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Unleash Feature Flag MCP Server

@ylin6

Repository

Basic information

Category

Other

Transports

stdio

Author

ylin6

Submitted by

Yucheng Lin

About Unleash Feature Flag MCP Server

Unleash MCP Server

#unleash#feature-flag#mcp-server

Unleash Feature Flag MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "unleash-ff-mcp-server": {
      "command": "npx",
      "args": [
        "@ylin6/unleash-ff-mcp-server"
      ]
    }
  }
}

Unleash Feature Flag MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is Unleash Feature Flag MCP Server?

An MCP server that enables AI agents to manage feature flags in the Unleash feature management system via the Unleash API. It is intended for developers and teams using AI assistants like Cursor or Claude to interact with Unleash programmatically.

How to use Unleash Feature Flag MCP Server?

Install globally with npm install -g @ylin6/unleash-ff-mcp-server or run directly with npx @ylin6/unleash-ff-mcp-server. Configure environment variables UNLEASH_API_URL and UNLEASH_AUTH_TOKEN. For Cursor, use env UNLEASH_API_URL=XXXX UNLEASH_AUTH_TOKEN=XXX npx -y @ylin6/unleash-ff-mcp-server.

Key features of Unleash Feature Flag MCP Server

  • Retrieves all projects from the Unleash instance.
  • Lists all feature flags within a specific project.
  • Creates new feature flags with type, name, and description.
  • Updates existing feature flags (description and type).
  • Retrieves details of a single feature flag by project and feature ID.

Use cases of Unleash Feature Flag MCP Server

  • An AI assistant lists all projects in the Unleash instance.
  • A developer asks the assistant to show feature flags in a given project.
  • The assistant creates a new feature flag (e.g., release, experiment) in a project.
  • The assistant updates the description or type of an existing feature flag.
  • The assistant retrieves full details about a specific feature flag.

Frequently asked questions

1

What environment variables are required?

`UNLEASH_API_URL` (your Unleash API endpoint) and `UNLEASH_AUTH_TOKEN` (authentication token) must be set.

2

How do I install the MCP server?

Install globally via npm: `npm install -g @ylin6/unleash-ff-mcp-server`, or use npx to run it without installation.

3

What tools does the server provide?

It provides five tools: Get Projects, Get Features, Create Feature Flag, Update Feature Flag, and Get Feature Flag.

4

How can I use this server with Cursor?

Set the environment variables and run: `env UNLEASH_API_URL=XXXX UNLEASH_AUTH_TOKEN=XXX npx -y @ylin6/unleash-ff-mcp-server` in Cursor settings.

5

How do I inspect the server’s operations?

Run `npm run inspect` to start the MCP inspector and analyze request/response patterns.

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