# MCP Inspector The MCP inspector is a developer tool for testing and debugging MCP servers. It can be run easily from `npx`. For example, in a folder where there's a built JavaScript server at `build/index.js`: ``` npx @modelcontextprotocol/inspector build/index.js ``` You can also pass arguments along to the server: ``` npx @modelcontextprotocol/inspector build/index.js arg1 arg2 ... ``` ## License This project is licensed under the MIT License—see the [LICENSE](LICENSE) file for details.