mcpvals
npxStandardMCPvals is an evaluation library for testing Model Context Protocol servers. It provides tools to validate server functionality, check API responses, and ensure compliance with MCP standards. It connects to any MCP server to run tests and generate reports. Developers use it to verify server behavior, debug issues, and ensure reliability before deployment.
4730Updated 2 months ago
Overview
MCPvals is an evaluation library for testing Model Context Protocol servers. It provides tools to validate server functionality, check API responses, and ensure compliance with MCP standards. It connects to any MCP server to run tests and generate reports. Developers use it to verify server behavior, debug issues, and ensure reliability before deployment.
Installation
1Install the package
npx
npx -y mcpvals2Add to Claude
Add this configuration to your claude_desktop_config.json:
claude_desktop_config.json
{
"mcpServers": {
"mcpvals-npm": {
"command": "npx",
"args": [
"-y",
"npx -y mcpvals"
]
}
}
}3Verify installation
Restart Claude Desktop, then ask:
"What tools do you have available from mcpvals?"
Prerequisites
- Node.js 18 or higher
- npm or npx available
- Claude Desktop or Claude API access
- API key for mcpvals
Configuration
API Key Required
This server requires an API key from mcpvals. Add it to your environment or config.
| Variable | Required | Description |
|---|---|---|
| MCPVALS_API_KEY | Yes | Your mcpvals API key |
Usage Examples
List Resources
"What resources are available in mcpvals?"
Claude will query available resources and return a list of what you can access.
Get Details
"Show me details about [specific item] in mcpvals"
Claude will fetch and display detailed information about the requested item.
Create New
"Create a new [item] in mcpvals with [details]"
Claude will use the appropriate tool to create the resource and confirm success.
Works with mcpvals
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