MCP Inspector
Visual testing tool for Model Context Protocol servers. Like Postman for MCP - call tools, browse resources, and view real-time logs in a browser UI. Zero install via npx.
The MCP Inspector is the official interactive developer tool for testing and debugging Model Context Protocol servers. Think of it as Postman for MCP. It provides a React-based browser UI plus a Node.js proxy that connects to MCP servers over stdio, SSE, or streamable HTTP. The Tools panel lists all tools exposed by your server where you can fill in parameters using auto-generated forms from JSON schemas and see exact JSON responses. The Resources panel lets you browse static context like file contents and database schemas. It runs directly through npx with zero installation, launching a UI at localhost:6274. If you are building or debugging MCP servers, this is the first tool you reach for.
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Visual testing tool for Model Context Protocol servers. Like Postman for MCP - call tools, browse resources, and view real-time logs in a browser UI. Zero install via npx.
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MCP CLI
Lightweight CLI for discovering and calling MCP servers. Dynamic tool discovery reduces token consumption from 47K to 400 tokens. Three subcommands: info, grep, call.
MCP Hub
Centralized manager for MCP servers. Connect once to localhost:37373 and access all your servers through a single endpoint. REST API, web UI, and VS Code config compatible.
Smithery
Registry and hosting platform for MCP servers. 6,000+ servers indexed. One-command install and configuration via CLI. Supports local and hosted deployments.
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