# OpenFeature

**Canonical:** https://apis.io/providers/openfeature/  
**Website:** https://openfeature.dev  
**APIs profiled:** 1

OpenFeature is a CNCF incubating open specification for feature flag management. It provides a vendor-agnostic API for evaluating feature flags, enabling developers to use a consistent interface regardless of the underlying feature flag provider. OpenFeature offers SDKs in multiple languages including Go, Java, JavaScript, Python, PHP, and .NET with a provider-based architecture.

## Kin Score — 30.9 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 30.9).

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 58.5 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 33.1 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (1)

- **OpenFeature OFREP Core API** — **Required**: Core APIs to implement to support OFREP. *This is the minimum set of APIs required for a flag management system to be OFREP compatible.*

## Agentic access (1)

- **Openfeature Agentic Access** — 2 operations · 2 acting

## Security (2)

- **Openfeature Authentication** — apiKey/http · 2 schemes
- **Openfeature Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **Openfeature Plans Pricing**

## Tags

Cloud-Native, Feature Flags, Feature Management, Incubating, SDK, Specification

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