mcp -tester

The mcp-tester is an automated testing tool specifically designed for Model Context Protocol (MCP) servers. It allows developers to efficiently test the functionality and performance of their MCP implementations, ensuring adherence to protocol specifications and improving reliability in deployment. With its automated capabilities, you can quickly identify issues and verify server behavior under various scenarios.

Once connected to the mcp-tester, you can initiate automated test cases that are tailored for MCP servers. You can send various queries and commands to assess the server's response to different context models and data scenarios. It is recommended to focus on edge cases and common operations, as the tool will simulate multiple interactions to validate the server's robustness and correctness.

Prerequisites

Before you begin, ensure you have Node.js installed on your machine. This tool requires Node.js version 14 or higher.

Option A: Quick start with npx

If you're looking for a quick start, you can run the following command to test without installation:

npx -y mcp-tester  

Option B: Global install alternative

For a global installation, you can clone the repository and install the tool locally:

git clone https://github.com/r-huijts/mcp-server-tester.git  
cd mcp-server-tester  
npm install -g  

This will allow you to run mcp-tester from any location in your terminal.

When configuring the mcp-tester, ensure you set the necessary environment variables to match your MCP server settings, such as the server URL and authentication tokens. A common issue arises when the server is not reachable due to network configurations, so double-check your network settings if you encounter connection problems. Additionally, keep an eye on the GitHub repository for updates, as this tool is still a work in progress and may receive new features and fixes.