https://kbcafe.com/ New tools, AI courses, guides, and posts from KB Cafe, an interactive AI knowledge base, freshly brewed. en-us Sat, 04 Jul 2026 12:00:00 GMT https://kbcafe.com/blog/building-stocktools-ai https://kbcafe.com/blog/building-stocktools-ai Sat, 04 Jul 2026 12:00:00 GMT Build in Public A build-in-public tour of StockTools.AI, the newest site in our network: a free, filing-backed research platform that tracks Congress trades, insider buys, whale 13F holdings, CEO pay, and AI research, all built with AI on top of public SEC data, for investors and traders. https://kbcafe.com/blog/learn-by-doing https://kbcafe.com/blog/learn-by-doing Sat, 04 Jul 2026 12:00:00 GMT Build in Public Our biggest update yet: interactive practice interleaved into lessons (try it live in the post), build-this capstones on every path, a streak and XP system, a learning path builder that composes real vetted pages, and two new guides. All free, no account, in your browser. https://kbcafe.com/blog/what-happens-when-anthropic-goes-down https://kbcafe.com/blog/what-happens-when-anthropic-goes-down Tue, 30 Jun 2026 12:00:00 GMT AI When Claude has an outage, dozens of AI tools degrade at once while their own status pages stay green. What an upstream provider outage looks like, why it's so confusing to debug, and how to tell in seconds whether it's you, your tool, or the model underneath. https://kbcafe.com/blog/flashcards-til-and-resources https://kbcafe.com/blog/flashcards-til-and-resources Sat, 27 Jun 2026 12:00:00 GMT News Three new ways to make AI knowledge stick: spaced-repetition flashcards built from the dictionary, a Today I Learned stream of bite-size snippets, and free downloadable templates with no email wall. All client-side, no account. https://kbcafe.com/blog/hands-on-coding-with-ai https://kbcafe.com/blog/hands-on-coding-with-ai Fri, 26 Jun 2026 12:00:00 GMT News New: a Coding with AI track with an interactive prompt builder and a spot-the-hallucination exercise, an MCP servers lesson with a match-the-server quiz, and a CSS starter with a live editor. Built to be used, not just read. https://kbcafe.com/blog/the-study-window https://kbcafe.com/blog/the-study-window Mon, 22 Jun 2026 12:00:00 GMT Build in Public A resizable second window that docks on the right so you can keep the knowledge map, a reference, or a tool open beside whatever you are reading. How it works, how to open it, and when it earns its keep. https://kbcafe.com/blog/beginner-guide-to-ai https://kbcafe.com/blog/beginner-guide-to-ai Sun, 21 Jun 2026 12:00:00 GMT News A complete, no-jargon guide to AI for people with zero background, plus an easy way to share it with anyone who wants to learn the simplest way possible. https://kbcafe.com/blog/ai-agent-blanked-26-files https://kbcafe.com/blog/ai-agent-blanked-26-files Sat, 20 Jun 2026 12:00:00 GMT Build in Public A postmortem: an AI coding agent null-wrote 26 of my source files. Why git only saved half, how I rebuilt the rest from build output and verified every byte, and the rule I locked in. https://kbcafe.com/blog/building-the-prompt-optimizer https://kbcafe.com/blog/building-the-prompt-optimizer Fri, 19 Jun 2026 12:00:00 GMT Build in Public We turned six focused prompt tools into one flagship, without deleting any of them. The real product decision behind composing tools into a mega-tool. https://kbcafe.com/blog/introducing-ai-business https://kbcafe.com/blog/introducing-ai-business Fri, 19 Jun 2026 12:00:00 GMT Build in Public We've opened a new section, AI Business, to cover the half of the journey nobody teaches honestly: getting traffic and making money. Plus our first case study is live. https://kbcafe.com/blog/the-blog-that-lived-at-this-address https://kbcafe.com/blog/the-blog-that-lived-at-this-address Fri, 19 Jun 2026 12:00:00 GMT Open Web Before KB Cafe was an AI knowledge base, this domain ran one of the early web's RSS blogs. The story of iBLOGthere4iM, and where it lives on. https://kbcafe.com/feed-preview https://kbcafe.com/feed-preview#2026-06-19 Fri, 19 Jun 2026 12:00:00 GMT Tool Paste an RSS or Atom feed and read it as a clean, human-friendly list, fully in your browser. https://kbcafe.com/rss-to-json https://kbcafe.com/rss-to-json#2026-06-19 Fri, 19 Jun 2026 12:00:00 GMT Tool Turn any RSS or Atom feed into clean JSON for your app, no server round-trip. https://kbcafe.com/blog/the-return-of-kb-cafe https://kbcafe.com/blog/the-return-of-kb-cafe Thu, 18 Jun 2026 12:00:00 GMT News kbcafe.com was a go-to developer resource in the early 2000s. Here's what it is now, and why we brought it back. https://kbcafe.com/feed.xml https://kbcafe.com/feed.xml#2026-06-18 Thu, 18 Jun 2026 12:00:00 GMT Feature Fitting for an RSS-era domain: subscribe in any reader and new tools, courses, and posts arrive automatically. https://kbcafe.com/learn-ai-agents https://kbcafe.com/learn-ai-agents#2026-06-18 Thu, 18 Jun 2026 12:00:00 GMT Course A free, hands-on path from idea to a working agent architecture, each step pairing a concept with a tool. https://kbcafe.com/learn-ai-infrastructure https://kbcafe.com/learn-ai-infrastructure#2026-06-18 Thu, 18 Jun 2026 12:00:00 GMT Course The building blocks of modern AI, from context windows to agents, in order. https://kbcafe.com/map https://kbcafe.com/map#2026-06-18 Thu, 18 Jun 2026 12:00:00 GMT Feature An interactive graph of every concept, tool, and lesson, and how they connect. https://kbcafe.com/context-budget-analyzer https://kbcafe.com/context-budget-analyzer#2026-06-18 Thu, 18 Jun 2026 12:00:00 GMT Tool See exactly what fills a model’s context window, ranked by the biggest offenders. https://kbcafe.com/blog/rss-and-the-open-web-in-2026 https://kbcafe.com/blog/rss-and-the-open-web-in-2026 Wed, 17 Jun 2026 12:00:00 GMT Open Web Everyone declared RSS dead a decade ago. It's quietly running newsletters, podcasts, and the fediverse the whole time. https://kbcafe.com/ai https://kbcafe.com/ai#2026-06-17 Wed, 17 Jun 2026 12:00:00 GMT Guide Plain-English explainers for MCP, RAG, embeddings, tool calling, structured outputs, and more. https://kbcafe.com/blog/rss-and-ai https://kbcafe.com/blog/rss-and-ai Tue, 16 Jun 2026 12:00:00 GMT AI LLMs are starving for clean, structured, permissioned content. A 25-year-old format turns out to be a good answer.