A comprehensive tool to launch a local Anvil testnet forking live chains with pre-deployed Uniswap contracts and multi-token funded accounts.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install setup-local-testnet
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install setup-local-testnet using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Local Testnet Setup for Uniswap?
The setup-local-testnet skill is a foundational tool within the Openclaw Skills ecosystem designed to accelerate the development of decentralized finance applications. It automates the complex process of setting up a local blockchain environment by spinning up an Anvil instance that forks live networks like Ethereum, Base, or Arbitrum. This allows developers and AI agents to work with real-time liquidity and contract states without the latency or costs associated with public testnets.
By utilizing this specific entry in the Openclaw Skills library, users gain access to a pre-configured sandbox environment. This environment comes with 10,000 ETH and millions in stablecoins (USDC, USDT, DAI) already distributed across test accounts, alongside auto-discovered Uniswap V3 factory and router addresses. It serves as the essential first step for any automated DeFi workflow, providing a zero-gas environment for rigorous testing and simulation.
Local Testnet Setup for Uniswap Use Cases
- Creating an instant local development environment for Uniswap-based AI agents.
- Testing complex swap or liquidity provision strategies against real-world pool states.
- Developing and debugging smart contract integrations without spending real gas.
- Forking a specific chain at a precise block number to reproduce historical market conditions.
- Setting up a temporary backend for frontend DeFi application prototyping.
How Local Testnet Setup for Uniswap Works
- The skill first checks for the local availability of Anvil (Foundry) and provides installation instructions if missing.
- It parses user parameters to determine the source chain to fork, such as Ethereum or Base, and the desired block number.
- The tool initiates a local Anvil process, connecting to a remote RPC to download the state of the target network.
- It automatically executes a series of transactions to fund multiple test accounts with ETH and a variety of ERC-20 tokens.
- It identifies and validates the addresses for core Uniswap contracts like the V3Factory and UniversalRouter.
- The skill outputs a detailed connection manifest including the RPC URL, chain ID, account private keys, and discovered pool addresses.
Local Testnet Setup for Uniswap Setup
To use this skill, ensure Foundry is installed on your system. You can install it using the following command:
curl -L https://foundry.paradigm.xyz | bash && foundryup
Once installed, the Openclaw Skills integration will handle the execution of Anvil and port management automatically when the setup command is triggered.
Local Testnet Setup for Uniswap Data Schema & Taxonomy
The skill returns a structured data object containing the following technical details:
| Property | Type | Description |
|---|---|---|
| rpc_url | String | The local endpoint for blockchain interactions |
| chain_id | Integer | The local network identifier (typically 31337) |
| accounts | Array | List of addresses, private keys, and initial balances |
| contracts | Object | Registry of deployed Uniswap V3 and Periphery contract addresses |
| pools | Array | List of high-liquidity pools available from the forked state |
Local Testnet Setup for Uniswap Advanced Features
- Automatic port conflict resolution to ensure the testnet always finds an available local port.
- Multi-chain support allowing forks from Ethereum, Base, Arbitrum, Optimism, and Polygon.
- Optional seed liquidity toggle for users who require a clean, empty environment instead of a seeded one.
- Seamless hand-off to other Openclaw Skills for advanced tasks like time-traveling or custom pool creation.
- Integrated contract discovery that removes the need to manually lookup protocol addresses.
SKILL.md
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