MCP Inspector Assistant

A powerful MCP server that wraps the official MCP Inspector to provide programmatic access to server testing, debugging, and validation capabilities.

Features

Server Inspection: Start the MCP Inspector UI or CLI for any MCP server
Tool Testing: Test individual tools with specific arguments
Protocol Validation: Verify MCP protocol compliance
Capability Discovery: List all tools, resources, and prompts of a server
Debug Mode: Run servers with debug output and capture logs
Automatic Updates: Uses the official inspector package for latest features

Installation

npm install

Usage

As MCP Server (stdio)

npm start

As HTTP Service

npm run http

The HTTP service runs on port 8206 by default (configurable via MCP_INSPECTOR_PORT).

Available Tools

start_inspector

Start the MCP Inspector UI or CLI for a specific server.

{
  "tool": "start_inspector",
  "arguments": {
    "serverPath": "/path/to/mcp-server/standalone.js",
    "port": 5173,
    "mode": "ui"
  }
}

stop_inspector

Stop any running MCP Inspector instance.

{
  "tool": "stop_inspector",
  "arguments": {}
}

test_tool

Test a specific tool on an MCP server.

{
  "tool": "test_tool",
  "arguments": {
    "serverPath": "/path/to/server.js",
    "toolName": "myTool",
    "arguments": {
      "param1": "value1"
    }
  }
}

list_server_capabilities

List all capabilities (tools) of an MCP server.

{
  "tool": "list_server_capabilities",
  "arguments": {
    "serverPath": "/path/to/server.js"
  }
}

validate_protocol

Validate that a server follows MCP protocol correctly.

{
  "tool": "validate_protocol",
  "arguments": {
    "serverPath": "/path/to/server.js",
    "checks": ["initialization", "tools"]
  }
}

debug_server

Run a server with debug output and capture logs.

{
  "tool": "debug_server",
  "arguments": {
    "serverPath": "/path/to/server.js",
    "duration": 30
  }
}

Examples

Testing a Gateway Assistant Tool

# Using HTTP API
curl -X POST http://localhost:8206/tools/test_tool \
  -H "Content-Type: application/json" \
  -d '{
    "serverPath": "/path/to/mcp-gateway-assistant/standalone.js",
    "toolName": "check_service_health",
    "arguments": {
      "services": ["secrets", "logging"]
    }
  }'

Starting Inspector UI

# Start inspector for secrets assistant
curl -X POST http://localhost:8206/tools/start_inspector \
  -H "Content-Type: application/json" \
  -d '{
    "serverPath": "/path/to/mcp-secrets-assistant/standalone.js",
    "mode": "ui"
  }'

Testing

# Test MCP mode
npm test

# Test HTTP mode
npm run test:http

Integration with Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "inspector-assistant": {
      "command": "node",
      "args": [
        "/path/to/mcp-inspector-assistant/standalone.js"
      ],
      "env": {}
    }
  }
}

Dependencies

This assistant uses the official @modelcontextprotocol/inspector package, ensuring compatibility with the latest MCP Inspector features and updates.

This server cannot be installed

security - not tested

license - not found

quality - not tested

How are these scores calculated?

local-only server

The server can only run on the client's local machine because it depends on local resources.

Provides programmatic access to MCP server testing, debugging, and validation capabilities by wrapping the official MCP Inspector. Enables users to test tools, validate protocol compliance, discover server capabilities, and debug MCP servers through natural language interactions.

Related MCP Servers

MCP Everything
s2005
-
security
A
license
-
quality
A test server implementing all features of the MCP protocol, including prompts, tools, resources, and sampling, designed for testing MCP clients rather than practical applications.
Last updated -
MIT License
MCP HTTP Requests
godzeo
A
security
A
license
A
quality
A comprehensive HTTP client MCP server for security testing, API testing, and web automation that provides full-featured HTTP tools with detailed logging capabilities.
Last updated -
8
2
MIT License
mcp-server-test
JussCubs
-
security
F
license
-
quality
mcp-server-test
Last updated -
mcp-test-server
kukapay
-
security
F
license
-
quality
A lightweight MCP test server for verifying client connectivity, providing tools, resources, and prompts for integration.
Last updated -
4

View all related MCP servers

MCP Inspector Assistant