Heroku

The recommended installation method uses the Heroku CLI's built-in `heroku mcp:start` command, which requires CLI v10.8.1 or higher. Install or upgrade the CLI first.

# macOS via Homebrew:
brew tap heroku/brew && brew install heroku

# Upgrade if already installed:
brew upgrade heroku

# Verify version:
heroku --version

Log in to the Heroku CLI so `heroku mcp:start` can use your existing credentials. This is the recommended approach — no HEROKU_API_KEY env var is needed.

heroku login

Add the server to your claude_desktop_config.json using the `heroku mcp:start` command. This uses your existing CLI authentication automatically.

{
  "mcpServers": {
    "heroku": {
      "command": "heroku",
      "args": ["mcp:start"]
    }
  }
}

If you prefer not to install the CLI or need to authenticate with a token (e.g., in CI), use the npx method with a HEROKU_API_KEY. Get your API key from the Heroku dashboard under Account Settings.

{
  "mcpServers": {
    "heroku": {
      "command": "npx",
      "args": ["-y", "@heroku/mcp-server"],
      "env": {
        "HEROKU_API_KEY": "your-heroku-api-token-here"
      }
    }
  }
}

Restart Claude Desktop. The server exposes tools for app management, process scaling, add-ons, pipelines, logs, maintenance mode, team management, PostgreSQL operations, and more. Try asking about your apps to verify the connection.