Tool · curated 9 Aug 2026
GitHub - ytkoka/mcp-tester: A web-based tool for inspecting MCP servers. Connect to any MCP server, browse its Tools, Resources, and Prompts, measure fetch latency, estimate token usage, score the quality of tool definitions, and compare two servers side by side, and scan for tool poisoning and rug pulls.
First reported github.com
Coverage timeline
Single-source analysis — first reported, latest, and curated coincide.
Why it matters
mcp-tester gives defenders a runnable way to inspect and audit MCP servers for tool-poisoning and rug-pull attacks, addressing a growing attack surface as agentic AI systems adopt the Model Context Protocol.
mcp-tester is an open-source web-based tool by ytkoka for inspecting MCP (Model Context Protocol) servers: it connects to any MCP server, browses Tools, Resources, and Prompts, measures fetch latency, estimates token usage, scores tool-definition quality, compares two servers, and scans for tool poisoning and rug pulls. The repository is published on GitHub under an MIT license with a live demo.