MCP Inspector

Model Context Protocol · Web app, Terminal

MCP Inspector is the Model Context Protocol project's own tool for testing and debugging MCP servers, run with npx as a browser interface, a scriptable CLI or a terminal UI. Servers are kept in a catalog file under an mcpServers object keyed by name, or passed for one session with --config. Local servers run over stdio and remote ones over Streamable HTTP or SSE, with custom headers and OAuth.

Runs on: macOS, Windows, Linux source
Kind: Web app, Terminal source
Price: Free source
Source code: Not published
Connects to: Local (stdio), Remote (HTTP), Remote (SSE) source
Publisher: Model Context Protocol source

How to add a server to MCP Inspector

We do not write a config for MCP Inspector yet. Its own docs show how to add a server: MCP Inspector's MCP docs.

Facts read from Model Context Protocol's own pages on 2026-11-01; the description is ours, from its site. Every client