MegaETH RPC Endpoint

Flat-rate MegaETH RPC provider and MegaETH RPC node access: free tier, no KYC, HTTP & WebSocket. MegaETH mainnet chain ID 4326.

MegaETH is an Ethereum layer 2 built for real-time execution, using ETH for gas. Its sequencer streams results in mini-blocks roughly every 10 ms and seals standard EVM blocks about once per second.

About MegaETH

MegaETH's mainnet first went live in November 2025 and opened to the public in February 2026; the MEGA token launched on April 30, 2026. L2BEAT classifies it as an OP Stack optimium that uses EigenDA for data availability and a hybrid Kailua proof system, with a single centralized sequencer.

The chain is EVM-compatible, so existing Solidity contracts and tooling work. The key RPC difference is the Realtime API: reads such as eth_call, eth_getBalance and eth_getTransactionReceipt reflect the latest mini-block rather than the last EVM block, and eth_sendRawTransactionSync (EIP-7966) returns a receipt in the same call instead of requiring polling.

Common Use Cases on MegaETH

• Low-latency trading and order books
• Real-time onchain games
• High-frequency DeFi
• Apps needing immediate transaction receipts

MegaETH Mainnet RPC URL (HTTP)

MegaETH WebSocket RPC URL

Quick Start: Connect to MegaETH

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/megaeth?key=YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

ethers.js

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider(
  "https://rpc.swiftnodes.io/rpc/megaeth?key=YOUR_API_KEY"
);

const blockNumber = await provider.getBlockNumber();
console.log("MegaETH block:", blockNumber);

viem

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://rpc.swiftnodes.io/rpc/megaeth?key=YOUR_API_KEY"),
});

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://rpc.swiftnodes.io/rpc/megaeth?key=YOUR_API_KEY"))
print("MegaETH block:", w3.eth.block_number)

Add MegaETH to MetaMask

Features of SwiftNodes for MegaETH

• Load-balanced across multiple upstream nodes wherever a chain has more than one, with automatic failover
• Health-checked every 2 minutes with automatic failover
• Free tier available — no credit card or KYC required
• Flat-rate monthly pricing with no per-request fees
• HTTP and WebSocket support
• One API key works across all 75+ supported chains, including MegaETH

Rate Limits

Frequently Asked Questions: MegaETH

MegaETH RPC methods

Measured weekly through this endpoint: what each method returns on MegaETH, its limits, and an example request.

• eth_blockNumbersupported
• eth_chainIdsupported
• eth_getBalancesupported
• eth_getBlockByNumbersupported
• eth_getTransactionByHashsupported
• eth_getTransactionReceiptsupported
• eth_callsupported
• eth_estimateGassupported
• eth_gasPricesupported
• eth_maxPriorityFeePerGassupported
• eth_sendRawTransactionsupported
• eth_getTransactionCountsupported
• eth_getCodesupported
• eth_subscribesupported
• eth_getLogssupported
• eth_getBlockReceiptssupported
• eth_feeHistorysupported
• eth_getProofnot available
• eth_createAccessListsupported
• debug_traceCallsupported
• trace_blocksupported
• trace_transactionsupported

MegaETH guides from the blog

• MegaETH RPC: A Developer's Guide (Chain ID 4326)MegaETH runs 1 s EVM blocks over ~10 ms mini-blocks. Measured: a 10-billion gas limit, transfers estimating 63,349 gas, a bogus eth_feeHistory oldestBlock, ~32 min to finalized, and what works over standard RPC.

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