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. A founder publicly sharing his AI-referral numbers, the benchmark everyone quotes. x.com Thread · How Founders Use AI ChatGPT now refers 10% of new Vercel signups Guillermo Rauch (Vercel)
  2. A quick alternative walkthrough including the no-setup filter method for a first look today. fatjoe.com Guide · How Founders Use AI This Is How To Track AI Traffic (in GA4) FATJOE
  3. Explains how ChatGPT ranks products: metadata quality, price, availability, and seller status. openai.com Article · How Founders Use AI Powering Product Discovery in ChatGPT OpenAI
  4. The actual front door: where you apply and submit your product feed. chatgpt.com Guide · How Founders Use AI Power product discovery in ChatGPT (merchant portal) OpenAI
  5. The exact feed spec your developer needs, straight from the source. developers.openai.com Guide · How Founders Use AI Product Feeds Specification: Agentic Commerce OpenAI
  6. Explains how shopping results are generated and why they are not ads. help.openai.com Guide · How Founders Use AI Shopping with ChatGPT Search (help article) OpenAI
  7. Perplexity's own explanation of its shopping experience and one-click checkout. perplexity.ai Article · How Founders Use AI Shop like a Pro: Perplexity's AI shopping Perplexity
  8. A practical walkthrough of joining Perplexity's free merchant program. webfx.com Article · How Founders Use AI Meet the Perplexity Merchant Program: What Ecommerce Stores Need to Do WebFX
  9. Shopify's official guidance, directly relevant since Shopify stores get native AI-surface access. shopify.com Guide · How Founders Use AI Perplexity Shopping: How to Optimize Your Store for AI Shopify
  10. A field-tested feed setup guide covering the gotchas the spec does not mention. alhena.ai Guide · How Founders Use AI ChatGPT Product Feed: How to Submit & Set Up Alhena AI
  11. Covers the overlooked setup details that decide whether Perplexity recommends you. alhena.ai Guide · How Founders Use AI Perplexity Merchant Program: What Most Sellers Miss Alhena AI
  12. A feed-management vendor's deep dive into field-level requirements and refresh cadence. lengow.com Article · How Founders Use AI ChatGPT Product Feed: specification for ChatGPT Shopping, Agentic Commerce Lengow
  13. Maps the protocols and platform moves so you bet on the right rails early. commercetools.com Article · How Founders Use AI 7 AI Trends Shaping Agentic Commerce commercetools
  14. Payments-industry data on how fast delegated AI purchasing is actually arriving. checkout.com Guide · How Founders Use AI Agentic Commerce Report: How AI Is Reshaping Brand Competition Checkout.com
  15. Covers the fulfillment angle: agents evaluate delivery reliability, not just price. nshift.com Article · How Founders Use AI The rise of agentic commerce: How AI agents will shop for your customers nShift
  16. A brand-marketer's view of keeping customer relationships when an agent is the shopper. braze.com Article · How Founders Use AI Agentic Commerce: A Complete Guide for Brands Braze
  17. An end-to-end checklist from feed to product page copy for ChatGPT Shopping. e2msolutions.com Guide · How Founders Use AI How to Get Your Products Discoverable on ChatGPT Shopping E2M Solutions
  18. A large consumer brand and an AEO platform compare notes on winning AI-driven purchase journeys. podcasts.apple.com Podcast · How Founders Use AI Expedia x Profound: Competing in an AI-Driven Search World Expedia & Profound
  19. The most complete step-by-step correction workflow from a neutral trade publication. searchengineland.com Guide · How Founders Use AI How to identify and fix AI hallucinations about your brand Search Engine Land
  20. Frames AI answers as a reputation surface you must manage like reviews or press. searchengineland.com Article · How Founders Use AI AI and online reputation: How to stay in control Search Engine Land
  21. Distinguishes retrieval errors (fixable in days) from training errors (fixable in model cycles). maxaeo.ai Article · How Founders Use AI ChatGPT Wrong Information About My Company? How to Fix It MaxAEO
  22. Includes the data point that 61% of brand-fact errors trace to a live cited page. derivatex.agency Guide · How Founders Use AI How to Fix Brand Hallucinations in ChatGPT (Step by Step) Derivatex
  23. Explains entity conflation, the classic failure mode for startups with common names. geotoolbox.ai Article · How Founders Use AI AI Hallucinations: Why AI Gets Your Brand Wrong & How to Fix It GEO Toolbox
  24. A clear technical explainer of why confident wrongness happens at all. context-link.ai Article · How Founders Use AI ChatGPT Hallucination: Why It Makes Things Up & How to Fix Context Link

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 →