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Unleash

v1.0.0•Developer Tools•stable

A Model Context Protocol (MCP) server implementation that integrates with Unleash Feature Toggle system.

unleashmcpai-integration
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What is Unleash?

Unleash is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to model context protocol (mcp) server implementation that integrates with unleash feature toggle system.

A Model Context Protocol (MCP) server implementation that integrates with Unleash Feature Toggle system.

This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.

Features

  • A Model Context Protocol (MCP) server implementation that in

Use Cases

Integrate Unleash feature toggle system with AI assistants for feature management.
cuongtl1992

Maintainer

LicenseMIT
Languagetypescript
Versionv1.0.0
UpdatedFeb 2, 2026
Statushealthy
Maintenanceactive

Works with

ClaudeOpenAIwindowsmacoslinux
View SourceBrowse All Servers

Installation

Manual Installation

npx unleash

Configuration

Configuration Details

Config File

claude_desktop_config.json

Performance

Response Metrics

Response Time< 200ms
ThroughputMedium

Resource Usage

Memory UsageLow
CPU UsageLow

How to Set Up and Use Unleash

The Unleash MCP Server integrates the Unleash feature toggle management system with AI assistants through a TypeScript MCP implementation. It allows Claude and other LLM clients to check feature flag statuses, list projects, create new flags, update existing flags, and query individual toggles — enabling AI-driven feature flag management workflows.

Prerequisites

  • Node.js v18+ and npm installed
  • TypeScript v5.0+ (installed via npm)
  • An Unleash instance (self-hosted or Unleash Cloud) with API access
  • An Unleash API token with appropriate permissions
  • Your Unleash server URL (e.g., https://app.unleash-hosted.com/demo)
1

Clone and install dependencies

Clone the Unleash MCP server repository and install its Node.js dependencies.

git clone https://github.com/cuongtl1992/unleash-mcp.git
cd unleash-mcp
npm install
2

Build the TypeScript project

Compile the TypeScript source to JavaScript so the server can be run with Node.js.

npm run build
3

Set required environment variables

Configure the Unleash connection details. UNLEASH_URL is your Unleash server endpoint and UNLEASH_API_TOKEN is the authentication token from your Unleash admin panel.

export UNLEASH_URL="https://your-unleash-instance.com"
export UNLEASH_API_TOKEN="your-unleash-api-token"
export MCP_TRANSPORT="stdio"
4

Configure Claude Desktop or Claude Code

Add the server entry to your MCP client config. Use npx unleash-mcp if the package is published, or reference the built local file.

{
  "mcpServers": {
    "unleash": {
      "command": "npx",
      "args": ["-y", "unleash-mcp"],
      "env": {
        "UNLEASH_URL": "https://your-unleash-instance.com",
        "UNLEASH_API_TOKEN": "your-unleash-api-token",
        "MCP_TRANSPORT": "stdio",
        "MCP_HTTP_PORT": "3001"
      }
    }
  }
}
5

Verify with a feature flag query

Restart Claude and ask it to list all feature flags or check the status of a specific flag to confirm the connection.

Unleash Examples

Client configuration

Claude Desktop or Cursor configuration using npx with required Unleash connection environment variables.

{
  "mcpServers": {
    "unleash": {
      "command": "npx",
      "args": ["-y", "unleash-mcp"],
      "env": {
        "UNLEASH_URL": "https://app.unleash-hosted.com/demo",
        "UNLEASH_API_TOKEN": "*:development.your-token-here",
        "MCP_TRANSPORT": "stdio",
        "MCP_HTTP_PORT": "3001"
      }
    }
  }
}

Prompts to try

Example prompts for checking flags, listing projects, and managing feature toggles through Claude.

- "Check the status of the feature flag 'new-checkout-flow' in Unleash"
- "List all feature flags in the default Unleash project"
- "Is the 'dark-mode' feature flag currently enabled?"
- "Create a new feature flag called 'beta-dashboard' in the default project"
- "Show me all projects in my Unleash instance and their flag counts"

Troubleshooting Unleash

401 Unauthorized when connecting to Unleash

Verify UNLEASH_API_TOKEN is a valid Unleash API token. In Unleash, generate a token under Admin > API Access. Ensure the token environment type (development/production) matches the environment you are querying.

Connection refused or ECONNREFUSED error

Check that UNLEASH_URL points to your running Unleash instance including the correct port if self-hosted (e.g., http://localhost:4242). Confirm the instance is running and the URL does not have a trailing slash.

npm run build fails with TypeScript errors

Ensure TypeScript v5.0+ is installed: npm install -g typescript. If errors persist, run npm install again to ensure all @types packages are installed before building.

Frequently Asked Questions about Unleash

What is Unleash?

Unleash is a Model Context Protocol (MCP) server that model context protocol (mcp) server implementation that integrates with unleash feature toggle system. It connects AI assistants to external tools and data sources through a standardized interface.

How do I install Unleash?

Follow the installation instructions on the Unleash GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.

Which AI clients work with Unleash?

Unleash works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.

Is Unleash free to use?

Yes, Unleash is open source and available under the MIT license. You can use it freely in both personal and commercial projects.

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Quick Config Preview

{ "mcpServers": { "unleash": { "command": "npx", "args": ["-y", "unleash"] } } }

Add this to your claude_desktop_config.json or .cursor/mcp.json

Read the full setup guide →

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