Developer Hub

This page provides technical resources for developers and integrators working with the Vara ↔ Ethereum Bridge.
It includes the addresses of deployed smart contracts and on-chain programs on both Ethereum (Holesky testnet) and Vara Testnet.

Use this section to:

• Explore and verify bridge-related contracts
• Begin building integrations with the bridge (e.g. relayers, token managers, custom assets)

warning

⚠️ All listed addresses belong to testnet deployments.

Contract Addresses

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Ethereum (Holesky)

Core

• Verifier: 0x39d633813d1E580b3BF0142c3473746ffBEab064

• Relayer: 0x7bC6DdA67Fa29B09b49e445393f740b73bdB7bB8

• MessageQueue: 0xBA9065362096D1d8Be104fF2f596f0c09e692716

• Bridging Payment: 0xE4644D892Bdb3e39b6699061AEc19Dc9a11F93d0

Token Contracts

• USDC: 0xE800CadDe36487468408Bd9872387f2bBfCb8E1a

• USDT: 0x89309f4cA9F0CB2945823267a61e3BFfA4D19F41

• Tokenized ETH: 0x4A03Bb9E9Ca0277bD5c6fca378D33c72621eCa57

• wVARA: 0x697A0857B3a97c6efaB4904E0361b63CF89ece00

Proxy Contracts

• Relayer Proxy: 0x521030B5F81aFaaa1267748f6A7eE74735a42fc3

• MessageQueue Proxy: 0xE3e5514AC6cAF71560777B9EaD6CaD5f6171D3de

• Relayer Proxy Updater: 0xA5ab0454eC41073CBA7F71cB5B7500B9aF4326bf

• MessageQueue Proxy Updater: 0x55F85F416E6788Cb1348930C67df507F13B1704E

ERC20 Manager

• ERC20Manager: 0xc31BEB6eE13aF6fE7EC10Df40C68DA18219FC6b0

• ERC20Manager Proxy: 0x8Af947a1799B8B5E0eb32568aDBc6eb68DAa7108

• ERC20Manager Proxy Updater: 0xd021582b519ccC6863feD7C5089eCAAf2ff0e32F

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Vara (Testnet)

Core Components

• checkpoint-light-client: 0x90ac9f973e04e1571acc15f370a9ec9882b0478ac773d4adb58ca17052fed04e
git commit: 0a1842ab43bec83b7ec8737db3344b3a06ad7dcc

• eth-events-electra: 0xaaa0cb91a88b20c8ada32f9778d03d3387a89e37494fbf7d8fa2240bcee820da
git commit: 08a8f3fd8d459f2d920f44c33b85e3510717befb

• historical-proxy: 0xb764ed461f78c54b464c8c1b5f35a27017906d78ce0e58c61ca47402cfc89ace
git commit: 08a8f3fd8d459f2d920f44c33b85e3510717befb

• vft-manager: 0x64e42fd0dbcbbf720cae10e0e2068de8c5cd4e935813f1459d2361371b5799c1
git commit: ebe009ad551aba9528912196b28d7bdc435a91e4

Token Contracts

• wUSDC: 0x5135726683e8db9487b7f7b00ffa1a381afb2c7141edfe426eae54fc180dfa66

• wUSDT: 0x3c82058919cc4d9ffe0340eeae337b8b7d7d93a2a9cb8c3a9c2471cebe8ef7fc

• wETH: 0x3cfe71f4d00825924689efed3b96e93869caf0ec30cdb5ad827b18025d981ec7

• Tokenized Vara: 0x2f8669c27904bbac08f0180a0b2a24b0ab3ed6c0ae12c6ffe971b0fe7bd651cd

• Bridging Payment: 0xe8c3797bb190b8c60c409fa2d319103fae0fc31a68884490ff95b3a8dc01ea22

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