作者 modelcontextprotocol · modelcontextprotocol/inspector
The official debugger for MCP servers — connect to any server, call its tools live, see the raw protocol traffic.
MCP Inspector is the canonical dev tool for MCP. Point it at a server (local or remote), enumerate tools and resources, fire calls with structured inputs, and watch frames go by. First thing to reach for when your server misbehaves.
%APPDATA%\Claude\claude_desktop_config.json{
"mcpServers": {
"mcp-inspector": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}Claude Desktop → Settings → Developer → Edit Config を開く。保存後、アプリを再起動。
{
"mcpServers": {
"mcp-inspector": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}Cursor は Claude Desktop と同じ mcpServers スキーマを使用。プロジェクト設定はグローバルより優先。
{
"mcpServers": {
"mcp-inspector": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}Cline サイドバーの MCP Servers アイコンをクリックし、"Edit Configuration" を選択。
{
"mcpServers": {
"mcp-inspector": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}Claude Desktop と同じ形式。Windsurf を再起動して反映。
{
"mcpServers": [
{
"name": "mcp-inspector",
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
]
}Continue はマップではなくサーバーオブジェクトの配列を使用。
{
"context_servers": {
"mcp-inspector": {
"command": {
"path": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}
}context_servers に追加。保存時に Zed がホットリロード。
claude mcp add mcp-inspector -- npx -y @modelcontextprotocol/inspectorワンライナー。claude mcp list で確認、claude mcp remove で削除。
使うタイミング： Claude says 'tool failed' and you need to see what really happened.
結果： Server bug isolated without LLM noise.
Build a FastMCP server; debug it with the Inspector before shipping
| ツール | 入力 | 呼び出すタイミング | コスト |
|---|---|---|---|
| tools.call | (see docs) | Invoke any tool the server advertises | 1 call |
| resources.list | (see docs) | Browse resources | 1 call |
Run untrusted MCP servers against your auth tokensServer won't connectCheck transport (stdio vs SSE); confirm the binary path
| 代替案 | 代わりに使う場面 | トレードオフ |
|---|---|---|
| mcp2cli | You prefer command-line | No GUI for protocol inspection |