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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. 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
  2. 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
  3. Honest answers on what coding agents still get wrong. simonw.substack.com Article · How Founders Use AI Fireside chat about agentic engineering Simon Willison
  4. 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
  5. 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
  6. 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)
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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)
  15. The quick summary thread before you commit 90 minutes. x.com Thread · How Founders Use AI Lenny on Madhavan's pricing playbooks Lenny Rachitsky
  16. 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
  17. 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
  18. How enterprise buyers expect to budget for agents, useful in negotiations. deloitte.com Article · How Founders Use AI SaaS meets AI agents: transforming budgets and customer experience Deloitte
  19. What incumbents are doing to their pricing, so you can position against it. rsmus.com Article · How Founders Use AI SaaS vendors must adjust pricing models as agentic AI transforms the industry RSM US
  20. Includes the practical bit others skip: define 'resolved' in the contract. softwareseni.com Article · How Founders Use AI SaaS pricing is shifting from per-seat to usage and outcome SoftwareSeni
  21. The stat everyone quotes, with the integration story behind it. fortune.com Article · How Founders Use AI MIT report: 95% of generative AI pilots at companies are failing Fortune
  22. Names the 'prompt doom loop' that kills adoption inside companies. salesforce.com Article · How Founders Use AI Why 95% of AI Pilots Fail, and What the Other 5% Do Differently Salesforce
  23. An agent-builder's readthrough of the MIT NANDA findings. beam.ai Article · How Founders Use AI 95% of Enterprise AI Pilots Are Failing: MIT Report Reveals Why Beam AI
  24. The testing-company view: winners treat agents as software, with rigor. tricentis.com Article · How Founders Use AI Why 95% of AI pilots fail, and what it takes to scale in the agentic era Tricentis

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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
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