MCP Inspector

88/100
MCP Server
by Model Context Protocol@modelcontextprotocol
Apache-2.0/MIT transition

Official MCP developer inspector for testing MCP servers through a browser UI, CLI launch flow, environment injection, and protocol debugging.

Reviewed on vmain@2026-05-01 - latest is v2.0.0. Scores may not reflect the current version.

Review Scores

Security31/35Maintain.32/35Usability25/30
Security31/35
Maintain.32/35
Usability25/30
Evidence:
high
Reviewed May 1, 2026
Newer version available

Reviewed Version

main@2026-05-01

Latest Version

2.0.0(drift)

Newer version available

The review covers main@2026-05-01; the latest version is 2.0.0. Recheck changes before installing.

Scores reflect the version reviewed and may change with updates.

Security Audit - No Flags Reported

Audited May 1, 2026

Live verification

✗ FAILED @2.0.0Jul 29, 2026

The server failed to start during verification.

Failed in two consecutive checks. The package may be unmaintained — consider alternatives.

Overview

When to Use

When NOT to Use

Configuration

Add to your Claude Desktop config:

npx @modelcontextprotocol/inspector

Troubleshooting

Used in Recipes

More by Model Context Protocol