alchemy-web3

What This Skill Does

The alchemy-web3 skill is a powerful interface designed to connect OpenClaw AI agents directly to the Alchemy blockchain infrastructure. By bridging the gap between natural language processing and high-performance Web3 APIs, this tool allows your agent to perform complex blockchain data retrieval, NFT auditing, and token tracking across more than 80 different blockchain networks. Whether you are analyzing a user's portfolio, verifying transaction history, or looking up ENS domains, this skill provides the production-grade reliability required for serious decentralized application (dApp) development and blockchain analysis.

Installation

To begin, ensure you have the OpenClaw environment properly initialized. First, install the skill using the command clawhub install openclaw/skills/skills/gizmo-dev/alchemy-web3. Once installed, you must register for a free API key at alchemy.com. Store this key in your local configuration file located at ~/.openclaw/.env by defining the ALCHEMY_API_KEY variable. You may also define an ALCHEMY_CHAIN to set a default network preference, such as eth-mainnet or polygon-mainnet. Once configured, the CLI script located at ~/.openclaw/workspace/skills/alchemy-web3/scripts/alchemy.sh handles all requests to the Alchemy endpoints.

Use Cases

This skill is ideal for developers, data analysts, and Web3 enthusiasts. Use it to build automated portfolio trackers that monitor ERC-20 token balances, NFT collections, and recent wallet movements. It is equally useful for smart contract debugging, as it allows for rapid fetching of transaction details and block information. Furthermore, the skill enables developers to resolve human-readable ENS names into wallet addresses automatically, simplifying user interactions within your AI agent's logic flows. Because it supports multi-chain architectures, it is a versatile tool for cross-chain data research.

Example Prompts

1. "Check the current ETH balance and recent token holdings for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on the Ethereum mainnet."
2. "What are all the NFTs owned by vitalik.eth? Please list their names and provide metadata for the first one found."
3. "Show me the transaction history for this wallet address on the Arbitrum chain and identify the most recent transfer."

Tips & Limitations

Always ensure your API key is kept secure and is not hardcoded into public repositories. While Alchemy provides extensive coverage across 80+ chains, ensure that the specific network you are querying is supported by checking their documentation. If you experience timeouts, verify your API key limits in the Alchemy dashboard. This skill is read-only for blockchain state, meaning it cannot sign transactions or move funds, which keeps your assets inherently safe during analysis.