{"id":"modelcontextprotocol-inspector","name":"inspector","af_score":51.2,"security_score":56.2,"reliability_score":32.5,"what_it_does":"MCP Inspector is a developer tool for testing and debugging Model Context Protocol (MCP) servers. It includes a React web UI and a Node.js proxy that bridges to MCP servers over multiple transports (stdio, SSE, streamable-http), exposing a browser-based workflow for configuring, running, and inspecting MCP tools.","best_when":"You are developing an MCP server locally (or in a trusted dev environment) and need an interactive way to exercise tools and inspect traffic/results.","avoid_when":"Avoid exposing the proxy server to untrusted networks or disabling proxy authentication.","last_evaluated":"2026-03-29T14:55:29.788215+00:00","has_mcp":true,"has_api":false,"auth_methods":["Bearer token authentication (for proxy HTTP requests / SSE connections)"],"has_free_tier":false,"known_gotchas":["Proxy server can spawn local processes and connect to specified MCP servers—must be treated as local/trusted-only.","Authentication token handling is required unless explicitly (and dangerously) disabled.","Clients/browsers may store proxy token in local storage; query params take precedence for some settings.","Timeout settings apply to the inspector as an MCP client and are independent from server-side timeouts."],"error_quality":0.0}