Simplest Multi-currency wallet for WordPress. (step by step guide here).
You can add any token from https://etherscan.io/tokens, https://bscscan.io/tokens (or your own ERC20 or BEP20 token), Matic tokens. All other cryptocurrencies are not supported
Allow users to buy Bitcoin, Ethereum and USDT using a credit card (without sending documents). Sell your own ERC20 token for ETH (client can buy ETH instantly then exchange to any token – see demo exchange form)