---

draft: false title: "How to Bridge to MegaETH Using Rabbithole" description: "Bridge ETH and stablecoins to MegaETH through Rabbithole. Step-by-step walkthrough of routes, fees, and alternatives." publishedAt: "2026-04-15" updatedAt: "2026-04-15" pillar: "megaeth" primaryKeyword: "bridge to MegaETH" secondaryKeywords:

• "Rabbithole MegaETH"
• "MegaETH bridge"
• "how to bridge to MegaETH" relatedTools:
• slug: "swap" label: "Compare swap rates" relatedArticles:
• slug: "what-is-megaeth" pillar: "megaeth"
• slug: "cap-labs-usdm" pillar: "megaeth"
• slug: "how-to-trade-on-megaeth" pillar: "megaeth" keywords:
• "bridge to MegaETH"
• "Rabbithole MegaETH"
• "MegaETH bridge"
• "how to bridge to MegaETH"
• "Rabbithole portal" author: "bluefoot" sources:
• https://cryptobriefing.com/megaeth-mainnet-launch-rabbithole/
• https://blog.availproject.org/how-to-bridge-to-megaeth-the-fastest-way-in-2026/
• https://rabbithole.megaeth.com
• https://cryptobriefing.com/megaeth-usdc-bridge-launch-250m-usdm-predeposit/
• https://www.coindesk.com/tech/2026/02/09/megaeth-debuts-mainnet-as-ethereum-scaling-debate-heats-up
• https://docs.megaeth.com

---

Rabbithole is MegaETH's official ecosystem portal and the default way to bridge assets onto the chain. It lives at rabbithole.megaeth.com and combines a bridge, a swap interface, and an app directory under one URL. The portal launched alongside MegaETH mainnet on February 9, 2026, with Aori powering intent-based cross-chain routes and the canonical OP Stack bridge handling direct ETH deposits from Ethereum.

What Rabbithole Does

Rabbithole combines three functions that would normally require separate websites. It bridges assets from other chains onto MegaETH, swaps between tokens already on MegaETH, and catalogs live and upcoming applications on the chain. The portal is the first stop for most users coming to MegaETH for the first time.

The bridge tab handles incoming liquidity. Users pick a source chain and asset, choose a destination asset on MegaETH, and submit the transfer in a single flow. The swap tab handles on-chain trades through an aggregator interface. The discovery tab surfaces active protocols like GMX, World Markets, GTE, and the rest of the MegaMafia cohort.

How Rabbithole's Bridge Routes Work

The Rabbithole bridge uses two underlying systems. Aori handles intent-based cross-chain swaps for non-canonical routes, meaning users can start with an asset on one chain and arrive on MegaETH with a different asset in one transaction. The canonical OP Stack Standard Bridge handles direct ETH deposits from Ethereum, which gives users a trust-minimized route that inherits Ethereum security.

Aori is a solver network. When a user submits a bridge intent, solvers compete to fulfill it by locking funds on the destination chain in exchange for receiving the source funds. This design typically settles faster than traditional lock-and-mint bridges because solvers bear the transfer risk. The trade-off is that solver networks introduce counterparty considerations that pure canonical bridges avoid.

Bridging to MegaETH Step by Step

Bridging with Rabbithole follows the same pattern as any modern bridge interface. The specific UI may shift over time, but the core steps stay consistent.

1. Add MegaETH to your wallet. Visit chainlist.org or click the Rabbithole add-network prompt. The portal pushes the correct chain ID and RPC into MetaMask, Rabby, or any other EVM wallet.
2. Connect your wallet on rabbithole.megaeth.com.
3. Select a source chain. Pick the chain holding the asset you want to bridge from.
4. Select source and destination assets. You might bridge ETH on Ethereum to ETH on MegaETH, or ETH on Arbitrum to USDm on MegaETH, depending on the routes available.
5. Enter an amount and review the quoted output.
6. Approve the token if the source asset is an ERC-20 that needs an allowance set.
7. Sign the bridge transaction. The wallet prompts for a single signature that executes the route.
8. Wait for confirmation. Intent-based routes through Aori typically complete in seconds to a few minutes. Canonical OP Stack deposits from Ethereum settle once the deposit transaction is included and finalized.

Users should always verify that the bridge URL is correct before approving any transaction. Bridge phishing is a common attack vector in DeFi and routinely targets portals with high user traffic.

Which Assets to Bridge First

The two assets most users need on MegaETH are ETH and USDm. ETH covers transaction fees on the chain. USDm is MegaETH's native stablecoin and serves as the base collateral for World Markets, the GLV vault on GMX, and most other protocols in the ecosystem.

Bridging a small amount of ETH first is a common approach. Users can then swap a portion to USDm through Rabbithole's swap tab or acquire it through the USDm interface. USDm's gas subsidy mechanism means holding the stablecoin indirectly helps cover sequencer costs for all users. Pre-deposits into USDm opened in November 2025 with a $250 million cap and filled through the chain's launch window.

Alternative Bridges

Rabbithole is not the only route onto MegaETH. Several third-party bridges also support the chain.

Each bridge makes different trade-offs. Intent-based routes prioritize speed and user experience. Canonical bridges prioritize security. The right choice depends on transfer size, source chain, and how quickly the funds need to arrive.

Fees and Transfer Times

Bridge fees on MegaETH break down into three components. The source-chain gas fee covers the initial deposit or swap transaction on the chain you are bridging from. The bridge protocol fee is charged by the intent solver or bridge operator. The destination-chain gas fee covers execution on MegaETH, which is subsidized by USDm yield and typically costs a fraction of a cent.

Ethereum is the highest-cost source chain because L1 gas dominates the total. Bridging from L2s like Arbitrum or Base is cheaper since all three gas legs are low. Stablecoin bridges through Avail Nexus or deBridge often quote fixed-dollar fees that make comparison across source chains easier.

Risks to Understand

For context on bridging in general, including how different bridge architectures compare, our bridging guides cover the broader category. For what to do after funds arrive, our MegaETH trading walkthrough covers wallet setup through first trade. To understand why USDm is the key stablecoin to bridge for, see our Cap Labs and USDm guide. For the full directory of protocols you can use once you have funds on the chain, check our MegaETH ecosystem map or browse all MegaETH guides.