Ethereum-Trading-MCP-Server

The server requires a `PRIVATE_KEY` to be set as an environment variable, which is used to instantiate a `LocalWallet` for transaction simulation in the `swap_tokens` function. While the current implementation only uses this for `estimate_gas` (which performs an `eth_call` and does not execute on-chain), exposing a live private key to a server, especially one designed for AI agents, introduces a significant risk. If the server were compromised or the code accidentally or maliciously modified, this private key could be used to sign and broadcast real transactions, leading to potential fund loss. A safer approach for simulations might involve using a dedicated simulation environment or a burner private key with no real assets.