Real AI agent use cases, with sources and setup prompts
Short answer: Start with the cheapest method that works: a crawler that turns pages into clean Markdown or a data source exposed over MCP, and only use a full browser agent for sites that need clicks or a login. Builders below crawled websites into Markdown for their AI, pulled Google Maps business listings into Claude Code over MCP, had an LLM write a CSS selector once and call the model again only when the page changed, let agents work in their own signed-in Chrome in background tabs, and used a browser agent to sort Discord feedback into bugs and feature requests. Respect each site's terms and robots rules, go slowly, and do not collect personal data you have no right to.
Scrapers, crawlers and browser agents people built or used with AI to pull data from websites, each linked to its source. 22 matching use cases below, each with a public source.
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codyschneider has Claude Code scrape your site into a brand style guide (colors, fonts, logo rules, photo style, tone), study competitors' ads from the Meta Ad Library, then generate statics with GPT Image 2.
isbkch shares a prompt for Cursor, Claude Code or Lovable that fixes AI-built apps shipping as a blank root div, so crawlers get titles, previews and content.
ego lite is a browser for agents like Codex and Claude Code that shares your logged-in state; agents work in their own Spaces in parallel while you keep browsing, and it installs as a skill.
A cold-email operator had his chief-of-staff bot install the Codex CLI on its computer and sign in with ChatGPT, plus an API key for cheaper models. Grok Bot keeps the judgment calls (Calendly booking, CRM follow-ups) and offloads CSV classification, scrapers, spintax and transcript summaries.
CrawlHive is an open-source memecoin safety tool for Solana: it scores each token on 7 checks (market, holders, bundles, clones, dev, Telegram, X) for a 0 to 100 verdict, reads contract bytecode for 134 dangerous functions, and lets you write your own crawlers in plain language that send signals to Telegram. It also works over MCP and with Grok Bot.
Finding that Hermes Agent is a chat assistant rather than a scraper, a user built her own scraper inside it and asked it to return verified leads.
The author runs scheduled Cursor cloud agents every day: one scrapes Wispr, Zoom and Gemini meeting transcripts into Obsidian, one triages Gmail, one updates a CRM with new leads, and one builds a morning briefing that Grok Bot prints out.
A retiree has AI write software for his own life. His kids' school app was painfully slow, so he had AI write something that logs in, pulls new updates and feeds them to the AI that manages his calendar and to-do list.
Built Jevcrawl, an MCP and CLI crawler that finds answer pages more often without calling an LLM while crawling.
open-browser-use lets AI agents control your already logged-in Chrome instead of a fresh browser with no sessions.
DeepScrape has an LLM generate a CSS selector once, reuses it for free, and calls the model again only when the page changes; it runs as an MCP server for Claude or Cursor and has a Site-to-MCP mode.
Open-sourced JobPilot, an MCP server with no LLM of its own that drives your logged-in Chrome for email, LinkedIn Easy Apply and ATS forms and learns from failures.
agent-chrome-relay lets AI agents use your real Chrome, signed in as you, working in background tabs.
G Maps Crawl is a remote MCP server that connects Claude Code, Cursor, VS Code or Codex to Google Maps business search and structured listing data.
Vibe-coded a research agent in Claude Code that scrapes the top TikToks in a niche, has AI break down why they work and writes a brief a team can film.
Built Browser Harness so an LLM can complete arbitrary browser tasks with fewer guardrail dead-ends.
Jev reads a table of a page's controls and picks the operation and target; the demo logs into Hacker News and runs a search in 8 seconds.
A geophysicist who lost his job built ai-job-search on Claude Code: it scrapes postings, scores how well each fits him, tailors the CV and cover letter, then preps the interview. He got hired, and the repo picked up 2,232 GitHub stars in a day.
Built a personal MCP server so Claude can pull Reddit content directly instead of relying on brittle UI scraping.
Agentability is a weekly public experiment where a real AI agent attempts ten everyday web errands and every transcript is published verbatim.
Markdownee crawls web content into Markdown, text or HTML, built on a TypeScript port of the Trafilatura extractor with Crawlee for crawling.
Built Nightcrawler, a local AI pentesting agent that runs on a smartphone.
