par 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"
]
}
}
}Ouvrez Claude Desktop → Settings → Developer → Edit Config. Redémarrez après avoir enregistré.
{
"mcpServers": {
"mcp-inspector": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}Cursor utilise le même schéma mcpServers que Claude Desktop. La config projet l'emporte sur la globale.
{
"mcpServers": {
"mcp-inspector": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}Cliquez sur l'icône MCP Servers dans la barre latérale Cline, puis "Edit Configuration".
{
"mcpServers": {
"mcp-inspector": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}Même format que Claude Desktop. Redémarrez Windsurf pour appliquer.
{
"mcpServers": [
{
"name": "mcp-inspector",
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
]
}Continue utilise un tableau d'objets serveur plutôt qu'une map.
{
"context_servers": {
"mcp-inspector": {
"command": {
"path": "npx",
"args": [
"-y",
"@modelcontextprotocol/inspector"
]
}
}
}
}Ajoutez dans context_servers. Zed recharge à chaud à la sauvegarde.
claude mcp add mcp-inspector -- npx -y @modelcontextprotocol/inspectorUne seule ligne. Vérifiez avec claude mcp list. Supprimez avec claude mcp remove.
Quand l'utiliser : Claude says 'tool failed' and you need to see what really happened.
Résultat : Server bug isolated without LLM noise.
Build a FastMCP server; debug it with the Inspector before shipping
| Outil | Entrées | Quand appeler | Coût |
|---|---|---|---|
| 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
| Alternative | Quand l'utiliser | Compromis |
|---|---|---|
| mcp2cli | You prefer command-line | No GUI for protocol inspection |