open-feature/mcp

OpenFeature MCP

OpenFeature is an open specification that provides a vendor-agnostic, community-driven API for feature flagging that works with your favorite feature flag management tool or in-house solution.

Overview

⚠️ Active Development: This project is in active development. Features and APIs may change.

The OpenFeature Model Context Protocol (MCP) Server enables AI coding assistants to interact with OpenFeature through a standardized protocol. It provides SDK installation guidance and feature flag evaluation capabilities directly within your AI-powered development environment.

The OpenFeature MCP Server is a local tool that connects AI coding assistants (like Cursor, Claude Code, VS Code, and Windsurf) to OpenFeature functionality. It acts as a bridge between your AI assistant and OpenFeature capabilities, enabling intelligent code generation and migration, SDK installation guidance, and feature flag evaluation.

This server is published to the MCP Registry under dev.openfeature/mcp.

⚠️ AI Agent Behavior: AI agents are non-deterministic and may not complete tasks correctly. Always manually review their changes before committing. If you encounter issues, please open an issue with details about your AI agent (e.g., Claude Code + Sonnet 4.5, Cursor + gpt-5-codex) with the commands you used and the behavior you saw.

Quick Start

NPX Install

The easiest way to use the OpenFeature MCP Server is through NPX, which requires no installation:

{
  "mcpServers": {
    "OpenFeature": {
      "command": "npx",
      "args": ["-y", "@openfeature/mcp"]
    }
  }
}

NPM Global Install

You can install the MCP server globally:

npm install -g @openfeature/mcp

Then configure your AI assistant to use the global installation:

{
  "mcpServers": {
    "OpenFeature": {
      "command": "openfeature-mcp"
    }
  }
}

AI Assistant Configuration

Cursor

📦 Install in Cursor