FeatureSignals Developer Documentation

Everything you need to ship features safely. Feature flags, targeting, A/B testing, gradual rollouts, and AI-powered stale flag cleanup — all with sub-millisecond evaluation.

Integration Guide

Get started with FeatureSignals. Install the SDK, create your first feature flag, and learn core concepts like targeting, rollouts, and environments.

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API Playground

Explore the full REST API with an interactive playground. Try requests, see responses live, and test authentication flows.

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SDKs

Official SDKs for Go, Node.js, Python, Java, .NET, Ruby, React, Vue, and OpenFeature. All sub-millisecond evaluation.

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Tutorials

Step-by-step guides: feature-flag a checkout flow, run A/B tests, progressive rollouts, and configure kill switches.

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Architecture

Understand the evaluation engine, real-time updates, cache invalidation, and the hexagonal architecture powering FeatureSignals.

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Self-Hosting

Deploy FeatureSignals on your own infrastructure. Docker Compose, Kubernetes, or bare metal. Full control, zero data egress.

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