CoinGecko
est. 2014
The independent price-tracking giant — free market data, categories and an API used by half the industry.
Established 2015
The block explorer for Ethereum — verify every transaction, address and contract yourself.
Etherscan is Ethereum's public ledger interface: look up any transaction, wallet or smart contract, check gas prices, verify contract source code, and manage token approvals. If you transact on Ethereum, 'check it on Etherscan' should be your reflex before trusting anything.
Founded
2015
Category
Data & Research
Platforms
Web
Key facts
Block explorer, Ethereum, Token approvals
Verifying transactions, wallets and contracts
Free; API tiers for heavy use.
Use the approval checker (tokenapprovalchecker) every few months to revoke permissions you no longer need — a top security habit.
est. 2014
The independent price-tracking giant — free market data, categories and an API used by half the industry.
est. 2020
The open-source, ad-free TVL dashboard that became DeFi's ground truth.
est. 2016
One explorer for 20+ blockchains, with a privacy-friendly stance and powerful search.