How it works

The Smart Contract Checker API works by using a combination of machine learning, static, and dynamic analysis to check the contract source code and metadata associated with the contract (i.e. owners/creators) for scammer characteristics.

What we look for:

	Description
Scammer owners/creators	Check if the contract was deployed or ever controlled by a wallet that is known to be a scammer.
Security vulnerabilities	Check if there are any security vulnerabilities in the contract source code that could lead to attacks that might drain assets or otherwise allow unauthorized changes. See the Smart Contract Weakness (SWC) Registry for some examples.
Scam contract code	Check for code patterns or behaviors that are known to be used in scam contracts (i.e. honeypots).
Verified contract code	Check if any contract involved in the transaction has verified source code.
ERC compliance	Check if the contract is compliant with any of the typical ERC standards for NFTs (ERC721, ERC1155) and cryptocurrencies (ERC20).
Allow/deny list presence	Check if the contract is present on any allow lists of verified safe contracts or deny lists of known scammer contracts.

Use cases

Marketplaces

Protect your users and your brand by checking NFT smart contracts before listing new collections in order to prevent accidentally exposing your users to scams.

Wallets

Check contracts at transaction time in order to protect your users from interacting with scam or otherwise vulnerable contracts.

Exchanges

Protect your users and your brand by checking ERC20 smart contracts before listing new tokens on the exchange in order to prevent loss for you and your users.