README.md

Overview of Cast

Cast is Foundry's command-line tool for performing Ethereum RPC calls. You can make smart contract calls, send transactions, or retrieve any type of chain data - all from your command-line!

How to use Cast

To use Cast, run the cast command followed by a subcommand:

$ cast <subcommand>

Examples

Let's use cast to retrieve the total supply of the DAI token:

{{#include ../output/cast/cast-call:all}}

cast also provides many convenient subcommands, such as for decoding calldata:

{{#include ../output/cast/cast-4byte-decode:all}}

You can also use cast to send arbitrary messages. Here's an example of sending a message between two Anvil accounts.

$ cast send --private-key <Your Private Key> 0x3c44cdddb6a900fa2b585dd299e03d12fa4293bc $(cast from-utf8 "hello world") --rpc-url http://127.0.0.1:8545/

📚 Reference

See the cast Reference for a complete overview of all the available subcommands.