Opyn

aid: opyn
url: https://raw.githubusercontent.com/api-evangelist/opyn/refs/heads/main/apis.yml
name: Opyn
kind: company
description: Opyn is a DeFi options protocol on Ethereum mainnet best known for Squeeth (squared ETH), a Power Perpetual that
  gives traders continuous exposure to ETH² without liquidation risk on long positions. The protocol encompasses the Gamma
  Protocol (v2 options with cash-settled European options), the Crab Strategy (automated ETH²/ETH delta-neutral vault), Bull
  Strategy, and Opyn Markets (concentrated-liquidity perps). Developers integrate via The Graph GraphQL subgraph for querying
  squeeth positions, vault data, funding rates, and on-chain event history, combined with direct Ethereum smart-contract interaction
  through the Controller, Oracle, WPowerPerp, and Strategy contracts. No centralised REST API key is required; data access
  is permissionless through the subgraph and blockchain.
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Free · Open access
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/opyn.png
tags:
- DeFi
- Options
- Ethereum
- Squeeth
- Power Perpetual
- Derivatives
- Cryptocurrency
- Web3
- Smart Contracts
- Subgraph
- Crab Strategy
- Vault
created: '2026-06-14'
modified: '2026-06-14'
specificationVersion: '0.19'
x-category: Cryptocurrency
x-tier: 2
x-type: company
apis:
- aid: opyn:squeeth-subgraph-api
  name: Opyn Squeeth Subgraph API
  description: GraphQL API powered by The Graph that indexes all on-chain Squeeth events on Ethereum mainnet. Enables developers
    to query oSQTH positions, short vaults, vault collateral and debt, funding (mark/index) history, Crab strategy deposits
    and withdrawals, and liquidation events without running an archive node. The subgraph ID on The Graph network is Ao1QSKEQzsnNyyGKR1Faurjmkr6oNVTbgdxy6diAw9r.
  humanURL: https://thegraph.com/explorer/subgraphs/Ao1QSKEQzsnNyyGKR1Faurjmkr6oNVTbgdxy6diAw9r?view=Overview&chain=mainnet
  baseURL: https://gateway.thegraph.com/api
  tags:
  - Squeeth
  - Subgraph
  - GraphQL
  - Positions
  - Vaults
  - Funding Rate
  - Crab Strategy
  - Liquidations
  properties:
  - type: Documentation
    url: https://opyn.gitbook.io/squeeth
  - type: GraphQL
    url: https://thegraph.com/explorer/subgraphs/Ao1QSKEQzsnNyyGKR1Faurjmkr6oNVTbgdxy6diAw9r?view=Playground&chain=mainnet
  - type: GitHubRepository
    url: https://github.com/opynfinance/squeeth-monorepo
  - type: CodeExamples
    title: Squeeth Monorepo (Frontend + Contracts)
    url: https://github.com/opynfinance/squeeth-monorepo
- aid: opyn:gamma-subgraph-api
  name: Opyn Gamma Subgraph API
  description: GraphQL API via The Graph that indexes the Gamma Protocol (Opyn v2) on Ethereum mainnet. Covers oToken creation,
    option series, vault collateral, minting and burning events, settlement, and operator authorisations for European cash-settled
    options. Useful for querying options series data, vault collateral ratios, and historical settlement prices.
  humanURL: https://github.com/opynfinance/Gamma-Subgraph
  baseURL: https://api.thegraph.com/subgraphs/name/opynfinance/gamma-mainnet
  tags:
  - Options
  - Gamma Protocol
  - Subgraph
  - GraphQL
  - oTokens
  - Vaults
  - Settlement
  properties:
  - type: Documentation
    url: https://github.com/opynfinance/v2-documentation
  - type: GraphQL
    url: https://api.thegraph.com/subgraphs/name/opynfinance/gamma-mainnet
  - type: GitHubRepository
    url: https://github.com/opynfinance/Gamma-Subgraph
  - type: GitHubRepository
    title: Opyn v2 Documentation
    url: https://github.com/opynfinance/v2-documentation
  - url: graphql/opyn-schema.graphql
    type: GraphQLSchema
  - url: graphql/opyn-graphql.md
    type: GraphQL
- aid: opyn:squeeth-portal-api
  name: Squeeth Portal Auction API
  description: Web interface and data feed for the Crab Strategy weekly auction mechanism. The Squeeth Portal at squeethportal.xyz
    provides auction status, hedging queue, and rebalancing parameters used by Crab v2 and Jumbo Crab vaults. Developers can
    read auction state directly from the CrabStrategyV2 contract (0x3B960E47784150F5a63777201ee2B15253D713e8) on Ethereum
    mainnet.
  humanURL: https://www.squeethportal.xyz/auction
  baseURL: https://www.squeethportal.xyz
  tags:
  - Auction
  - Crab Strategy
  - Hedging
  - Rebalancing
  - Squeeth
  properties:
  - type: Documentation
    url: https://opyn.gitbook.io/squeeth/crab-strategy/introduction
  - type: Interface
    url: https://www.squeethportal.xyz/auction
  - type: GitHubRepository
    url: https://github.com/opynfinance/squeeth-monorepo
common:
- type: DomainSecurity
  url: security/opyn-domain-security.yml
- type: Website
  url: https://www.opyn.co
- type: Website
  title: Squeeth App
  url: https://squeeth.opyn.co
- type: Documentation
  url: https://opyn.gitbook.io/squeeth
- type: GitHubOrganization
  url: https://github.com/opynfinance
- type: Twitter
  url: https://x.com/opyn_
- type: Discord
  url: https://discord.gg/2NFdXaE
- type: Medium
  url: https://medium.com/opyn
- type: BugBounty
  url: https://immunefi.com/bounty/opyn/
- type: Audits
  url: https://opyn.gitbook.io/squeeth/resources/audits-and-insurance
- type: SmartContracts
  title: Controller (Mainnet)
  url: https://etherscan.io/address/0x64187ae08781B09368e6253F9E94951243A493D5
- type: SmartContracts
  title: WPowerPerp / oSQTH (Mainnet)
  url: https://etherscan.io/address/0xf1B99e3E573A1a9C5E6B2Ce818b617F0E664E86B
- type: SmartContracts
  title: CrabStrategyV2 (Mainnet)
  url: https://etherscan.io/address/0x3B960E47784150F5a63777201ee2B15253D713e8
- type: GraphExplorer
  title: Opyn Squeeth Subgraph (The Graph)
  url: https://thegraph.com/explorer/subgraphs/Ao1QSKEQzsnNyyGKR1Faurjmkr6oNVTbgdxy6diAw9r
- type: Plans
  url: plans/opyn-plans-pricing.yml
- type: RateLimits
  url: rate-limits/opyn-rate-limits.yml
- type: FinOps
  url: finops/opyn-finops.yml
integrations:
- name: Ethereum
- name: The Graph
- name: Uniswap V3
- name: Immunefi
- name: Sherlock
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com