A comprehensive EVM wallet management skill for executing crypto transactions and network operations using the cast CLI tool.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install cast
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 cast 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 clawcast?
Clawcast is a specialized skill designed for developers and crypto enthusiasts to interact with Ethereum Virtual Machine (EVM) compatible networks. By leveraging the industry-standard cast utility from the Foundry suite, this skill enables AI agents to handle wallet creation, secure keystore management, and complex transaction signing. Whether you are building on Ethereum, BSC, or Polygon, this addition to your Openclaw Skills library provides a robust interface for on-chain interactions.
The skill emphasizes security and user-friendly onboarding, guiding the operator through the process of encrypting keystores and managing network-specific metadata. It acts as a bridge between high-level agent instructions and the low-level precision required for blockchain development, making it an essential component for any crypto-centric Openclaw Skills deployment.
clawcast Use Cases
- Automated onboarding for new EVM wallets via a structured CLI workflow.
- Real-time balance checks and network status monitoring across multiple RPC endpoints.
- Securely signing and broadcasting transactions using encrypted local keystores.
- Managing token metadata and contract interactions for decentralized finance applications.
- Integrating crypto payment workflows into broader Openclaw Skills automation pipelines.
How clawcast Works
- The agent performs an automatic readiness check to detect existing keystores and configuration state.
- Users are guided through a step-by-step onboarding process to install dependencies and configure key material.
- Network configurations and token metadata are sourced from local JSON assets to ensure accurate RPC and ChainID selection.
- The skill utilizes cast commands to fetch balances, estimate gas, and prepare transaction data based on user input.
- Transactions are signed locally and broadcasted to the network, with hashes logged for auditability and future reference.
clawcast Setup
To begin using this skill within your Openclaw Skills environment, execute the onboarding scripts in order:
# Start the installation and wallet setup flow
./scripts/01_install_cast.sh
# Follow the interactive prompts to import or generate your keys
# The agent will guide you through password and network selection
Ensure that you have the necessary permissions to create directories in ~/.agent-wallet/ for secure keystore storage.
clawcast Data Schema & Taxonomy
The skill organizes wallet state and network assets using the following structure:
| Location | Purpose |
|---|---|
~/.agent-wallet/state.env |
Stores the active network, RPC URL, and wallet metadata. |
assets/evm-networks.json |
Authoritative source for chain IDs and primary RPC endpoints. |
assets/evm-network-tokens.json |
Registry of native and ERC-20 tokens supported per network. |
logs/tx_mentions.log |
Workspace audit trail containing transaction hashes and timestamps. |
~/.agent-wallet/keystore/ |
Secure directory for encrypted EVM account files. |
clawcast Advanced Features
- Multi-network support with automated RPC selection from curated asset lists.
- Secure keystore encryption that leverages local password files to avoid manual entry during automated tasks.
- Transaction logging system that automatically records on-chain mentions to a local workspace log for auditing.
- Automatic temporary mnemonic backups with a built-in cleanup mechanism to protect sensitive seed phrases.
- Direct access to the full cast suite, including calldata encoding, 4byte selector lookups, and raw JSON-RPC calls.
SKILL.md
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