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Orbiter Finance

Orbiter Finance

Orbiter Finance is a decentralized cross-rollup Layer 2 bridge with a contract only on thedestination side and is Ethereum's future multi-rollup infrastructure, the cost is low, and theprocess is instant.

What is Orbiter

Orbiter Finance is a decentralized cross-rollup Layer 2 bridge with a contract only on the

destination side and is Ethereum's future multi-rollup infrastructure.

Features of Orbiter
  • Orbiter offers low gas fees and fast speed.
  • Orbiter is a universal scheme that is available to developers to use.
  • Orbiter builds cross-rollups liquidity schemes

Orbiter Alpha has been launched, supporting cross-rollup transfers between Mainnet, zkSync, and Arbitrum.

In Orbiter Finance, there are two roles they are Sender and Maker. When the Sender initiates a transfer, the Maker provides liquidity for it. The smart contract ensures the security of this process. If the Maker does bad behaviors and the transfer fails, the Sender can initiate an arbitration request to the contract with Maker’s margin and then get the excess compensation.

Why is it cheap to use Orbiter?

Orbiter uses an optimistic mechanism based on the SPV scheme in high frequency transfers without smart contracts. Transfers are performed without a smart contract, keeping the gas fees low enough. The sender starts a cross-rolling transfer through Orbiter, incurring a total of 3 fees.

  1. The gas fee is generated when the environmental transfer is initiated. And Metamask and other wallets collect them.
  2. Withholding fees for transfers in the target environment are paid to the Maker via Orbiter. The withholding fee is a gas fee paid in advance to the Maker for returning assets in the target environment network.
  3. Transaction fees are paid to the Maker via Orbiter. The Maker can customize the transaction fee, and Orbiter sets the initial value to 0.3% of the transfer amount.

Transfer cost


February 28, 2022
Orbiter Finance now supports StarkNet on Goerli
February 14, 2022
Orbiter Finance is live on zkSync wallet


Further Resources


Besides being cheap and fast, how about the Security of Orbiter's cross-rollup mechanism?



February 7, 2022

GitHub - OrbiterCross/OrbiterFE-V2


Orbiter Finance -- Cross-rollup transactions without gas fee or withdraw time



May 31, 2021

Orbiter-Arbitrum to zkSync


December 24, 2021


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