𝗘𝗡𝗚𝗧𝗛𝗦
• Default Ethereum source of truth
• Contract source and ABI stay free
• Gas tracker and token pages
• Multichain family via Blockscan
• Cheap Premium for power users of the UI  

𝗜𝗗𝗘𝗔𝗟 𝗙𝗢𝗥
Anyone checking a hash, plus builders who need Ethereum data without running a node.

𝗛𝗜𝗚𝗛𝗟𝗜𝗚𝗛𝗧𝗦
• Core explorer remains free
• Premium and API are split products
• Lite plan after free-chain cuts
• MCP / API for agents
• Private tags and notes  

𝗣𝗢𝗧𝗘𝗡𝗧𝗜𝗔𝗟 𝗖𝗢𝗡𝗦𝗜𝗗𝗘𝗥𝗔𝗧𝗜𝗢𝗡𝗦
• Free API is capped and partial-chain
• Ads on the free site
• Premium does not unlock API
• Rate limits punish naive loops
• Not a portfolio or tax tool  

𝗢𝗩𝗘𝗥𝗔𝗟𝗟 𝗩𝗘𝗥𝗗𝗜𝗖𝗧
4.7/5 stars. Keep the site bookmarked. Buy Premium if ads and tag limits annoy you. Buy Lite the day your script hits 3 rps. Earn 1 QUA reward by reviewing on Quasa.io too!

𝗚𝗘𝗧 𝗦𝗧𝗔𝗥𝗧𝗘𝗗: https://quasa.io/projects/etherscan