inspector

inspector

A visualization tool for testing and debugging MCP servers.

MCPDevOpen source
Type
MCP
Open source
Yes
GitHub Stars
★ 10.2k
Source
mcp-github

Overview

MCP Inspector is a developer tool for testing and debugging MCP servers. It consists of two parts: a React-based Web UI and a Node.js proxy server. The Web UI provides an interactive interface, while the proxy server acts as a protocol bridge connecting the Web UI to the MCP server. With this tool, developers can easily test, debug, and export server configurations for MCP servers.

Capabilities

  • Interactive interface for testing MCP servers
  • Supports multiple transport protocols (stdio, SSE, streamable-http)
  • Export server configuration files
  • Supports environment variables and parameter passing

Use cases

Testing during MCP server developmentDebugging MCP serversExporting MCP server configurations

Setup

Requires: Node.js ^22.7.5
npx @modelcontextprotocol/inspector

This information was compiled by AI from public sources and may contain inaccuracies — please refer to the source.

FAQ

How to quickly start MCP Inspector?

Run `npx @modelcontextprotocol/inspector`.

Which transport protocols are supported?

Supports stdio, SSE, and streamable-http.

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