The Solidity library that protects DApps from receiving Ether from wallets that have not been verified by the Blocktopus platform.
The BlocktopusGuard Solidity library was audited by Dedaub on the 20th of September 2019.
In your DApp's Smart Contract, inherit the BlocktopusGuarded contract and apply the BlocktopusOnly modifier at your payable function that is accepting the funds.
Then the modifier will automatically reject any payments that are not originating from a KYC'd Blocktopus wallet.