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MCP

Visual testing tool for MCP servers

★ 11K1,528 forksTypeScriptCustommodelcontextprotocol

Official MCP Inspector from the Model Context Protocol project: a TypeScript tool for testing and debugging MCP servers via a web UI, scriptable CLI, or terminal UI, all driven by one mcp-inspector binary. Useful for interactive debugging and CI smoke tests of MCP servers.

Use Cases

Visually inspect and debug MCP servers over stdio/SSE/HTTPCall MCP tools, read resources, and test prompts interactivelyScript MCP server smoke tests in CI via the CLI with JSON outputTest MCP OAuth authentication flowsReview MCP App tools via CLI-first then one-shot webExplore server capabilities through an interactive terminal UIAutomate agent feedback loops against MCP servers

Built With

Language
TypeScript
Frameworks
React · Vite · Mantine · Ink · Node.js · TypeScript · Storybook · Playwright · Express

Tags

mcp · inspector · debugging · testing · cli · tui · web-ui · developer-tools · mcp-servers · oauth · ci · smoke-testing · typescript