EigenLayer is a protocol built on Ethereum that introduces Restaking, a primitive for app and service builders to make verifiable commitments to their users.
EigenLayer brings together Restakers, Operators, and Autonomous Verifiable Services (AVSs) to extend Ethereum's cryptoeconomic security with penalty and reward commitments (like slashing) on staked assets acting as security. The protocol supports permissionless security; EIGEN, Native ETH, LSTs, and ERC-20s.
The deployments on mainnet, base, sepolia, hoodi, and base sepolia are on the below versions:
| Environment | Version | Core Protocol Deployed | Supports Native Restaking | Supports Multichain |
|---|---|---|---|---|
| Mainnet Ethereum | v1.13.0 |
Yes | Yes | Yes (source & destination) |
| Base | v1.9.0 |
No | No | Yes (destination) |
| Testnet Sepolia | v1.12.1 |
Yes | No | Yes (source & destination) |
| Testnet Hoodi | v1.11.0 |
Yes | Yes | No |
| Testnet Base Sepolia | v1.9.0 |
No | No | Yes (destination) |
Mainnet Ethereum
Anyone can deploy and whitelist strategies for standard ERC20s by using the StrategyFactory deployed to the address below (see docs). Strategies deployed from the StrategyFactory are deployed using the beacon proxy pattern:
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
StrategyFactory |
0x5e4C39Ad7A3E881585e383dB9827EB4811f6F647 |
0xbbc4...2b76 |
Proxy: TUP@4.7.1 |
StrategyBase |
0x0ed6703C298d28aE0878d1b28e88cA87F9662fE9 |
0x8F6b...1Ce |
- Beacon: BeaconProxy - Strategies: UpgradeableBeacon |
DurationVaultStrategy |
0x0fCE0A591D96BB76883323eF555867111E2050a9 |
0xc946...8903 |
- Beacon: BeaconProxy - Strategies: UpgradeableBeacon |
The following strategies were originally deployed and whitelisted outside of the StrategyFactory:
The following strategies differ significantly from the other strategies deployed/used above:
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
EigenStrategy (EIGEN) |
0xaCB55C530Acdb2849e6d4f36992Cd8c9D50ED8F7 |
0x509A...8f40 |
Proxy: TUP@4.9.0 |
Beacon Chain ETH |
0xbeaC0eeEeeeeEEeEeEEEEeeEEeEeeeEeeEEBEaC0 |
- | - Used for Beacon Chain ETH shares - Not a real contract! |
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
EigenPod (beacon) |
0x5a2a4F2F3C18f09179B6703e63D9eDD165909073 |
0x53cC...e868 |
- Beacon: BeaconProxy - Pods: UpgradeableBeacon |
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
Eigen |
0xec53bf9167f50cdeb3ae105f56099aaab9061f83 |
0x2C4A...2E50 |
Proxy: TUP@4.9.0 |
Backing Eigen |
0x83E9115d334D248Ce39a6f36144aEaB5b3456e75 |
0xF2b2...9b17 |
Proxy: TUP@4.9.0 |
SignedDistributor |
- | 0x035b...ad02 |
- |
The following contracts are used by AVSs.
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
ReleaseManager |
0xeDA3CAd031c0cf367cF3f517Ee0DC98F9bA80C8F |
0xD0cb...13bd |
Proxy: TUP@4.9.0 |
TaskMailbox |
0x132b466d9d5723531F68797519DfED701aC2C749 |
0xA2A9...c55e |
Proxy: TUP@4.9.0 |
The multichain protocol expects AVSs to register on the source chain. AVS's stakes are then transported to supported destination chains. For the mainnet Ethereum network, the destination chains include Base.
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
CrossChainRegistry |
0x9376A5863F2193cdE13e1aB7c678F22554E2Ea2b |
0xdc23...642C |
Proxy: TUP@4.9.0 |
KeyRegistrar |
0x54f4bC6bDEbe479173a2bbDc31dD7178408A57A4 |
0x0f93...C219 |
Proxy: TUP@4.9.0 |
Base
Note: Base only supports verification of tasks from stake that lives on Mainnet Ethereum. Standard core protocol functionality (restaking, slashing) does not exist on Base.
The following contracts are used by AVSs.
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
TaskMailbox |
0x132b466d9d5723531F68797519DfED701aC2C749 |
0x6eD2...c1bd |
Proxy: TUP@4.9.0 |
Testnet Sepolia
You can view the deployed contract addresses below, or check out the code itself on the testnet-sepolia branch.
Anyone can deploy and whitelist strategies for standard ERC20s by using the StrategyFactory deployed to the address below (see docs). Strategies deployed from the StrategyFactory are deployed using the beacon proxy pattern:
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
StrategyFactory |
0x066cF95c1bf0927124DFB8B02B401bc23A79730D |
0x3f98...c5Ac |
Proxy: TUP@4.9.0 |
StrategyBase |
0x427e627Bc7E83cac0f84337d3Ad94230C32697D3 |
0x8f31...5cEf |
- Beacon: BeaconProxy - Strategies: UpgradeableBeacon |
StETH Strategy |
0x8b29d91e67b013e855EaFe0ad704aC4Ab086a574 |
0x8f31...5cEf |
Strategy Factory deployed |
WETH Strategy |
0x424246eF71b01ee33aA33aC590fd9a0855F5eFbc |
0x8f31...5cEf |
Strategy Factory deployed |
The following strategies differ significantly from the other strategies deployed/used above:
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
EigenStrategy (EIGEN) |
0x8E93249a6C37a32024756aaBd813E6139b17D1d5 |
0xE8E4...7afC |
Proxy: TUP@4.9.0 |
Beacon Chain ETH |
0xbeaC0eeEeeeeEEeEeEEEEeeEEeEeeeEeeEEBEaC0 |
- | - Used for Beacon Chain ETH shares - Not a real contract! |
NOTE: Due to the permissioned validator set on Sepolia, all EigenPod functionality is PAUSED.
