I’m building some contracts that interact with ERC20’s, but these ERC20’s are specified by some of the users and used by others. How do I assure that the contract addresses supplied are ERC20 compliant?

Hi @realisation , You can check if an address is a contract: Address isContract You can use SafeERC20 to wrap ERC20 operations to revert on failure. You could try calling some of the IERC20 functions. I am not sure if there is anything else you can do to ensure that contracts are ERC20 compliant,…

There is nothing you can do to detect whether the contract addresses supplied are ERC20 compliant. As @abcoathup said, you can check that the address is a contract using isContract, and you can additionally call the balanceOf function, but this should only be meant to protect against accidents. You…

Hi @realisation , Did the replies answer your question? Do you have further questions?

Hi @realisation , I thought the Online ERC20 Contract Verifier might be of interest: [image] Online ERC20 contract verifier Security Integrating ERC20 tokens in an app has usually been the source of unexpected issues, due to contracts not properly adhering to the standard.…

I found this as well: https://github.com/ethereum/EIPs/issues/2290 An official ERC20 factory

You can use tools like isiterc20.xyz to check if a smart contract address implements the ERC-20 interface. Just enter the contract address and select the network to verify.

How to assure a contract address is ERC20 compliant?

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abcoathup October 21, 2019, 12:57am 5

Hi @realisation,

I thought the Online ERC20 Contract Verifier might be of interest:

Topic		Replies	Views
Online ERC20 contract verifier Security erc20	7	9312	September 16, 2022
Online ERC20 contract verifier - Showcase Showcase	0	1142	October 28, 2019
Verify ERC20 token deployed by Remix Contracts	8	2214	February 19, 2021
OpenZeppelin's online ERC20 verifier: behind the scenes Security erc20	0	4431	October 31, 2019
Which public use tokens require safe ERC20 Contracts erc20	2	1865	March 8, 2020

How to assure a contract address is ERC20 compliant?

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