What people do with Claude

• Search state databases for unclaimed property under old names

  The poster asked Claude to search unclaimed property databases in every state they lived in, using their name and old names.

  3 accounts

• Prepare federal and state tax returns from a folder

  A Redditor pointed Claude at their tax folder and asked it to do their taxes; they say returns for 2024 and 2025 came back in 15 minutes and matched TurboTax, but needed mailing.

  2 accounts

• Run Monte Carlo simulations on a retirement portfolio

  Poster used Claude to rebuild their retirement portfolio and test sequence-of-returns risk by inserting past bear markets into growth paths.

• Codex

  Investigate market moves and alerts with an agent on your charts

  OpenChart lets Claude or Codex annotate chart setups, write indicators, and investigate price alerts, saving research to a local workspace.

• Sort tax documents and fill IRS forms

  Author had Claude sort wage forms, 1099s and brokerage summary, extract numbers, and fill blank IRS forms, but did not let it file via browser automation.

• Generate a daily personalized trading research report from brokerage data

  Lonnie VanZandt's Claude-based assistant reads his Schwab positions and watchlist via MCP, sweeps news and Fed sources, and writes a daily report.

• Consolidate bank statements into a spending dashboard with Claude

  Miles Deutscher reportedly uses Claude to merge monthly bank statements into a dashboard, visualize spending, compute metrics and analyze portfolio allocation.

• File tenant complaints against a landlord automatically

  A Claude agent scraped violation databases and filed 14 complaints with the NYC housing board; the landlord was reportedly fined and the rent increase blocked.

• ChatGPT

  Analyze budgets and research investments from bank data

  The poster pipes bank transaction data into ChatGPT and uses Claude for budget analysis, investment research, and summarizing and comparing financial reports.

• Run your side of a home insurance claim

  After a burst pipe, the user has Claude read the policy, organize receipts, track adjuster messages and delays, log correspondence and estimates, and challenge coverage decisions.

All Money, Bills & Benefits use cases, from every agent

• Triage support emails and draft refund-policy replies

  A consultant built a Claude agent that reads support Gmail, looks up orders, applies refund policy, drafts replies for human approval and creates triage records with optional Slack alerts.

  4 accounts

• Prospect, score leads and run outbound email sequences

  An agent scans Apollo.io and job boards twice daily for ICP-matching prospects, scores leads, writes 3-email sequences with Claude, sends follow-ups, and pauses on replies with human approval.

  3 accounts

• Monitor Reddit, draft replies and schedule posts

  A commenter built a personal Claude agent acting as social media manager that monitors Reddit, drafts replies, and schedules posts.

  2 accounts

• Run real estate transactions with autonomous agents

  A poster built a platform where agents, including a SellerBot, handle listings, pricing strategy and buyer inquiries, built with Claude as the coding assistant.

• Analyze competitor ads and generate on-brand ad creatives

  An autonomous Ad Agent built on the Claude Agent SDK finds competitors, analyzes their ads, generates on-brand creatives and packages a shareable report.

• Handle Shopify support tickets, orders and refunds

  An AI agent built on Claude and GPT cancels orders, tracks shipments, creates return labels and processes refunds for Shopify merchants' support tickets (vendor listing).

• Fix Shopify SEO and find ad waste with a Claude agent

  A Claude-based agent analyzed a Shopify store, fixed SEO issues raising the score to 95, found ad waste, tested ideas and checked AI visibility.

• Email daily deal briefs from Zillow listings to real estate agents

  A Zillow scraper feeds Claude to produce daily briefs on new listings, price cuts and outreach scripts, emailed to 47 paying real estate agents.

• Run a Monday competitor-monitoring brief from job listings

  Claude is set up as an agent that browses competitors and reads their job listings every Monday morning to infer what they may do next.

• OpenClaw

  Schedule social videos and posts through an agent

  Users relay that their AI agent installed a scheduling skill, linked social accounts and scheduled about 100 videos; these are vendor-relayed testimonials.

All Sales, Marketing & Support use cases, from every agent

• Plan parties and shop for products with Claude

  A commenter has Claude plan events minute by minute with menus, and act as a personal shopper comparing prices, return policies and shipping costs across sites.

• ChatGPT

  Compile and filter apartment listings

  A renter used Claude and ChatGPT to compile property-management sites and filter listings; results were decent but included some out-of-parameter listings, and he found a place through a friend.