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
EigenPod (beacon) |
0x0e19E56E41D42137d00dD4f51EC2F613E50cAcf4 |
0xb1B6...B533 |
- Beacon: BeaconProxy - Pods: UpgradeableBeacon |
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
Eigen |
0x0011FA2c512063C495f77296Af8d195F33A8Dd38 |
0x7ec6...BD6F |
Proxy: TUP@4.9.0 |
Backing Eigen |
0xc5B857A92245f64e9D90cCc5b096Db82eB77eB5c |
0x1298...3173 |
Proxy: TUP@4.9.0 |
The following contracts are used by AVSs.
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
ReleaseManager |
0x59c8D715DCa616e032B744a753C017c9f3E16bf4 |
0x67cE...2ac6 |
Proxy: TUP@4.9.0 |
TaskMailbox |
0xB99CC53e8db7018f557606C2a5B066527bF96b26 |
0x49A8...5AdB |
Proxy: TUP@4.9.0 |
The multichain protocol expects AVSs to register on the source chain. AVS's stakes are then transported to supported destination chains. For the sepolia network, the destination chains are sepolia and base-sepolia.
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
CrossChainRegistry |
0x287381B1570d9048c4B4C7EC94d21dDb8Aa1352a |
0x4a93...3084 |
Proxy: TUP@4.9.0 |
Testnet Hoodi
You can view the deployed contract addresses below, or check out the code itself on the testnet-hoodi branch.
Anyone can deploy and whitelist strategies for standard ERC20s by using the StrategyFactory deployed to the address below (see docs). Strategies deployed from the StrategyFactory are deployed using the beacon proxy pattern:
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
StrategyFactory |
0xfB7d94501E4d4ACC264833Ef4ede70a11517422B |
0x0d82...A3f3 |
Proxy: TUP@4.9.0 |
StrategyBase |
0x6d28cEC1659BC3a9BC814c3EFc1412878B406579 |
0xa621...063A |
- Beacon: BeaconProxy - Strategies: UpgradeableBeacon |
StETH Strategy |
0xf8a1a66130d614c7360e868576d5e59203475fe0 |
0xa621...063A |
Strategy Factory deployed |
WETH Strategy |
0x24579aD4fe83aC53546E5c2D3dF5F85D6383420d |
0xa621...063A |
Strategy Factory deployed |
The following strategies differ significantly from the other strategies deployed/used above:
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
EigenStrategy (EIGEN) |
0xB27b10291DBFE6576d17afF3e251c954Ae14f1D3 |
0xd318...caE8 |
Proxy: TUP@4.9.0 |
Beacon Chain ETH |
0xbeaC0eeEeeeeEEeEeEEEEeeEEeEeeeEeeEEBEaC0 |
- | - Used for Beacon Chain ETH shares - Not a real contract! |
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
EigenPod (beacon) |
0x5e1577f8efB21b229cD5Eb4C5Aa3d6C4b228f650 |
0x49A8...5AdB |
- Beacon: BeaconProxy - Pods: UpgradeableBeacon |
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
Eigen |
0x8ae2520954db7D80D66835cB71E692835bbA45bf |
0x68F3...2FE9 |
Proxy: TUP@4.9.0 |
Backing Eigen |
0x6e60888132Cc7e637488379B4B40c42b3751f63a |
0x43e4...1C4 |
Proxy: TUP@4.9.0 |
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
PauserRegistry |
- | 0x64D7...c13D |
|
OZ: TimelockController |
- | 0xE332...2d15 |
|
OZ: Proxy Admin |
- | 0xE7f4...2257 |
Testnet Base Sepolia
Note: Testnet Base Sepolia only supports verification of tasks from stake that lives on Sepolia. Standard core protocol functionality (restaking, slashing) does not exist on Base Sepolia.
The following contracts are used by AVSs.
| Name | Proxy | Implementation | Notes |
|---|---|---|---|
TaskMailbox |
0xB99CC53e8db7018f557606C2a5B066527bF96b26 |
0x46CF...16db |
Proxy: TUP@4.9.0 |
Branches we use:
main: The canonical, most up-to-date branch, containing the work-in-progress code for upcoming releasesVx.y.z: Release branch with versionx.y.zthat matches a release of EigenLayer, release branch is always cut frommainvia cherry-pickingrelease-dev/xxx: A development branch for a large feature to be released, the branch should eventually be deleted after merge tomain
Our documentation is a great place to start to understand EigenLayer and the Eigen ecosystem. If you are an audio/visual learner, check out the "You Could've Invented EigenLayer" video.
To understand more about how our ecosystem and its participants work, checkout the guides below. These are split out by who you are: AVS developers, restakers and Operators. All have different roles and interactioons with EigenLayer:
The most up-to-date and technical documentation on our core contracts can be found in /docs. If you're a shadowy super coder, this is a great place to get an overview of the contracts before diving into the code.
To learn more about interfacing with the EigenLayer core contracts onchain, see our middleware repo.
To get an idea of how users interact with these contracts, check out our integration tests: /src/test/integration.
See CONTRIBUTING.
Contributions that do not follow our fork base PR practices will be either rejected or immediately deleted based on your role, preventing branch pollution, keeping our repository clean, make it more readable and searchable.