ethereum

What This Skill Does

The Ethereum skill for OpenClaw provides a powerful command-line interface to interact directly with the Ethereum blockchain. It acts as a bridge between the agent and decentralized infrastructure, allowing for real-time querying of wallet balances, token information, and network status. Built upon the robust Foundry 'cast' toolkit, this skill enables users to perform complex blockchain data retrieval tasks—such as ENS lookups, gas price monitoring, and smart contract calls—without requiring a traditional block explorer website.

Installation

To integrate this skill into your OpenClaw environment, ensure you have Foundry installed on your machine. You can install the skill by running the following command in your terminal:

clawhub install openclaw/skills/skills/sakaen736jih/ethereum

Once installed, you can configure your preferred RPC endpoint via the ETH_RPC_URL environment variable to ensure reliable and fast data retrieval. If no RPC is defined, the skill defaults to the provided public LlamaRPC endpoints.

Use Cases

• Portfolio Monitoring: Rapidly check the ETH and ERC-20 token balances for any public wallet address, including support for major stablecoins like USDC and USDT.
• Transaction Verification: Retrieve detailed transaction receipts and status updates using hash lookups.
• Developer Utility: Quickly query smart contract attributes such as total supply, token decimals, and ownership of specific NFTs (ERC-721).
• Network Analysis: Monitor current gas prices to optimize transaction timing or pull recent block data for on-chain state analysis.

Example Prompts

1. "Check the current USDC balance for the address 0x71C7656... and format it with 6 decimals."
2. "What is the current gas price on the Ethereum mainnet in Gwei?"
3. "Resolve the ENS name 'vitalik.eth' to its corresponding hexadecimal wallet address."

Tips & Limitations

• Security: This skill is strictly for read-only interactions with the blockchain. It does not handle private keys or initiate transactions, making it safe for data exploration.
• Precision: When dealing with ERC-20 tokens, always remember to verify the token's decimal precision, as standard 'cast' queries return raw uint256 values.
• RPC Stability: Public RPC endpoints may have rate limits. For production-grade or high-frequency usage, it is recommended to use a dedicated private RPC provider.