Connects to Crypto APIs to dry-run EVM transactions before broadcasting them on-chain. Exposes a simulate_evm tool that lets you preview transaction results, gas costs, and state changes across Ethereum, BSC, Polygon, Avalanche, Arbitrum, Base, Optimism, and other EVM chains. You pass in sender and recipient addresses, transaction data, gas parameters, and get back what would happen without spending real gas or committing to the blockchain. Useful when you're building contract interactions and want to catch reverts or estimate costs before executing. Requires a Crypto APIs account and key. Can run in stdio mode for local development or HTTP mode for remote access with per-request API keys.
claude mcp add --transport stdio io.github.cryptoapis-io-mcp-simulate -- npx -y @cryptoapis-io/mcp-simulate