MetaMask

Use when the user asks anything about blockchain wallets, transactions, signing, token transfers, supported chains, wallet balances, perpetual futures trading, prediction markets, token swaps, cross-chain bridges, market data, token discovery, decoding EVM calldata, DeFi earn/yield vaults, installing or removing third-party `mm` CLI plugins, or authentication via the MetaMask Agentic CLI; also when an HTTP request returns 402 Payment Required / x402, when an MCP tool call returns an x402 payment-required result, or the agent needs to pay for a paywalled API, endpoint, file, tool, or resource. Single entry point for all mm CLI operations.