Is MetaMask ERC-20 or BEP20?

Ah, an intriguing question indeed. MetaMask, as a popular crypto wallet, supports multiple blockchain standards and protocols. But to specifically answer your query, it doesn't fall into the categories of ERC-20 or BEP20 itself. ERC-20 is a standard for tokens issued on the Ethereum blockchain, defining how these tokens should function and interact within the ecosystem. On the other hand, BEP20 is a similar standard but for tokens issued on the Binance Smart Chain. MetaMask, however, is a wallet that can hold and interact with tokens adhering to these standards. It's like a container that can hold different types of coins and tokens, regardless of their underlying protocols. So, you can use MetaMask to store, send, and receive ERC-20 tokens on Ethereum or BEP20 tokens on Binance Smart Chain. It's a versatile tool that bridges the gap between users and various blockchain-based assets.