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MCP Server Testing Application
A Node.js application for testing MCP server connectivity and basic functionality
rating : 2 points
downloads : 6
What is MCP Server Testing Application?
This is a user-friendly tool designed to help developers and administrators verify the connectivity and core functions of any MCP-compatible AI backend server. It performs basic health checks and test prompts without requiring technical expertise.How to use the tester?
Simply enter your MCP server URL and click the test buttons. The application will automatically check connectivity, verify the health endpoint, and send a sample prompt to validate functionality.When should you use this?
Ideal for: 1) Setting up new MCP servers 2) Troubleshooting connection issues 3) Verifying server responses during development 4) Demonstrating MCP functionality to stakeholdersKey Features
Server Connectivity TestVerifies basic network connection to your MCP server using HTTP requests
Health Endpoint ValidationAutomatically detects and tests the /health endpoint or falls back to HEAD request
Prompt Function TestSends a sample prompt to the /run endpoint and displays the complete response structure
Visualized ResultsClearly displays server responses, execution steps, output schema and final answers
Pros and Cons
Advantages
No installation required on the server side
Simple web interface accessible from any device
Comprehensive validation of all core MCP functions
Immediate visual feedback about server status
Limitations
Only tests basic functionality (not load testing)
Requires network access to the MCP server
Sample prompt may need adjustment for custom implementations
Getting Started
Install the tester
Clone the repository and install dependencies
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Start the application
Launch the testing web interface
Access the interface
Open your browser to the local testing page
Enter server details
Input your MCP server's base URL (e.g. http://your-server:8080)
Example Scenarios
Basic Connectivity TestVerifying a new MCP server installation
Full Function TestTesting complete pipeline with sample prompt
Frequently Asked Questions
What if my server doesn't have a /health endpoint?
Can I customize the test prompt?
Why am I getting CORS errors?
Additional Resources
MCP Protocol Documentation
Official specification for Modular Computational Prompting
Sample MCP Server Implementation
Reference implementation of an MCP-compatible server
Node.js Installation Guide
For users who need to install Node.js to run this tester
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