# modelcontextprotocol/inspector

> Deterministic testing tools for MCP servers

- GitHub: https://github.com/modelcontextprotocol/inspector
- Website: https://modelcontextprotocol.io/docs/2026-07-28/tools/inspector
- Category: MCP & Tool Use (https://ideas.asveas.com/c/mcp); also CLI & Terminal
- Tags: cli, debug, mcp, tool, tui, web, typescript
- Language: TypeScript · License: Other
- Stars: 11,273 · Forks: 1,567 · Open issues: 22
- Last push: 2026-11-11 (today)
- Vibe score: 86/100

## What it is
A developer tool for inspecting Model Context Protocol (MCP) servers. It ships as a single package, @modelcontextprotocol/inspector, that provides four ways to inspect a server: Web — a Vite + React + Mantine single-page app with a Node backend. CLI — a scriptable command-line client for automation, CI, and fast agent feedback loops. TUI — an interactive terminal UI built with Ink. mcpdo (experimental) — a connection CLI: connect once, then run many commands against the named connection through an implicit local daemon. See clients/mcpdo.

## When to use it
Reach for inspector when you want Claude, Cursor or any MCP client to reach a new tool, API or data source — it's written in TypeScript and fits stacks tagged cli, debug, mcp, tool.

## Maintenance
modelcontextprotocol/inspector looks very actively maintained: the last push was today (2026-11-11), with 11,273 stars and 22 open issues.

## Quick start
```bash
git clone https://github.com/modelcontextprotocol/inspector.git
```

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- [modelcontextprotocol/python-sdk](https://github.com/modelcontextprotocol/python-sdk) — The official Python SDK for Model Context Protocol servers and clients (★24.8k, Python, vibe 89/100) · details: https://ideas.asveas.com/r/modelcontextprotocol/python-sdk
- [microsoft/playwright-mcp](https://github.com/microsoft/playwright-mcp) — Playwright MCP server (★39.5k, TypeScript, vibe 87/100) · details: https://ideas.asveas.com/r/microsoft/playwright-mcp

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Source: https://ideas.asveas.com/r/modelcontextprotocol/inspector · Catalog: https://ideas.asveas.com/llms.txt