ether.fi website screenshot

ether.fi

ether.fi is a non-custodial, decentralized Ethereum liquid restaking protocol where stakers retain control of their validator keys. Users deposit ETH to mint eETH, a rebasing liquid restaking token (LRT), or wrap it into weETH, the non-rebasing ERC-20 used across DeFi and bridged cross-chain via LayerZero to networks including Arbitrum, Optimism, Base, Linea, Mode, Scroll, BNB Chain, Blast, Mantle, and Solana. Beyond ETH liquid restaking, ether.fi has expanded into eBTC (Bitcoin restaking) and eUSD (stablecoin restaking), Liquid auto- balancing strategy vaults, the ether.fi Cash non-custodial credit card with cashback, "The Club" membership tier program, and an AVS operator stack that runs services on EigenLayer, Symbiotic, and Karak. The protocol is governed by the ETHFI token via governance.ether.fi. ether.fi has no public REST API or developer SDK — its public surface is on-chain: open-source Solidity smart contracts on Ethereum mainnet (eETH, weETH, LiquidityPool, EtherFiNodesManager, EtherFiOracle, MembershipManager, ETHFI), cross-chain bridge contracts (weETH-cross-chain via LayerZero, ETHFI via Wormhole NTT), AVS operator contracts, plus operator tooling (etherfi-avs-operator, eigenpod-proofs-generation) and a public subgraph indexing protocol events. ether.fi is one of the largest LRT protocols by TVL with deep integrations across Aave, Pendle, Gearbox, Morpho, and other DeFi venues.

ether.fi is profiled on the APIs.io network. Tagged areas include Ethereum, Liquid Restaking, Liquid Staking, Restaking, and LRT.

ether.fi’s developer surface includes documentation, engineering blog, and 23 more developer resources.

10.5/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs 20 Features
EthereumLiquid RestakingLiquid StakingRestakingLRTEigenLayerSymbioticKarakDeFiSmart ContractseETHweETHeBTCeUSDETHFIAVSLayerZeroCross-ChainCash CardLiquid VaultsOpen Source

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 10.5/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 3.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/etherfi: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Features 20

Notable capabilities this provider offers.

Non-custodial Ethereum liquid restaking — stakers retain validator keys
eETH rebasing liquid restaking token (LRT)
weETH non-rebasing ERC-20 wrapped version of eETH used across DeFi
eBTC Bitcoin restaking token
eUSD stablecoin restaking token
Liquid auto-balancing strategy vaults
ether.fi Cash non-custodial Visa credit card with cashback
The Club tiered membership and financial services program
Native restaking integration with EigenLayer, Symbiotic, and Karak
AVS operator infrastructure (etherfi-avs-operator) running services on top of restaked ETH
Cross-chain weETH via LayerZero on Arbitrum, Optimism, Base, Linea, Mode, Scroll, BNB Chain, Blast, Mantle, Solana
ETHFI governance token (cross-chain via Wormhole NTT)
Membership NFTs and loyalty points program
Distributed Validator Technology (DVT) via SSV Network
EigenPod proof generation tooling (Go)
EtherFiOracle off-chain oracle for validator state and rewards
Public subgraph indexing protocol contract events
Deep DeFi integrations with Aave, Pendle, Gearbox, Morpho, Curve, Balancer, Uniswap
Audited by CertiK, Certora, Hats Finance, Nethermind, Omniscia, Solidified
Open-source under MIT license on GitHub (etherfi-protocol)

Scroll for all 20

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Etherfi Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 2

Reference material describing how the API behaves

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Company 4

The organization behind the API

Other 14

Properties that don't map to a standard resource type

Scroll for all 14

Source (apis.yml)

