# Decision API

- [v2 (latest)](/server-side/decision-api/decision-api.md)
- [Self-Hosted Decision API](/server-side/decision-api/run-on-premise.md): This guide explains the concept, architectural considerations, benefits, and implementation patterns for deploying FE\&R's Decision API in your own infrastructure.
- [QuickStart: Explore it with Node.js](/server-side/decision-api/run-on-premise/quickstart-explore-it-with-node.js.md): This quickstart guide will help you deploy the FE\&R Decision API locally and interact with it using Node.js. You'll learn how to make API calls, manage visitor sessions, and implement feature flag.
- [Install](/server-side/decision-api/run-on-premise/install.md): This guide provides detailed installation instructions for running the FE\&R Decision API on various platforms and environments.
- [Usage](/server-side/decision-api/run-on-premise/usage.md): The Decision API provides REST endpoints that enable you to retrieve feature flags and campaigns based on visitor context. This guide covers the three core endpoints with practical examples.
- [Reference](/server-side/decision-api/run-on-premise/reference.md)
- [Activate](/server-side/decision-api/run-on-premise/reference/activate.md)
- [Campaigns](/server-side/decision-api/run-on-premise/reference/campaigns.md)
- [Flags](/server-side/decision-api/run-on-premise/reference/flags.md)
- [Metrics](/server-side/decision-api/run-on-premise/reference/metrics.md)
- [Models](/server-side/decision-api/run-on-premise/reference/models.md)