Lots of examples
Learn from real-world usage. All the cast
command examples and options that you ever wanted, or didn't even know existed.
cast
commands at your fingertipsYour guide to mastering Foundry's cast
command-line tool
Learn from real-world usage. All the cast
command examples and options that you ever wanted, or didn't even know existed.
Execute without installation. Run (some) cast
commands in your browser. No Foundry setup, no terminal needed.
cast - Perform Ethereum RPC calls from the comfort of your command line.
cast
[options] command [args]
cast
[options] --version
cast
[options] --help
This program is a set of tools to interact with Ethereum and perform conversions.
cast help Display help information about Cast.
cast completions Generate shell autocompletions for Cast.
cast chain-id Get the Ethereum chain ID.
cast chain Get the symbolic name of the current chain.
cast client Get the current client version.
cast publish Publish a raw transaction to the network.
cast receipt Get the transaction receipt for a transaction.
cast send Sign and publish a transaction.
cast call Perform a call on an account without publishing a transaction.
cast rpc Perform a raw JSON-RPC request [aliases: rp]
cast tx Get information about a transaction.
cast run Runs a published transaction in a local environment and prints the trace.
cast estimate Estimate the gas cost of a transaction.
cast access-list Create an access list for a transaction.
cast logs Get logs by signature or topic
cast find-block Get the block number closest to the provided timestamp.
cast gas-price Get the current gas price.
cast block-number Get the latest block number.
cast basefee Get the basefee of a block.
cast block Get information about a block.
cast age Get the timestamp of a block.
cast balance Get the balance of an account in wei.
cast storage Get the raw value of a contract's storage slot.
cast proof Generate a storage proof for a given storage slot.
cast nonce Get the nonce for an account.
cast code Get the bytecode of a contract.
cast codesize Get the runtime bytecode size of a contract.
cast lookup-address Perform an ENS reverse lookup.
cast resolve-name Perform an ENS lookup.
cast namehash Calculate the ENS namehash of a name.
cast etherscan-source Get the source code of a contract from Etherscan.
cast abi-decode Decode ABI-encoded input or output data.
cast abi-encode ABI encode the given function arguments, excluding the selector.
cast 4byte Get the function signatures for the given selector from https://openchain.xyz/signatures.
cast 4byte-decode Decode ABI-encoded calldata using https://openchain.xyz/signatures.
cast 4byte-event Get the event signature for a given topic 0 from https://openchain.xyz/signatures.
cast calldata ABI-encode a function with arguments.
cast calldata-decode Decode ABI-encoded input data.
cast pretty-calldata Pretty print calldata.
cast selectors Extracts function selectors and arguments from bytecode
cast upload-signature Upload the given signatures to https://openchain.xyz/signatures.
cast format-bytes32-string Formats a string into bytes32 encoding.
cast from-bin Convert binary data into hex data.
cast from-fixed-point Convert a fixed point number into an integer.
cast from-utf8 Convert UTF8 to hex.
cast from-wei Convert wei into an ETH amount
cast parse-bytes32-address Parses a checksummed address from bytes32 encoding.
cast parse-bytes32-string Parses a string from bytes32 encoding.
cast to-ascii Convert hex data to an ASCII string.
cast to-base Convert a number of one base to another.
cast to-bytes32 Right-pads hex data to 32 bytes.
cast to-dec Converts a number of one base to decimal
cast to-fixed-point Convert an integer into a fixed point number.
cast to-hex Converts a number of one base to another
cast to-hexdata Normalize the input to lowercase, 0x-prefixed hex.
cast to-int256 Convert a number to a hex-encoded int256.
cast to-rlp RLP encodes hex data, or an array of hex data
cast to-uint256 Convert a number to a hex-encoded uint256.
cast to-unit Convert an ETH amount into another unit (ether, gwei, wei).
cast to-wei Convert an ETH amount to wei.
cast shl Perform a left shifting operation.
cast shr Perform a right shifting operation.
cast address-zero Prints the zero address.
cast sig Get the selector for a function.
cast sig-event Generate event signatures from event string.
cast keccak Hash arbitrary data using keccak-256.
cast compute-address Compute the contract address from a given nonce and deployer address.
cast create2 Generate a deterministic contract address using CREATE2
cast interface Generate a Solidity interface from a given ABI.
cast index Compute the storage slot for an entry in a mapping.
cast concat-hex Concatenate hex strings.
cast max-int Get the maximum i256 value.
cast min-int Get the minimum i256 value.
cast max-uint Get the maximum u256 value.
cast to-check-sum-address Convert an address to a checksummed format (EIP-55).
cast wallet Wallet management utilities.
cast wallet new Create a new random keypair.
cast wallet address Convert a private key to an address.
cast wallet sign Sign a message.
cast wallet vanity Generate a vanity address.
cast wallet verify Verify the signature of a message.
-V
--version
Print version info and exit.
-h
--help
Prints help information.
Call a function on a contract:
cast call 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 \ "balanceOf(address)(uint256)" 0x...
Decode raw calldata:
cast calldata-decode "transfer(address,uint256)" \ 0xa9059cbb000000000000000000000000e78388b4ce79068e89bf8aa7f218ef6b9ab0e9d0000000000000000000000000000000000000000000000000008a8e4b1a3d8000
Encode calldata:
cast calldata "someFunc(address,uint256)" 0x... 1
See https://github.com/foundry-rs/foundry/issues for issues.