# Opyn

**Canonical:** https://apis.io/providers/opyn/  
**Website:** https://www.opyn.co  
**APIs profiled:** 3

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.

## Kin Score — 27.9 / 100 (thin)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 27.9).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 38.9 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

Regulatory layer — **Securities & Market Data**: 20.0 (matched via tags).

## Agent readiness — 18.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Open access — onboarding: open, pricing: free, trial: no (confidence: medium).

## APIs (3)

- **Opyn Squeeth Subgraph API** — 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 de...
- **Opyn Gamma Subgraph API** — 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, set...
- **Squeeth Portal Auction API** — 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 param...

## Security (1)

- **Opyn Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Opyn Plans Pricing**

## Tags

DeFi, Options, Ethereum, Squeeth, Power Perpetual, Derivatives, Cryptocurrency, Web3, Smart Contracts, Subgraph, Crab Strategy, Vault

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/opyn/). Scores are computed from the provider's own public artifacts under a published rubric.