apis.yml Raw ↑
aid: etherfi
name: ether.fi
description: 'ether.fi is a non-custodial, decentralized Ethereum liquid restaking protocol where stakers retain control of
  their validator keys. Users deposit ETH to mint eETH, a rebasing liquid restaking token (LRT), or wrap it into weETH, the
  non-rebasing ERC-20 used across DeFi and bridged cross-chain via LayerZero to networks including Arbitrum, Optimism, Base,
  Linea, Mode, Scroll, BNB Chain, Blast, Mantle, and Solana. Beyond ETH liquid restaking, ether.fi has expanded into eBTC
  (Bitcoin restaking) and eUSD (stablecoin restaking), Liquid auto- balancing strategy vaults, the ether.fi Cash non-custodial
  credit card with cashback, "The Club" membership tier program, and an AVS operator stack that runs services on EigenLayer,
  Symbiotic, and Karak. The protocol is governed by the ETHFI token via governance.ether.fi. ether.fi has no public REST API
  or developer SDK — its public surface is on-chain: open-source Solidity smart contracts on Ethereum mainnet (eETH, weETH,
  LiquidityPool, EtherFiNodesManager, EtherFiOracle, MembershipManager, ETHFI), cross-chain bridge contracts (weETH-cross-chain
  via LayerZero, ETHFI via Wormhole NTT), AVS operator contracts, plus operator tooling (etherfi-avs-operator, eigenpod-proofs-generation)
  and a public subgraph indexing protocol events. ether.fi is one of the largest LRT protocols by TVL with deep integrations
  across Aave, Pendle, Gearbox, Morpho, and other DeFi venues.'
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/etherfi.png
tags:
- Ethereum
- Liquid Restaking
- Liquid Staking
- Restaking
- LRT
- EigenLayer
- Symbiotic
- Karak
- DeFi
- Smart Contracts
- eETH
- weETH
- eBTC
- eUSD
- ETHFI
- AVS
- LayerZero
- Cross-Chain
- Cash Card
- Liquid Vaults
- Open Source
url: https://raw.githubusercontent.com/api-evangelist/etherfi/refs/heads/main/apis.yml
created: '2026-05-24'
modified: '2026-05-24'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/etherfi-domain-security.yml
- type: Website
  url: https://www.ether.fi
- type: App
  url: https://app.ether.fi
- type: Stake
  url: https://www.ether.fi/stake
- type: Restake
  url: https://www.ether.fi/restake
- type: Liquid
  url: https://www.ether.fi/liquid
- type: Cash
  url: https://www.ether.fi/cash
- type: Club
  url: https://www.ether.fi/the-club
- type: Institutional
  url: https://www.ether.fi/institutional
- type: Documentation
  url: https://etherfi.gitbook.io/etherfi
- type: TechnicalDocumentation
  url: https://etherfi.gitbook.io/etherfi/ether.fi-whitepaper/technical-documentation
- type: Contracts
  url: https://etherfi.gitbook.io/etherfi/contracts-and-integrations/contracts
- type: Integrations
  url: https://etherfi.gitbook.io/etherfi/contracts-and-integrations/integrations
- type: NodeOperators
  url: https://etherfi.gitbook.io/etherfi/node-operators/node-operators-guide
- type: HelpCenter
  url: https://help.ether.fi
- type: Governance
  url: https://governance.ether.fi
- type: GitHubOrganization
  url: https://github.com/etherfi-protocol
- type: OpenSource
  url: https://github.com/etherfi-protocol/smart-contracts
- type: BugBounty
  url: https://immunefi.com/bug-bounty/etherfi/
- type: DefiLlama
  url: https://defillama.com/protocol/ether.fi
- type: Dune
  url: https://dune.com/etherfi_team/etherfi
- type: Twitter
  url: https://twitter.com/ether_fi
- type: Discord
  url: https://discord.gg/ether-fi
- type: Medium
  url: https://medium.com/etherfi
- type: LinkedIn
  url: https://www.linkedin.com/company/ether-fi
- type: Blog
  url: https://medium.com/feed/etherfi
- type: Features
  data:
  - Non-custodial Ethereum liquid restaking — stakers retain validator keys
  - eETH rebasing liquid restaking token (LRT)
  - weETH non-rebasing ERC-20 wrapped version of eETH used across DeFi
  - eBTC Bitcoin restaking token
  - eUSD stablecoin restaking token
  - Liquid auto-balancing strategy vaults
  - ether.fi Cash non-custodial Visa credit card with cashback
  - The Club tiered membership and financial services program
  - Native restaking integration with EigenLayer, Symbiotic, and Karak
  - AVS operator infrastructure (etherfi-avs-operator) running services on top of restaked ETH
  - Cross-chain weETH via LayerZero on Arbitrum, Optimism, Base, Linea, Mode, Scroll, BNB Chain, Blast, Mantle, Solana
  - ETHFI governance token (cross-chain via Wormhole NTT)
  - Membership NFTs and loyalty points program
  - Distributed Validator Technology (DVT) via SSV Network
  - EigenPod proof generation tooling (Go)
  - EtherFiOracle off-chain oracle for validator state and rewards
  - Public subgraph indexing protocol contract events
  - Deep DeFi integrations with Aave, Pendle, Gearbox, Morpho, Curve, Balancer, Uniswap
  - Audited by CertiK, Certora, Hats Finance, Nethermind, Omniscia, Solidified
  - Open-source under MIT license on GitHub (etherfi-protocol)
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com