Explore

Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. The no-code-founder end of the spectrum, mapped by its biggest player. lovable.dev Guide · How Founders Use AI Best Vibe Coding Tools: Build Apps by Chatting Lovable
  2. Compares what these builders actually generate under the hood. techsy.io Article · How Founders Use AI Lovable vs Bolt vs v0: What Your Code Looks Like Techsy
  3. An emerging-market reviewer's honest take on the big three app builders. techpoint.africa Article · How Founders Use AI Lovable vs Bolt vs v0: my honest review Techpoint Africa
  4. Includes the security caveats (the Veracode findings) most guides skip. shareuhack.com Guide · How Founders Use AI The Complete Vibe Coding Guide: How Non-Engineers Can Build Apps with AI Shareuhack
  5. A repeatable idea-to-deployed-MVP workflow with realistic timeboxes. vibecoding.app Guide · How Founders Use AI Vibe Coder's Guide to Building a Shippable MVP in 4 Hours Vibecoding.app
  6. Video · How Founders Use AI Simon Willison: Engineering practices that make coding agents work The Pragmatic Summit (Simon Willison)
  7. Honest answers on what coding agents still get wrong. simonw.substack.com Article · How Founders Use AI Fireside chat about agentic engineering Simon Willison
  8. A dev-shop comparison grounded in client project work. f22labs.com Article · How Founders Use AI Cursor Agent vs Claude Code: A Comparative Guide F22 Labs
  9. The earlier YC talk with the playbook for picking your vertical. ycombinator.com Video · How Founders Use AI Why Vertical LLM Agents Are The New $1 Billion SaaS Opportunities Y Combinator
  10. The macro argument for why agents expand rather than shrink the market. a16z.com Article · How Founders Use AI Good news: AI Will Eat Application Software a16z
  11. Puts the agent wave in the context of past platform shifts. stratechery.com Article · How Founders Use AI An Interview with Bret Taylor About AI Agents and Tech History Lessons Stratechery (Ben Thompson)
  12. From Google Maps to Sierra: how he evaluates the agent opportunity. sierra.ai Podcast · How Founders Use AI Bret Taylor on Lenny's Podcast Lenny's Podcast (Bret Taylor)
  13. Concrete, priced agent ideas you could start validating this week. x.com Thread · How Founders Use AI 35 startup ideas to start in 2025 (SaaS, AI agents) Greg Isenberg
  14. A second batch of buildable agent wedges with revenue models attached. x.com Thread · How Founders Use AI 30 startup ideas to build in 2025 (AI agents, SaaS, tools) Greg Isenberg
  15. A full teardown of how one vertical agent company reached $1.5B+. research.contrary.com Article · How Founders Use AI Decagon Business Breakdown & Founding Story Contrary Research
  16. The competitive dynamics of the hottest vertical, told through two rivals. upstartsmedia.com Article · How Founders Use AI Decagon, Sierra and the Race to Build Customer Support Agents Upstarts Media
  17. Proof that boring niches (dealership phone calls) make great agent businesses. techcrunch.com Article · How Founders Use AI Toma's AI voice agents have taken off at car dealerships TechCrunch
  18. The voice-agent market map, a whole sub-category of vertical opportunity. a16z.com Article · How Founders Use AI Hi, AI: Our Thesis on AI Voice Agents a16z
  19. The India-specific map of agentic startups, funding and open gaps. inc42.com Article · How Founders Use AI How India's Tech Landscape Got an Agentic AI Makeover in 2025 Inc42
  20. The company that popularized charging per resolution explains its own model. sierra.ai Article · How Founders Use AI Outcome-based pricing for AI agents Sierra (Bret Taylor's team)
  21. The listenable version: AI products can capture 25-50% of value created. open.spotify.com Podcast · How Founders Use AI Pricing your AI product (audio) Lenny's Podcast
  22. The quick summary thread before you commit 90 minutes. x.com Thread · How Founders Use AI Lenny on Madhavan's pricing playbooks Lenny Rachitsky
  23. An India-founded billing leader's data on outcome and value models. chargebee.com Article · How Founders Use AI Pricing AI for Distribution: How AI Companies Use Pricing to Grow Chargebee
  24. The structural argument: agents don't log in, so seats can't price them. mindstudio.ai Article · How Founders Use AI SaaS Pricing Is Breaking: Why Per-Seat Models Don't Survive the AI Agent Era MindStudio

Show the next 24

The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1046 questions GTM Go-to-market, from breaking in to how the best teams do it. 352 questions D2C Building a direct-to-consumer brand, India-first. 482 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 154 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 278 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 390 terms
eChai Partner Brands The partnership →