An end-to-end development playbook for building high-performance dApps and smart contracts on the MegaETH network.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install megaeth
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 megaeth 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 MegaETH Developer?
MegaETH Developer is a comprehensive technical skill designed for building real-time applications on the MegaETH blockchain. It leverages the unique MegaEVM features, such as sub-10ms transaction receipts via EIP-7966 and optimized storage patterns using Solady libraries. By integrating these Openclaw Skills, developers can efficiently manage wallets, perform token swaps via Kyber Network, and deploy gas-optimized smart contracts. This skill is essential for anyone looking to capitalize on MegaETH high-throughput architecture and stable gas fees. It ensures that developers follow opinionated best practices for RPC batching and WebSocket management, ensuring highly responsive blockchain interactions.
MegaETH Developer Use Cases
- Setting up and managing wallets on MegaETH Mainnet or Testnet.
- Sending high-speed transactions with instant receipts using eth_sendRawTransactionSync.
- Building real-time dApp frontends with React or Next.js and WebSocket streaming.
- Optimizing smart contract storage to avoid expensive SSTORE gas costs.
- Performing cross-chain bridging of ETH from Ethereum to MegaETH.
How MegaETH Developer Works
- The skill identifies the development layer, such as frontend, RPC, or smart contract logic.
- It configures the appropriate network parameters for MegaETH Mainnet (Chain ID 4326) or Testnet (6343).
- For transactions, it prioritizes the EIP-7966 sync method to eliminate receipt polling and reduce latency.
- It applies storage-aware contract patterns using Solady RedBlackTreeLib to minimize gas usage through slot reuse.
- The system establishes robust WebSocket connections with mandatory keepalive pings for real-time mini-block data streaming.
MegaETH Developer Setup
Configure your RPC provider to point to MegaETH and use the following commands for debugging with the official toolset. This configuration ensures compatibility with the latest Openclaw Skills for blockchain automation.
npm install -g mega-evme
mega-evme replay <TX_HASH>
Ensure your environment uses the correct Chain ID (4326 for Mainnet or 6343 for Testnet).
MegaETH Developer Data Schema & Taxonomy
| Data Component | Specification |
|---|---|
| Network Configuration | Maps Chain IDs to RPC endpoints (e.g., https://mainnet.megaeth.com/rpc). |
| Gas Parameters | Fixed base fee of 0.001 gwei; SSTORE 0 to non-zero costs 2M gas. |
| Storage Layout | Utilizes Solady RedBlackTreeLib for slot reuse instead of standard Solidity mappings. |
| WebSocket Protocol | 50 connections per VIP endpoint, 10 subscriptions per connection. |
MegaETH Developer Advanced Features
- Real-time mini-block subscriptions via WebSocket with automated 30s keepalive pings.
- Multi-request batching using Multicall aggregate3 for 2-10x faster RPC calls compared to standard methods.
- Gas profiling and opcode-level tracing using the specialized mega-evme CLI.
- Skip-simulation support for Foundry to streamline deployments on high-throughput environments.
SKILL.md
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