# Styra (Open Policy Agent / Enterprise OPA)

> Styra is the company that created Open Policy Agent (OPA), the CNCF-graduated policy engine, and commercialized it as Enterprise OPA and Styra DAS (Declarative Authorization Service) for authorization and policy-as-code. Styra was acquired by Akamai in December 2024; the styra.com and docs.styra.com web properties no longer resolve, but the open-source technical surface — GitHub, published SDKs, the OpenAPI spec, and gRPC protobufs — remains active. This llms.txt was generated by the API Evangelist enrichment pipeline from repository artifacts.

## APIs

- [Enterprise OPA / OPA REST API (OpenAPI 3.0.3)](openapi/styra-enterprise-opa-openapi.yaml): Execute policy decisions, batch decisions, partial evaluation / data filtering (UCAST + SQL), and health checks. HTTP bearer-token auth.
- [OPA REST API reference (canonical, live)](https://www.openpolicyagent.org/docs/rest-api)

## Specs & Artifacts

- [OpenAPI](openapi/styra-enterprise-opa-openapi.yaml)
- [gRPC: Data service](grpc/styra-data-v1.proto)
- [gRPC: Bulk service](grpc/styra-bulk-v1-bulk.proto)
- [gRPC: Policy service](grpc/styra-policy-v1-policy.proto)
- [Authentication profile](authentication/styra-authentication.yml)
- [Error / problem types](errors/styra-problem-types.yml)
- [API conventions](conventions/styra-conventions.yml)
- [Data model](data-model/styra-data-model.yml)
- [Conformance](conformance/styra-conformance.yml)
- [Lifecycle](lifecycle/styra-lifecycle.yml)
- [Changelog](changelog/styra-changelog.yml)
- [Packages / SDKs](packages/styra-packages.yml)
- [CLI (eopa)](cli/styra-cli.yml)
- [MCP candidate tools](mcp/styra-mcp.yml)
- [Agentic access](agentic-access/styra-agentic-access.yml)

## SDKs

- [TypeScript: @styra/opa](https://www.npmjs.com/package/@styra/opa)
- [Java: com.styra:opa](https://central.sonatype.com/artifact/com.styra/opa)
- [C#: Styra.Opa](https://www.nuget.org/packages/Styra.Opa)

## Docs

- [Open Policy Agent docs](https://www.openpolicyagent.org/docs)
- [OPA REST API](https://www.openpolicyagent.org/docs/rest-api)
- [Enterprise OPA on GitHub](https://github.com/StyraOSS/enterprise-opa)