Meganode Skill
by @aiden-cao
Provides NodeReal MegaNode blockchain infrastructure APIs for 25+ chains including BSC, Ethereum, opBNB, Optimism, Polygon, Arbitrum, and Klaytn. Covers stan...
π Tips & Best Practices
RPC Best Practices
Use HTTPS for standard queries; WSS only for real-time subscriptions
Implement exponential backoff on rate limit errors (code -32005)
Batch multiple calls when possible (max 500 per batch)
Cache eth_blockNumber results -- block time is ~3s on BSC, ~12s on EthereumCompute Unit Management
Monitor CU usage via the MegaNode dashboard or Portal API
Use lower-cost methods when possible (e.g., eth_getBalance at 15 CU vs eth_call at 20 CU)
Avoid expensive debug/trace methods in production hot paths
WebSocket bandwidth is billed at 0.04 CU/byte -- filter subscriptions tightly
See references/pricing-reference.md for full CU cost tables and plan comparisonSecurity Best Practices
Store API keys in environment variables, never in source code
Never expose API keys in client-side JavaScript
Use JWT authentication for production deployments
Never handle private keys directly -- use wallet signers (ethers.js Wallet, viem Account)Error Handling
Rate limit exceeded: -32005 -- implement backoff and retry
Out of CUs: -32005 with message "ran out of cu" -- upgrade plan or wait for monthly reset
Method not supported: Check references/supported-chains.md for chain-specific method availability
clawhub install meganode-skill
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