Fetch Guard

Fetch Guard is an open-source MCP server and CLI tool for safely fetching and extracting content from URLs, returning LLM-ready, clean markdown. It is specifically designed to sanitize HTML, extract structured metadata, and proactively detect and defend against prompt injection attempts and other adversarial web content issues (such as hidden text, paywalls, login walls, JavaScript-rendered pages, and content obfuscations). Ideal for anyone needing to feed web content to language models (LLMs), Fetch Guard ensures safety, reliability, and consistency for AI pipelines, developer platforms, and research applications.