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modelcontextprotocol/inspector

Visual testing tool for MCP servers

★ 11.1KWeek rank 24 · star gain starts at the next snapshot

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From the README

MCP Inspector 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.

Setup prompt

Paste this into Cursor or Claude Code. It only includes install lines found in the README, and it asks the agent to review the code first.

Set up the GitHub repository modelcontextprotocol/inspector (Visual testing tool for MCP servers).
Repository: https://github.com/modelcontextprotocol/inspector

Official install commands found in the README:
npx @modelcontextprotocol/inspector                   # web UI (default)
npx @modelcontextprotocol/inspector --cli             # CLI
npx @modelcontextprotocol/inspector --tui             # TUI
npx -p @modelcontextprotocol/inspector mcpdo --help   # mcpdo
npm install          # at the repo root; postinstall cascades into every client
npm run build        # web → cli → tui → launcher
npm run web        # prod web launcher against clients/web/dist
npm run web:dev    # web launcher in --dev mode (Vite)
npm run validate     # fast inner loop: format:check + lint + typecheck + build + unit tests
npm run coverage     # the per-file ≥90% gate (lines/statements/functions/branches)
npm run local:gate   # MANDATORY before pushing — every GitHub CI check, plus one local-only one

Clone the repository and follow those steps. Do not invent package names or extra install commands.
Review the code before running anything.

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