Token standard checker
Paste a contract and see whether it really implements ERC-20, 721, 1155 or 4626.
Runs in your browser
Contract to check
Everything is read straight from the deployed bytecode and live calls — no source code needed.
The address the token is deployed at.
Pick the standard the contract claims to implement.
Where the contract is deployed.
No verdict yet
Enter a contract address and you get a pass or fail for the standard, then a line for every entry point the standard requires.