How CoinFello's MinChi Park Built the Trust Layer 500 Million Crypto Users Have Been Waiting For

CoinFello launched publicly at EthCC 2026 with an AI agent that executes DeFi transactions through natural language while keeping private keys on the user's device. The security model uses ERC-7710 scoped delegations — users grant the agent a limited spending permission rather than wallet access, and can revoke it with one action. ETHDenver alpha surfaced two surprises: multilingual demand the team had not anticipated, and developer demand to use CoinFello as an execution layer for third-party agents. The B2B infrastructure angle, enabling Claude Code, Windsurf, and OpenClaw agents to call CoinFello for onchain execution, is now a primary growth thesis alongside the consumer product.