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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. Shows what agentic analysis looks like when it has access to your warehouse, not just a CSV. hex.tech Article · How Founders Use AI Introducing the Notebook Agent Hex
  2. An AI-native spreadsheet with a built-in analyst, a glimpse of the category's direction. rows.com Tool · How Founders Use AI Rows AI: analyze and transform data with AI Rows
  3. Rare quantitative accuracy data comparing AI spreadsheets on identical tasks. rows.com Article · How Founders Use AI Introducing the AI Spreadsheet Benchmark Rows
  4. A practitioner's field notes rather than a spec-sheet comparison. lightcapai.medium.com Article · How Founders Use AI Claude vs ChatGPT vs Gemini (2025): A Comparative Analysis from the Trenches Faruk Alpay
  5. Frames the market as four lanes (chat, notebook, spreadsheet, warehouse) so you pick by workflow. buildmvpfast.com Article · How Founders Use AI Best AI for Data Analysis: ChatGPT, Hex, Julius, Deepnote BuildMVPFast
  6. A small-business test across real tasks, closest to a founder's daily mix. thelittledesigngroup.com Article · How Founders Use AI ChatGPT vs Gemini vs Claude: We Tested All 3 for Business The Little Design Group
  7. A week-long real-usage review from an emerging-market lens, not a sponsored skim. techpoint.africa Article · How Founders Use AI I tested Julius AI for 7 days: here is my honest review Techpoint Africa
  8. Explains how schema-aware SQL generation actually works and its real accuracy numbers. builder.ai2sql.io Guide · How Founders Use AI Text-to-SQL Complete Guide: Tools, Accuracy, Real Examples AI2SQL
  9. Covers the metadata-only options that never send your actual rows to the model. selectstar.com Article · How Founders Use AI Best Text-to-SQL Tools for AI Analytics Select Star
  10. The best-known open-source route to chatting with your own SQL database. vanna.ai Tool · How Founders Use AI Vanna 2.0: build agents your users can actually use Vanna AI
  11. Video · How Founders Use AI Vanna AI: Build SQL AI Chatbots To Talk To Database (open source) Universe of AI
  12. Video · How Founders Use AI Text to SQL with Ollama and Vanna, locally, with any database Fahd Mirza
  13. Video · How Founders Use AI Vanna: Chat (RAG) With SQL Databases MG
  14. A database performance veteran connects Claude straight to Postgres, no code layer. kylehailey.com Article · How Founders Use AI Natural Language Access to Postgres with Claude Desktop and MCP Kyle Hailey
  15. The security-first version: least-privilege roles and network isolation done right. tailscale.com Guide · How Founders Use AI Securely connect Claude Code to Postgres via MCP Tailscale
  16. A step-by-step Docker setup an ops-minded founder can follow in an evening. opstree.com Guide · How Founders Use AI The Ultimate Guide to Postgres MCP for Claude Desktop OpsTree
  17. The fastest no-code path if you just want to ask your database questions today. windsor.ai Guide · How Founders Use AI How to Connect PostgreSQL to Claude in 1 Minute (No-Code MCP) Windsor.ai
  18. A first-person build log with the mistakes left in, useful for realistic expectations. medium.com Article · How Founders Use AI Building My First MCP Server: Connecting Claude to PostgreSQL Umar M
  19. A free-to-try generator that works from just your schema, no data upload. text2sql.ai Tool · How Founders Use AI Text2SQL.ai: text to SQL and AI query generator Text2SQL.ai
  20. Compares the field including which tools process metadata only, a key privacy line. text2sql.ai Article · How Founders Use AI Best SQL AI Tools in 2025: Complete Comparison Guide Text2SQL.ai
  21. A free schema-aware converter, handy for one-off queries without a subscription. chartdb.io Tool · How Founders Use AI ChartDB Text to SQL converter ChartDB
  22. Engineers debating where text-to-SQL breaks, the caveats vendors won't tell you. news.ycombinator.com Thread · How Founders Use AI Vanna.ai: Chat with your SQL database (Hacker News discussion) Hacker News
  23. Video · How Founders Use AI How to do AI analysis you can actually trust (audio) Lenny's Reads
  24. Spotify version for founders who live in podcasts. open.spotify.com Podcast · How Founders Use AI How to do AI analysis you can actually trust (Spotify) Lenny's Reads

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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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