How to bridge from Arbitrum to Robinhood Chain

If your ETH already sits on Arbitrum One, you are starting a move to Robinhood Chain from a very convenient position. Both networks are Ethereum L2s, both use ETH as the gas asset, and the transaction that kicks off the transfer is paid in cheap L2 gas instead of mainnet gas. This guide covers the routes available, the exact steps, and the checks that keep the whole trip uneventful.

Why Arbitrum is a cheap starting point

Robinhood Chain is an Ethereum L2 built on the Arbitrum Orbit stack, with chain ID 4663 and ETH as its native gas asset. When you bridge in from Ethereum mainnet, the deposit transaction is a mainnet transaction, and you pay mainnet gas for it. When you bridge in from Arbitrum One, the transaction that starts the transfer executes on Arbitrum, where fees are a fraction of mainnet costs. The asset being moved is the same ETH either way; the difference is what you pay to set the move in motion.

There is also a family resemblance working in your favor. Robinhood Chain runs the same Nitro technology that powers Arbitrum One, and the official Arbitrum bridge portal supports the pair directly, so you are not stitching together tooling from two unrelated ecosystems.

The two kinds of route

There are two ways to move value between L2s, and it helps to know which one you are using before you click anything.

• The canonical path runs through Ethereum. Robinhood Chain's canonical bridge is the official Arbitrum bridge, and deposits from Ethereum typically land in about 10 minutes. But going from one L2 to another through the canonical machinery means first exiting the source chain, and canonical exits from an optimistic rollup carry a challenge window of roughly 7 days. For an Arbitrum One to Robinhood Chain move, that makes the pure canonical round trip slow.
• Fast bridges solve the waiting problem with liquidity. A provider fronts you the funds on the destination chain within minutes and charges a small fee for the service, then settles the slow leg on its own time. Robinhood's official docs name LI.FI, Relay, Across, Stargate, and Chainlink CCIP as partner bridges. For L2-to-L2 moves like this one, a fast route is usually what you want.

Where to start: the official portal

The canonical entry point is the Arbitrum bridge portal at portal.arbitrum.io/bridge, which lists Robinhood Chain as a destination and lets you pick your source chain, so the Arbitrum One to Robinhood Chain pair is selectable in the interface itself. The partner bridges above each have their own frontends too, and aggregators like LI.FI will quote several routes at once and show you the fee and arrival estimate for each.

One warning worth repeating before any links get clicked: fake bridge sites imitating Robinhood branding exist. Always reach a bridge through the links published in the official docs at docs.robinhood.com/chain/ rather than through search results or links pasted in chat groups.

Step by step

1. Add Robinhood Chain to your wallet. Any injected EVM wallet works once chain 4663 is added. Most apps on the chain, including Splitshot, prompt the add-and-switch automatically, so you rarely have to type RPC details by hand. If you prefer doing it manually, the RPC endpoint is https://rpc.mainnet.chain.robinhood.com and the chain ID is 4663 (0x1237 in hex).
2. Open the bridge from the official docs. Follow the bridging links at docs.robinhood.com/chain/ to reach the Arbitrum portal or a partner bridge.
3. Select the pair. Source: Arbitrum One. Destination: Robinhood Chain. Asset: ETH.
4. Read the quote before confirming. A good quote tells you three things: the fee, the estimated arrival time, and the minimum amount you will receive on the destination. If any of the three is missing or looks off, stop and re-check which site you are on.
5. Start small the first time. Send a test amount first, confirm it arrives, then move the rest. The extra transaction costs very little on an L2 and buys real peace of mind.
6. Confirm in your wallet. The transaction executes on Arbitrum One and is paid in Arbitrum gas.
7. Wait for arrival. Fast routes typically complete in minutes. The bridge interface will show progress, and most provide a link to the destination transaction.
8. Verify on the destination. Check your address on the Robinhood Chain explorer at robinhoodchain.blockscout.com and confirm the balance shows up in your wallet once it is switched to chain 4663.

Checks that catch the common mistakes

• Confirm the chain ID. The network your wallet adds should show chain ID 4663. If a prompt shows anything else, reject it.
• You are sending to yourself. For a standard bridge transfer, the destination address is your own address on the new chain. On EVM chains the same private key controls the same address everywhere, so the address should match the one you already use on Arbitrum. If a site asks you to send funds to a deposit address that is not yours, treat that as a red flag.
• Keep gas headroom on both sides. Leave a little ETH on Arbitrum in case you need to transact there again, and remember the bridged ETH itself is your gas on Robinhood Chain. Fees there are small, typically well under a few cents per transaction as of July 2026, so a tiny buffer goes a long way.
• Verify the arrival transaction. The explorer guide walks through reading a transaction on Blockscout if you want to see exactly what landed.

After you land

Once the ETH arrives on chain 4663, you are ready to trade. The swap walkthrough covers a first swap end to end, the price hub lists every token with a funded pool on the chain, and the gas guide shows what transactions actually cost once you are here. If you are arriving from somewhere other than Arbitrum, the broader roundup of ways to get ETH on Robinhood Chain covers the other routes.