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EVM crypto operations via Foundry cast CLI. Check balances, send ETH/tokens, call contracts. Used by the agent to pay for services like prepaid cards.

By Layr-Labs schedule Updated 3/4/2026

play_arrow Run Skill in Manus View GitHub

name: cast description: EVM crypto operations via Foundry cast CLI. Check balances, send ETH/tokens, call contracts. Used by the agent to pay for services like prepaid cards.

Cast Skill

Provides blockchain operations via Foundry's cast CLI.

Available Tools

eth_balance - Check ETH balance of any address
send_eth - Send ETH to an address
erc20_balance - Check ERC-20 token balance
gas_price - Get current gas price
chain_id - Get current chain ID
block_number - Get latest block number
get_wallet_address - Get the agent's wallet address

Requirements

Foundry must be installed (cast CLI available in PATH)
PRIVATE_KEY environment variable set for sending transactions

Install via CLI

npx skills add https://github.com/Layr-Labs/agent-kit-templates --skill cast

Repository Details

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article Path SKILL.md