"Y Combinator" matching MCP connectors:

Validate HTML and CSS, audit SEO and JSON-LD, and check user-authorized public links.

Hosted Chromium in mainland China: scripted actions, URL screenshots, print-to-PDF.

Web scraping to clean Markdown with JS rendering, multi-page crawl, structured extract, sitemaps.

URL to clean markdown for LLMs: a polite, robots.txt-respecting web reader. Free, no API key

MCP-native AI browser testing for coding agents. Submit a URL + goal, get back action trail, bugs, screenshots, and WebM video your agent patches from directly. 43 tools, 12 AI evaluation personalities, combo tiers with auto-pause-on-bugs, throwaway email + SMS inboxes.

Web search for AI agents — one tool across 6 engines, routed to the cheapest + cached.

Conduct comprehensive research projects using a virtual computer equipped with a real browser, coding tools, document creation capabilities, and more. Deep Research by Openhelm enables your agent to tackle work such as: • Market and competitor analysis • Industry and company research • Investment and acquisition due diligence • Technical and scientific investigations • Report generation with sources and evidence What makes OpenHelm the best solution for this: • Research is continuously revie