Server-side SDKs
Overview
Harness FME provides server-side SDKs that let you evaluate feature flags, run experiments, and control rollouts from your backend services.
These SDKs are designed for high-throughput, low-latency environments where feature logic must run securely and reliably without exposing rules or targeting logic to the client.
By integrating a server-side SDK, you can:
- Evaluate targeting rules securely on the server
- Maintain consistent behavior across multiple environments
- Implement feature rollouts without redeploying backend code
- Collect event data for experiment analysis
Get started
Select a backend language or framework to begin.
| SDK | API Key/Type | Links |
|---|---|---|
| Java | server-side | Docs, GitHub |
| Node.js | server-side | Docs, GitHub |
| .NET | server-side | Docs, GitHub |
| Python | server-side | Docs, GitHub |
| PHP | server-side | Docs, GitHub |