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megaeth

Implement MegaETH real-time blockchain applications with instant receipts, gas optimization, and delegations.

1|1|Updated May 21, 2026
Search Tags:#viem#gas optimization#evm#megaeth#blockchain development#erc-7710#eth_sendrawtransactionsync
One-click install
npx skills add https://github.com/naruto11eth/cryptoskills --skill megaeth-naruto11eth
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: megaeth
Source: https://github.com/naruto11eth/cryptoskills/tree/main/skills/megaeth
Command: npx skills add https://github.com/naruto11eth/cryptoskills --skill megaeth-naruto11eth

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? AI agents and developers routinely apply standard Ethereum assumptions to MegaETH that are wrong: 21,000 intrinsic gas (actually 60,000), polling for receipts (instead of sub-10ms synchronous receipts), local gas simulation (MegaEVM opcode costs differ), and dynamic storage mappings (new slots cost 2M+ gas). This Skill provides verified chain configuration, RPC methods, gas model details, and contract patterns specific to MegaETH mainnet (chain ID 4326) and testnet. ## Core Features & Use Cases - Real-time transaction patterns: Use eth_sendRawTransactionSync (EIP-7966) for receipts in under 10ms, mini-block WebSocket subscriptions, and nonce pipelining for latency-sensitive apps. - Gas and storage optimization: Apply the dual gas model, SSTORE bucket multipliers, RedBlackTreeLib slot reuse, transient storage (EIP-1153), and SSTORE2 bytecode storage to avoid 2M+ gas per new slot. - Protocol integrations: Register and resolve MegaNames (.mega) domains, build ERC-7710 scoped delegations with caveat enforcers, host on-chain sites via Warren, and create MetaMask smart accounts. - Use Case: Deploy a Foundry contract to MegaETH with correct gas limits (--skip-simulation), wire a viem client with the correct chain definition, and submit transactions with instant receipts instead of polling. ## Quick Start Set up a viem client for MegaETH mainnet and send a transaction using eth_sendRawTransactionSync with 60,000 intrinsic gas and a fixed 0.001 gwei fee.

Frequently Asked Questions about megaeth

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I get instant transaction receipts on MegaETH?▼

Use eth_sendRawTransactionSync (EIP-7966) with a pre-signed transaction to receive a full receipt in under 10ms instead of polling. MegaETH also supports the equivalent realtime_sendRawTransaction method, but the EIP-7966 variant is preferred for cross-chain compatibility.

Why is my MegaETH transaction failing with intrinsic gas too low?▼

MegaETH intrinsic gas is 60,000 (21K compute plus 39K storage), not Ethereum's 21,000. Local simulation in Foundry or Hardhat uses standard EVM costs, so deploy with --skip-simulation and an explicit gas limit, or use remote eth_estimateGas.

How do I reduce storage gas costs on MegaETH?▼

New storage slots cost 2M+ gas scaled by a bucket multiplier. Reuse slots with Solady RedBlackTreeLib or circular buffers, use transient storage (EIP-1153) for temporary data, and store large immutable data as bytecode with SSTORE2 where reads are free.

What is the MegaETH chain ID and RPC endpoint for viem?▼

Mainnet uses chain ID 4326 with RPC https://mainnet.megaeth.com/rpc, and testnet uses chain ID 6343 with https://carrot.megaeth.com/rpc. Define them with viem's defineChain and set maxFeePerGas to 1000000 wei (0.001 gwei fixed base fee).

How do ERC-7710 delegations work on MegaETH?▼

Create scoped, revocable permissions with @metamask/smart-accounts-kit by building a delegation with caveat enforcers (spending limits, timestamps, call limits), signing it off-chain, and redeeming on-chain through the DelegationManager contract. Redeem with eth_sendRawTransactionSync for instant confirmation.

Why should I avoid via_ir in foundry.toml on MegaETH?▼

Enabling via_ir=true silently breaks return values, causing functions to return 0 with no compiler error. Use optimizer=true with optimizer_runs=200 instead for safe compilation targeting MegaEVM.

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