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Launches the MCP Inspector UI for testing and debugging your server’s tools, resources, and prompts.

Usage

Configuration

project.json

Options

The frontmcp inspector command takes no flags, so the executor forwards port as the CLIENT_PORT environment variable instead.

Behavior

  • Opens the MCP Inspector at http://localhost:6274
  • Connect to your running server to browse and test capabilities
  • Not cacheable: Interactive, long-running process