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Bridge with OP Standard

The OP Standard Bridge is an optional fast path between Ethereum and the five OP-stack L2s: Base, Optimism, Unichain, Soneium, and Ink. It handles ETH, WETH, and listed ERC-20s at native L2 speeds.

Withdrawals take ~7 days

Deposits (Ethereum → L2) arrive within minutes. Withdrawals (L2 → Ethereum) initiate immediately, but funds arrive on Ethereum only after the OP Stack's prove + finalize cycle (~7 days). This is a security feature of the OP Stack, not a SkyBridge limitation.

Supported chains​

Ethereum ↔ Base · Ethereum ↔ Optimism · Ethereum ↔ Unichain · Ethereum ↔ Soneium · Ethereum ↔ Ink

Arbitrum One is not an OP-stack chain and is not supported on this rail. For native ETH into Arbitrum One or Robinhood Chain, use Bridge Arbitrum ETH; for ERC-20s or NFTs on Arbitrum, use CCIP.

What you need​

  • ETH, WETH, or a listed ERC-20 in your wallet
  • Native ETH for the flat EntryPoint fee on Ethereum

Step-by-step​

1. Connect your wallet​

  1. Open the SkyBridge app.
  2. Click Connect and complete the wallet connection.

2. Select Ethereum as source (or destination)​

  1. Set the source chain to Ethereum and the destination to one of the five OP-stack L2s, or vice versa.
  2. The app will offer OP Standard as a route option where available.

3. Select your token​

Choose ETH, WETH, or a listed ERC-20. If you want to bridge a custom ERC-20 that is not listed, use CCIP instead - it supports any token.

4. Enter the amount​

The interface shows the flat EntryPoint fee and the estimated destination amount.

5. Confirm and bridge​

  1. Review the transfer details and click Bridge.
  2. Sign the transaction in your wallet.

6. Track your transfer​

Deposits (Ethereum → L2) typically arrive within a few minutes. Withdrawals (L2 → Ethereum) have a ~7-day finalization period: the withdrawal initiates immediately, but funds appear on Ethereum only after the OP Stack's prove + finalize cycle completes - check the Activity panel for status.

Notes​

  • This rail does not support NFTs via OP Standard; use CCIP for NFT bridging.
  • If your token is not listed for OP Standard, the app will automatically offer CCIP as an alternative.