# Featureflip Server SDK API

**Canonical:** https://apis.io/apis/featureflip/featureflip-server-sdk-api/  
**Provider:** Featureflip — https://apis.io/providers/featureflip/  
**Base URL:** https://api.featureflip.io  
**Documentation:** https://featureflip.io/docs/management-api/overview/

Featureflip Server SDK API is one of 10 APIs that [Featureflip](https://apis.io/providers/featureflip/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Server SDK. The published artifact set on APIs.io includes an OpenAPI specification, an API reference, and API documentation.

SDK endpoints for feature flag evaluation and configuration retrieval. All endpoints require a valid SDK key passed via the Authorization header.

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| GET | `/v1/sdk/flags` | Retrieves all feature flags for the authenticated environment |
| GET | `/v1/sdk/flags/{key}` | Retrieves a specific feature flag by key |
| POST | `/v1/sdk/evaluate` | Evaluates a feature flag for the given context |
| POST | `/v1/sdk/events` | Records SDK events for analytics and debugging |
| GET | `/v1/sdk/stream` | Opens a Server-Sent Events stream for real-time flag updates |

## Machine-readable artifacts (7)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/featureflip/refs/heads/main/openapi/featureflip-server-sdk-api-openapi.yml
- **APIReference** — https://featureflip.io/docs/management-api/reference/
- **Documentation** — https://featureflip.io/docs/management-api/reference/
- **Documentation** — https://featureflip.io/docs/management-api/authentication/
- **LLMsTxt** — https://featureflip.io/llms.txt
- **APIReference** — https://featureflip.io/docs/api/reference/
- **Documentation** — https://featureflip.io/docs/api/reference/

## Other Featureflip APIs (9)

- [MCP Server (local)](https://apis.io/apis/featureflip/mcp-server-local/)
- [Featureflip Client SDK API](https://apis.io/apis/featureflip/featureflip-client-sdk-api/)
- [Featureflip Environments API](https://apis.io/apis/featureflip/featureflip-environments-api/)
- [Featureflip Feature Flags API](https://apis.io/apis/featureflip/featureflip-feature-flags-api/)
- [Featureflip Me API](https://apis.io/apis/featureflip/featureflip-me-api/)
- [Featureflip Organizations API](https://apis.io/apis/featureflip/featureflip-organizations-api/)
- [Featureflip Projects API](https://apis.io/apis/featureflip/featureflip-projects-api/)
- [Featureflip SDK Keys API](https://apis.io/apis/featureflip/featureflip-sdk-keys-api/)
- [Featureflip User Segments API](https://apis.io/apis/featureflip/featureflip-user-segments-api/)

## Tags

Server SDK

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