🔧 MCP Fixer Server

Name: 🔧 MCP Fixer Server
Author: Kajdep

@Kajdep

🔧 MCP Fixer Server について

Build-and-run diagnostics for Claude Desktop MCP servers in one command. MCP-Fixer runs 25 diagnostics on every MCP server, pinpoints port/path issues, and offers one-click fixes – no config.

基本情報

カテゴリ

開発者ツール

ライセンス

MIT license

ランタイム

node

トランスポート

stdio

公開者

Kajdep

投稿者

Kajdep

設定

以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。

{
  "mcpServers": {
    "mcp-fixer": {
      "command": "npx",
      "args": [
        "@kajdep/mcp-fixer",
        "serve"
      ],
      "type": "stdio"
    }
  }
}

ツール

ツールは検出されませんでした

ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。

概要

What is MCP Fixer Server?

A comprehensive diagnostic and repair tool for Model Context Protocol (MCP) servers in Claude Desktop. It automatically detects, diagnoses, and fixes common MCP configuration issues.

How to use MCP Fixer Server?

Install via npx (npx @your-username/mcp-fixer-server install), global npm (npm install -g @your-username/mcp-fixer-server then mcp-fixer install), or clone and install locally. Once installed, ask Claude to run diagnostic tools (e.g., “Claude, diagnose my MCP configuration”) or use the CLI with commands like mcp-fixer check, mcp-fixer config, or mcp-fixer run.

Key features of MCP Fixer Server

Configuration Analysis – Validates JSON syntax, paths, and server settings
Server Status Monitoring – Real-time health checks for individual MCP servers
Dependency Validation – Ensures Node.js, npm, Python, UV are properly installed
Port Conflict Detection – Identifies network conflicts on common MCP ports
Automatic Syntax Fixing – Repairs JSON errors with automatic backup creation
Log File Analysis – Parses MCP logs for error patterns and insights
Smart Suggestions – Provides targeted fix recommendations
Safety First – Creates backups before any modifications

Use cases of MCP Fixer Server

Diagnose and fix JSON syntax errors in MCP configuration files
Check connectivity and health of individual MCP servers
Validate that required dependencies (Node.js, npm, Python) are present
Detect port conflicts that prevent MCP servers from starting
Generate a comprehensive diagnostic report for troubleshooting

FAQ from MCP Fixer Server

What does MCP Fixer Server do?

It is a diagnostic and repair tool that automatically detects, diagnoses, and fixes common MCP configuration issues in Claude Desktop.

How do I install MCP Fixer Server?

You can install it via npx (npx @your-username/mcp-fixer-server install), globally with npm (npm install -g @your-username/mcp-fixer-server), or by cloning the repository and running npm install and npm run install:claude.

What are the prerequisites?

You need Node.js 18+ installed, Claude Desktop with MCP support, and npm or npx available.

Does MCP Fixer Server create backups before making changes?

Yes, the tool includes a “Safety First” feature that creates backups before any modifications to configuration files.

What tools are available in MCP Fixer Server?

The available tools include diagnose_mcp_config, check_mcp_server_status, fix_config_syntax, validate_dependencies, check_port_conflicts, generate_diagnostic_report, and suggest_fixes.

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