How to make faceless YouTube videos with AI · How to automate work with n8n and AI · How to vibe code an app with Claude Code · How to build AI agents for SEO and ads · How to run multiple coding agents together · How to build an MCP server for AI agents · How to add memory to coding agents · How to secure vibe-coded apps and agents · How to observe and debug AI agents · How to build agent memory and context layers · How to control coding agents from your phone · How to add payments to vibe-coded apps · How to run local LLMs with AI agents · How to set up Grok Bot agents for real work · How to build with Gemini 4 Argon and Gemini agents · How to use AI agents for taxes, bills and budgets · How to make AI video ads and Reels with agents · How to set up Hermes Agent workflows · How to vibe code a game with AI · How to replace SaaS subscriptions with vibe-coded tools · How to use AI agents for errands, calls and shopping · How to use Cursor agents and automations · How to make 3D scenes and models with AI and Blender · How to use Claude Code skills and plugins · How to cut AI coding agent costs and token use · How to automate a small business with AI agents · How to compare AI models on the same prompt · How to build hardware projects with AI agents · How to make AI music videos and songs · How to use AI agents with Obsidian and your notes · How to build apps and games for your kids with AI · How to use ChatGPT for real projects and everyday tasks · How to make AI agents ask for approval before they act · How to build AI trading and investing agents · How to build AI agents that make and answer phone calls · How to plan meals and groceries with AI agents · How to use AI agents for fitness and health · How to undo, checkpoint and stop runaway coding agents · How to use AI agents for job hunting · How to automate social media posts with AI agents · How to build a smart home and voice assistant with AI agents · How to make money with AI agents · How to build a website with AI agents · How to use AI agents for research and science · How to build an iPhone or Android app with AI · How to automate email and your inbox with AI agents · How to use AI agents for Linux, servers and homelabs · How to build Telegram, Discord and WhatsApp bots with AI · How to research memecoins and crypto with AI agents · How to remove ads and bloatware from your smart TV with AI · How to self-host AI agents on a Raspberry Pi, Mac mini or homelab · How to learn anything with an AI tutor · How to build an AI second brain and personal wiki · How to reverse-engineer and revive old devices with AI · How to edit videos with Claude Code and Codex · How to set up an AI family assistant · How to make a Godot, Unity or 3D game with AI agents · How to build a custom Android TV or Google TV launcher with AI · How to use Claude Code and Codex together · How to build your own invoicing and bookkeeping app with AI · How to make a browser arcade game with AI · How to make a product demo or launch video with AI · How to fix Wi-Fi and secure your home network with AI · How to control Claude Code and Codex by voice · How to design a PCB and electronics with AI · How to save, share and resume coding agent sessions · How to run AI coding agents in a sandbox · How to make a multiplayer game with AI · How to let AI control your computer (computer use) · How to build a Mac menu bar app with AI · How to port code to another language with AI · How to make an AI animated short film or anime · How to build your own coding agent or harness · How to get notified when Claude Code or Codex needs you · How to build a Chrome extension with AI · How to use AI agents with Excel and Google Sheets · How to run Claude Code and Codex in a desktop app (T3 Code, Codex app, Claude Desktop) · How to make a song or album with AI · How to vibe code classroom apps and quizzes as a teacher · How to plan and book a trip with an AI agent · How to make motion graphics and animated videos with Claude Code · How to mod and reverse engineer games with AI · How to run AI agents overnight while you sleep · How to negotiate bills and get refunds with an AI agent · How to let an AI agent use your phone (iPhone and Android) · How to build a Polymarket bot with AI (and Kalshi) · How to use Claude Duet: real examples and tips · How to build private apps just for yourself with AI · How to design and 3D print things with AI agents · How to automate customer support with AI agents: real setups · How to find leads and automate sales outreach with AI agents · How to run a Shopify or online store with AI agents · How to launch an app and get your first users with AI · How to build a team of AI agents with a chief of staff · How to make a hand-tracking or gesture-controlled game with AI · How to test your app with AI agents before you ship · How to give an AI agent a budget or a card safely · How to share passwords and logins with an AI agent safely · How to get AI code review on your pull requests · How to review contracts, leases and fine print with AI · How to make slides and presentations with AI · How to take meeting notes and track follow-ups with AI · How to make a podcast with AI · How to use AI agents for security scans and threat intel · How to build a dashboard with AI agents · How to clone your voice and make AI voiceovers · How to make AI images, thumbnails and product photos · How to write a CLAUDE.md or AGENTS.md rules file · How to build an AI chatbot for your own documents · How to port or remake a classic game with AI · How to build a VST plugin or synth with AI · How to trigger AI agents with webhooks and events · How to find a home or rental with AI agents · How to track Claude Code and Codex usage limits
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