TL;DR
Across Protocol is the MegaETH bridge that users trust for fast, capital-efficient, and secure transfers from Ethereum and other major networks. MegaETH is live on testnet, with mainnet launching soon. While you can’t bridge real assets to MegaETH yet, you can prepare now by exploring the testnet and understanding how bridging will work at launch. Across Protocol will support bridging to MegaETH mainnet from day one.
Introduction
MegaETH is positioned to be one of the most ambitious Ethereum scaling efforts to date. Instead of optimizing primarily for lower fees, MegaETH is designed around latency and throughput, targeting a blockchain experience that feels closer to real-time software than traditional crypto infrastructure.
As interest grows, many users are already asking a simple question: how do I bridge to MegaETH? The answer depends on timing. Right now, MegaETH is in testnet. Mainnet and real asset bridging launch on February 9th. Understanding that distinction is key to navigating the ecosystem safely and effectively.
This guide explains the current state of MegaETH, how to get involved today, and how to bridge there with Across Protocol once mainnet is live.
What Is MegaETH?
MegaETH is an Ethereum Layer 2 designed to push Ethereum scaling far beyond today’s limits. It is built for applications that need extremely fast confirmation and high transaction throughput, while remaining fully EVM-compatible.
MegaETH is built to support:
100,000+ transactions per second.
10+ gigagas per second of execution throughput.
Sub-10 millisecond block times.
Settlement anchored to Ethereum.
This performance-first design is what makes MegaETH especially interesting for real-time applications like high-frequency DeFi, onchain games, and consumer-facing apps that require immediate feedback. These use cases struggle on slower chains.
For users, this means applications that feel responsive rather than transactional. For developers, it means deploying Ethereum contracts without rewriting code, while gaining access to a much faster execution environment.
Current Status: Testnet Now, Mainnet Soon
As of today, MegaETH is live on testnet only. There is no production mainnet and no live bridge for real assets yet.
The purpose of the testnet is to:
Validate MegaETH’s performance assumptions.
Allow developers to deploy and iterate.
Give early users a chance to understand the network before economic activity begins.
Testnet participation is about familiarity and readiness, not moving value.
How to Bridge to MegaETH When Mainnet is Live
Across Protocol will support bridging to MegaETH mainnet from day one.
When MegaETH mainnet launches, bridging will become the primary entry point into the ecosystem. At a high level, the flow will be familiar to anyone who has used Ethereum L2s before:
Connect your wallet.
Select your origin chain and token.
Choose MegaETH as the destination.
Transfer assets in seconds.
Supported tokens will include ETH, WETH, and USDT0 across all of our supported chains.
Once mainnet is live, this guide will be updated with a full, step-by-step walkthrough using Across Protocol.
Across Protocol is the Best MegaETH Bridge
Across Protocol is the MegaETH bridge that users trust for speed, cost-efficiency, and security.
With $35 billion+ in crosschain volume processed for over 2.5 million users, Across provides one of the most battle-tested ways to move money between blockchains. Here’s why users trust Across Protocol:
Fast execution: transfers crypto in seconds.
Low-cost: bridging fees average around a fraction of a dollar.
Security: zero security exploits since launch.
Bridge and swap: any token across major chains in one click.
If you want to bridge to MegaETH at launch, Across guarantees you time-to-liquidity, reliability under load, and predictable execution from 22+ chains including Ethereum, Solana, BNB Smart Chain, and many more.
Using MegaETH Today (Testnet)
While mainnet bridging isn’t available yet, you can still explore MegaETH today through its testnet. This is a great way to understand how it works and get familiar with the ecosystem ahead of launch.
Getting started typically involves:
Adding the MegaETH testnet network to your wallet.
Acquiring testnet ETH from the official faucet.
Interacting with early applications and tooling.
This is the best way to understand how MegaETH behaves before real assets are involved.
Keep in mind that you’ll need to add MegaETH testnet as a custom network in your wallet. MegaETH is EVM-compatible, so wallets like MetaMask support it out of the box via manual network configuration. Official network parameters (RPC endpoint, chain ID, and block explorer) are published in MegaETH’s documentation and may change during testing, so it’s best to reference the latest values directly from the source.
Conclusion
MegaETH is still in testnet, but mainnet is approaching fast. When it launches, bridging will be the primary way to enter the ecosystem, and Across Protocol will support MegaETH from day one.
In the meantime, you can already use Across Protocol to bridge and swap tokens quickly and efficiently across Ethereum and other major chains.
Frequently Asked Questions (FAQ)
Can I bridge to MegaETH today?
No. MegaETH is currently testnet-only. Mainnet bridging will begin after launch.
Will Across Protocol support MegaETH?
Yes. Across will be a day-1 bridge for MegaETH mainnet.
Which wallets are supported?
Any EVM-compatible wallet, including MetaMask, Rabby, Rainbow, and hardware wallets via wallet connectors.
What assets will be supported when MegaETH mainnet launches?
At launch, MegaETH bridging is expected to support ETH and a limited set of core ERC-20 assets. Additional tokens will be added over time as liquidity and ecosystem support expand. Final asset support will be confirmed at mainnet launch.
What bridge options will be available when MegaETH mainnet launches?
Bridge availability will depend on MegaETH’s final mainnet architecture. Some networks launch with a canonical bridge, while others rely on third-party bridges. Across will support MegaETH from day one, providing a fast, capital-efficient option for moving assets into the ecosystem.
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