# Opyn Gamma Subgraph API

**Canonical:** https://apis.io/apis/opyn/gamma-subgraph-api/  
**Provider:** Opyn — https://apis.io/providers/opyn/  
**Base URL:** https://api.thegraph.com/subgraphs/name/opynfinance/gamma-mainnet  
**Documentation:** https://github.com/opynfinance/Gamma-Subgraph

Opyn Gamma Subgraph API is one of 3 APIs that [Opyn](https://apis.io/providers/opyn/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Options, Gamma Protocol, Subgraph, GraphQL, and oTokens. The published artifact set on APIs.io includes API documentation and a GitHub repository.

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.

## Machine-readable artifacts (6)

- **Documentation** — https://github.com/opynfinance/v2-documentation
- **GraphQL** — https://api.thegraph.com/subgraphs/name/opynfinance/gamma-mainnet
- **GitHubRepository** — https://github.com/opynfinance/Gamma-Subgraph
- **GitHubRepository** — https://github.com/opynfinance/v2-documentation
- **GraphQLSchema** — https://raw.githubusercontent.com/api-evangelist/opyn/refs/heads/main/graphql/opyn-schema.graphql
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/opyn/refs/heads/main/graphql/opyn-graphql.md

## Other Opyn APIs (2)

- [Opyn Squeeth Subgraph API](https://apis.io/apis/opyn/squeeth-subgraph-api/)
- [Squeeth Portal Auction API](https://apis.io/apis/opyn/squeeth-portal-api/)

## Tags

Options, Gamma Protocol, Subgraph, GraphQL, oTokens, Vault, Settlement

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/opyn/gamma-subgraph-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/opyn/.