Explore · The library

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. Live per-model pricing so your cost model never goes stale. usagepricing.com Tool · How Founders Use AI AI Token Pricing Tracker UsagePricing
  2. A copyable taint-tracking and approval-gating pattern for your own build. github.com Tool · How Founders Use AI Lethal trifecta threat model (agentic patterns repo) nibzard (awesome-agentic-patterns)
  3. The open dataset and annotator to diagnose your own multi-agent failures. github.com Tool · How Founders Use AI MAST: Multi-Agent System Failure Taxonomy UC Berkeley Sky Computing Lab
  4. Founder-specific starting point with real stories of non-technical founders shipping first drafts themselves. lovable.dev Tool · How Founders Use AI Lovable for founders Lovable
  5. The strongest AI-assisted builder when the page's design polish is the point. framer.com Tool · How Founders Use AI Framer landing pages Framer
  6. The fastest way to get task-based usability data on a clickable prototype. maze.co Tool · How Founders Use AI Maze prototype testing Maze
  7. Real human panels with AI synthesis, highlight reels, and fraud detection on top. usertesting.com Tool · How Founders Use AI UserTesting AI: AI-powered UX platform UserTesting
  8. The leading tool for AI-simulated interviews; try it knowing its limits. syntheticusers.com Tool · How Founders Use AI Synthetic Users Synthetic Users
  9. Prompt to real React Native app, submittable to the App Store and Google Play. rork.com Tool · How Founders Use AI Rork: create mobile apps using AI in minutes Rork
  10. Free, Gemini-powered mobile and web UI generation with code export. stitch.withgoogle.com Tool · How Founders Use AI Stitch: design with AI Google Labs
  11. Generates multi-screen mobile mockups from a prompt, editable by drag and drop. uizard.io Tool · How Founders Use AI Uizard Autodesigner Uizard
  12. Prompt-to-app inside Figma, strongest when design fidelity matters. figma.com Tool · How Founders Use AI Figma's free AI app builder Figma
  13. Another prompt-to-iOS-and-Android option worth benchmarking against Rork. manus.im Tool · How Founders Use AI Manus AI no-code mobile app builder Manus
  14. Studio-quality product shots from a phone photo, trusted by 80M+ users. photoroom.com Tool · How Founders Use AI Photoroom: AI photo editor and listing studio Photoroom
  15. Drag-and-drop lifestyle scenes around your product for ads and social. flair.ai Tool · How Founders Use AI Flair.ai: AI product photo generator Flair
  16. The most complete logo-plus-brand-kit generator, with vector files and licensing handled. looka.com Tool · How Founders Use AI Looka: logo design and brand identity for entrepreneurs Looka
  17. Free prompt-to-logo that flows straight into a brand kit you will actually use. canva.com Tool · How Founders Use AI Canva free AI logo generator Canva
  18. The tool that gets you a real vector SVG, which printers and app stores need. recraft.ai Tool · How Founders Use AI Recraft AI logo generator Recraft
  19. The most popular TypeScript toolkit for streaming AI features, with 25+ providers behind one API. github.com Tool · How Founders Use AI Vercel AI SDK Vercel
  20. A production-ready open-source chatbot with auth and persistence; fork it instead of starting from zero. github.com Tool · How Founders Use AI Vercel AI Chatbot template Vercel
  21. Practical recipes for attributing AI spend per user and per feature, which is how you find the leaks. docs.helicone.ai Tool · How Founders Use AI Helicone cost tracking cookbook Helicone
  22. Live price, speed, and latency comparison across 500+ endpoints; check before you commit spend. artificialanalysis.ai Tool · How Founders Use AI LLM API Providers Leaderboard Artificial Analysis
  23. The independent standard for comparing intelligence, speed, and price on one chart. artificialanalysis.ai Tool · How Founders Use AI LLM Leaderboard: Comparison of over 100 AI models Artificial Analysis
  24. Continuously updated rankings pulled straight from provider APIs; good second opinion. llm-stats.com Tool · How Founders Use AI LLM Stats: Compare 300+ models by intelligence, speed, price LLM Stats

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1327 questions GTM Go-to-market, from breaking in to how the best teams do it. 379 questions D2C Building a direct-to-consumer brand, India-first. 512 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 165 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 360 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 425 terms
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