LaunchFlag MCP

An official MCP server provided by LaunchFlag that allows coding agents to create feature flags, flip them in development environments to test code changes, and promote them to staging. It integrates with agents like Claude Code, Codex, and Cursor to manage feature flag lifecycles directly from the coding workflow.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Vendor evidenceLocal stdioSource reviewed; not executedOperated by LaunchFlag

You need:npx launchflag init --key lf_dev_… --token lfk_... --url https://launchflag.devReplace lfk_... with your API token from the dashboard Install page

Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

Passed Official MCP Registry namespace is tied to launchflag.dev · Oct 31, 2026, 10:27 PM UTC

What you can do with it

Create a new feature flag via the MCP server
Flip a flag in development to test agent-written code
Promote a tested flag to staging environments

Source and maintenance

Vendor evidenceRegistry 0.2.7

mcp-registry: dev.launchflag/launchflag@0.2.7 Project website

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

launchflag-mcp 0.2.7

npm

launchflag-mcp package definition

{
  "version": "0.2.7",
  "transport": "stdio",
  "identifier": "launchflag-mcp",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "LAUNCHFLAG_TOKEN",
      "isRequired": true,
      "description": "API token from the LaunchFlag dashboard Install page."
    },
    {
      "name": "LAUNCHFLAG_URL",
      "description": "Base URL. Defaults to https://launchflag.dev."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "launchflag-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "launchflag-mcp@0.2.7"
      ],
      "env": {
        "LAUNCHFLAG_TOKEN": "<YOUR_LAUNCHFLAG_TOKEN>",
        "LAUNCHFLAG_URL": "<YOUR_LAUNCHFLAG_URL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "launchflag-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "launchflag-mcp@0.2.7"
      ],
      "env": {
        "LAUNCHFLAG_TOKEN": "<YOUR_LAUNCHFLAG_TOKEN>",
        "LAUNCHFLAG_URL": "<YOUR_LAUNCHFLAG_URL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "launchflag-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "launchflag-mcp@0.2.7"
      ],
      "env": {
        "LAUNCHFLAG_TOKEN": "<YOUR_LAUNCHFLAG_TOKEN>",
        "LAUNCHFLAG_URL": "<YOUR_LAUNCHFLAG_URL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "launchflag-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "launchflag-mcp@0.2.7"
      ],
      "env": {
        "LAUNCHFLAG_TOKEN": "<YOUR_LAUNCHFLAG_TOKEN>",
        "LAUNCHFLAG_URL": "<YOUR_LAUNCHFLAG_URL>"
      }
    }
  }
}

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