Foundry MCP Server

anvil_start

Start a new Anvil instance

anvil_stop

Stop a running Anvil instance

anvil_status

Check if Anvil is running and get its status

cast_call

Call a contract function (read-only)

cast_send

Send a transaction to a contract function

cast_balance

Check the ETH balance of an address

cast_receipt

Get the transaction receipt

cast_storage

Read contract storage at a specific slot

cast_run

Run a published transaction in a local environment

cast_logs

Get logs by signature or topic

cast_sig

Get the selector for a function or event signature

cast_4byte

Lookup function or event signature from the 4byte directory

cast_chain

Get information about the current chain

forge_script

Run a Forge script from the workspace

install_dependency

Install a dependency for the Forge workspace

create_solidity_file

Create or update a Solidity file in the workspace

read_file

Read the content of a file from the workspace

convert_eth_units

Convert between EVM units (wei, gwei, hex)

compute_address

Compute the address of a contract that would be deployed

contract_size

Get the bytecode size of a deployed contract

estimate_gas

Estimate the gas cost of a transaction

heimdall_disassemble

Disassemble EVM bytecode into human-readable opcodes

heimdall_decode

Decode raw calldata without requiring ABI

heimdall_decompile

Decompile EVM bytecode to Solidity source code and ABI

heimdall_cfg

Generate visual control flow graph for EVM bytecode

heimdall_inspect

Detailed inspection of Ethereum transactions