What is the inspector MCP server?

modelcontextprotocol/inspector — Visual testing tool for MCP servers AgentRank score: 94.4/100.

Is the inspector MCP server actively maintained?

The inspector MCP server was last committed 15d ago and has 140 contributors. Issue health: 98% of issues resolved. AgentRank freshness score reflects real-time maintenance activity.

inspector MCP Server

Name: modelcontextprotocol/inspector
Rating: 4.8 (1 reviews)
Author: modelcontextprotocol

modelcontextprotocol/inspector

Score: 94.4 ↑ 6.8% Rank #108 MCP Server

[![AgentRank](https://agentrank-ai.com/api/v1/badge/modelcontextprotocol--inspector)](https://agentrank-ai.com/tool/modelcontextprotocol--inspector/?utm_source=badge&utm_medium=readme&utm_campaign=agentrank_badge)

Are you the maintainer of modelcontextprotocol/inspector? Claim this listing →

Visual testing tool for MCP servers

Add AgentRank to Claude Code Discover and compare tools like modelcontextprotocol/inspector — your AI finds the right one automatically

Get API Access →

claude mcp add agentrank -- npx -y agentrank-mcp-server

Overview

modelcontextprotocol/inspector is a TypeScript MCP server. Visual testing tool for MCP servers Topics: tool, debug, mcp, cli, tui, web.

Ranked #108 out of 24846 indexed tools.

In the top 1% of all indexed tools.

Has 11,060 GitHub stars.

Used by 1,247 other projects.

Has 140 contributors.

Ecosystem

TypeScript NOASSERTION 10 weekly downloads 12,626 npm/wk

tooldebugmcpclituiweb

Score Breakdown

Stars 15% 11,060

11,060 stars → extremely popular

Freshness 25% 15d ago

Last commit 15d ago → recently updated

Issue Health 25% 98%

1144/1169 issues closed → responsive maintainer

Contributors 10% 140

140 contributors → active community

Dependents 25% 1,247

1,247 dependents → widely adopted

npm Downloads 13% 12,626/wk

12,626 weekly installs → widely installed

PyPI Downloads N/A

Forks 1,542

Description Brief

License NOASSERTION

Weights: Freshness 20% · Issue Health 20% · Dependents 22% · Stars 10% · Contributors 8% · How we score →

Badge all embed codes →

Markdown

[![AgentRank](https://agentrank-ai.com/api/v1/badge/modelcontextprotocol--inspector)](https://agentrank-ai.com/tool/modelcontextprotocol--inspector/?utm_source=badge&utm_medium=readme&utm_campaign=agentrank_badge)

HTML

<a href="https://agentrank-ai.com/tool/modelcontextprotocol--inspector/?utm_source=badge&utm_medium=readme&utm_campaign=agentrank_badge"><img src="https://agentrank-ai.com/api/v1/badge/modelcontextprotocol--inspector" alt="AgentRank"></a>

Embed Widget docs →

HTML

<script src="https://agentrank-ai.com/embed.js" data-tool="modelcontextprotocol/inspector"></script>

Details

Stars: 11,060
Forks: 1,542
Open Issues: 25
Closed Issues: 1,144
Contributors: 140
Dependents: 1,247
Language: TypeScript
License: NOASSERTION
Last Commit: 15d ago

Matched Queries

"mcp server""mcp-server"topic:mcp

From the README

# MCP Inspector

A developer tool for inspecting [Model Context Protocol](https://modelcontextprotocol.io) (MCP) servers. It ships as a single package, `@modelcontextprotocol/inspector`, that provides three ways to inspect a server:

- **Web** — a Vite + React + [Mantine](https://mantine.dev) 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](https://github.com/vadimdemedes/ink).

All three run through one global `mcp-inspector` binary:

```bash
npx @modelcontextprotocol/inspector          # web UI (default)
npx @modelcontextprotocol/inspector --cli    # CLI
npx @modelcontextprotocol/inspector --tui    # TUI
```

> [!WARNING]
> **On a machine with no OS keychain, secrets are saved to a plaintext file by default.** That covers Linux without libsecret or a Secret Service, headless and SSH sessions, Termux, and containers with a mounted volume. OAuth cl

Read full README on GitHub →

See alternatives to modelcontextprotocol/inspector → Browse mcp-server category → Best MCP Server MCP servers → Compare modelcontextprotocol/inspector → How to Build an MCP Server in 2026 →MCP Server Comparison: Top 10 Head-to-Head →

View on GitHub →