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Startups.RIP

Startups.RIP is a research library of post-mortems, rebuild plans, and technical specs for 1,700+ dead and acquired Y Combinator startups, helping founders learn from ideas worth revisiting.

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Startups.RIP screenshot

Startups.RIP is a research platform focused on dead and acquired Y Combinator startups. It provides research reports, rebuild plans, and technical specs for 1,700+ YC companies, framed around the idea that startups die but their ideas do not, so founders can navigate the idea maze with lessons from the companies that came before.

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Each company teardown goes deep: the reports cover the founding story, timeline, what the company built, market position and size, competition, business model, and a detailed post-mortem with key lessons and cited sources, as seen in write-ups of companies like Clever and Loopt. Pro plans add build assets, including rebuild plans and implementation-ready technical specs, plus on-demand research requests and an Agent CLI that imports research directly into coding agents.

Startups.RIP offers a free tier with 40 reports plus a daily email, and a Pro plan ($15/month or $180/year) that unlocks every teardown, build assets, 5 fresh report requests a month, and the Agent CLI. It is aimed at founders and builders looking for rebuildable ideas and the strategic lessons behind past startups.

  • CategoryAI Research Assistants
  • Pricing ModelFreemium
  • DeploymentCloud
  • PlatformsWeb

  • Post-mortems for 1,700+ dead and acquired YC startups

  • Deep reports covering founding story, timeline, model, and lessons

  • Rebuild plans and implementation-ready technical specs

  • On-demand research requests on Pro

  • Agent CLI to import research into coding agents

  • Daily email of new reports

  • Free tier plus affordable Pro plan

  1. Browse featured companies: explore teardowns of dead and acquired YC startups.

  2. Open a report: read the founding story, timeline, business model, and post-mortem.

  3. Pick a rebuildable idea: use lessons and market context to find ideas worth revisiting.

  4. Unlock build assets: go Pro for rebuild plans and technical specs.

  5. Bring it to your agent: import research into coding agents via the Agent CLI.

  • Idea research
  • Startup post-mortems
  • Technical rebuild planning
  • Coding-agent research

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