About This Site
AI-powered wiki of failed YC startups providing post-mortems and technical rebuild playbooks. Startups.RIP is a comprehensive research platform and wiki featuring over 1,700 Y Combinator startups that have either shut down or been acquired. It utilizes an AI research agent to provide detailed post-mortems explaining what these companies built, why they failed, and what has changed in the market since then. For active builders, it offers 'rebuild playbooks' and implementation-ready technical specifications that can be directly used with AI coding agents like Claude Code or Cursor to iterate on validated market ideas with a fresh perspective.
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Key Features AI
Core Features
Database of 1,700+ YC startup post-mortems
AI-generated rebuild playbooks
Implementation-ready technical specs for AI coding agents
On-demand research reports for Pro subscribers
Categorized browsing by industry and YC batch
Advantages
Extensive database covering decades of YC history
Actionable technical specs compatible with AI editors
Unique 'Builder Discount' that rewards launching projects
Saves time on market research and technical architecture
缺点：Most detailed teardowns and specs are behind a paywall
缺点：Limited to 32 featured companies for free users
缺点：Success of rebuilds depends on current market conditions, not just past data
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