• Build a charting tool from blood test PDFs

  Matt Stockton gave Claude his MyChart blood test PDFs and it produced a web app charting results over time and flagging abnormal values in about five minutes.

• Run Claude on a cronjob for morning briefings and email tasks

  User built a Claude-in-a-loop with cron that produces morning briefings and podcasts and handles tasks emailed or texted to it.

• Run a personal doorman agent on a $7 VPS

  A public agent greets site visitors over IRC while a private one handles email and scheduling, capped at $2 a day.

• OpenClaw

  Automate Instagram DMs to potential matches

  A developer built an OpenClaw and Claude script that browses Instagram, finds potential matches and sends DMs for him.

All Life Admin & Home use cases, from every agent

• Run side hustle invoicing, payments and bookkeeping

  A side hustler connected their bank to Claude via MCP and QuickBooks so an agent handles invoicing, contractor payments, expense tracking and bookkeeping.

  2 accounts

• Run routine store checks on delayed orders and stock

  A commenter runs Claude against their store to check delayed orders, stalled tracking, and stock issues; the poster is connecting an assistant via MCP.

• Draft email replies and add calendar invites

  A writer built a scheduled Claude agent using Gmail and Calendar connectors to draft replies and add invites to the calendar.

• Record meetings and suggest answers live from uploaded files

  An open-source Mac recorder transcribes calls and, using the user's uploaded files, suggests answers when it hears questions.

• Make auditable rule-based decisions with RAG-written explanations

  A Rete rule engine decides loans, fraud and triage cases, then RAG over policy documents has an LLM explain the verdict, with an MCP server available.

• Test AI annotations on student problem sets

  A chemistry professor ran 11 students' problem sets through Claude to see if its annotations could help manual grading; the project was accidentally left public, exposing student information.

All Work & Operations use cases, from every agent

• Plan and order a week of groceries with Claude

  The poster used Claude on Mac and iOS to plan and order a week of groceries, with partial success, and will keep using it up to the grocery-list step.

  5 accounts

• Let Claude buy a game autonomously

  The poster built payment infrastructure so Claude could complete a game purchase on its own when told to, in about 60 seconds.

• ChatGPT

  Let AI agents search a store, build carts, and prep checkout

  A store is set up so Claude or ChatGPT agents can search the catalog, build a cart, and apply promo codes, then hand over a checkout link before payment.

• Meta Muse

  Plan meals and place grocery orders from a Google Doc

  Claude and Muse handle meal planning, pantry inventory and recipe tracking, then Muse reads a Google Doc and places the grocery order in a browser, with the poster confirming payment from their phone.

• Let AI agents place DoorDash orders

  DoorDash's dd-cli beta lets agents order food, with a demo of Claude completing a full order end to end.

All Shopping & Errands use cases, from every agent

• Pair-program with LLMs on personal projects

  The author uses Claude web and Jules (Gemini with GitHub integration) as pair-programming partners, navigating while coding locally and submitting back.

• ChatGPT

  Build a bare-bones Windows VNC client from an email brief

  The author emailed Claude a spec for a minimal VNC viewer targeting Windows 10 over a local SSH tunnel, to be built on a Mac and delivered with a checksum.

• Let an agent extend its own code inside a Docker sandbox

  An agent built on Claude and Agno implements capabilities in its own source code in Docker, with changes validated, committed, or rolled back; it reached 21+ capabilities.

• Build a C compiler with a team of parallel agents

  Anthropic's engineering write-up on tasking Opus 4.6 agent teams with building a C compiler.

• ChatGPTCursor

  Build a mental models framework with a multi-agent dev team

  A solo founder used Claude, ChatGPT, Windsurf and Cursor as role-based team members to design, test and deploy a 120-model mental-models framework and MCP server.

All Software & DevOps use cases, from every agent

• Try to book a Warsaw to London trip with Claude

  The poster tried to have Claude fully book flights and hotel via Expedia and Kiwi connectors, found them poor, and ended up building a travel booking project instead.

• Book a restaurant table through a Resy connector

  A PCWorld writer asked Claude to book a table for three in Midtown Manhattan via the Resy connector; it picked a restaurant but the exchange was clunky, with raw JSON and permission prompts.

• ChatGPT Agent

  Book restaurant tables via OpenTable and Resy

  In a hands-on test, Claude showed Resy availability but could not book, and ChatGPT's agent clicked through OpenTable but set the wrong party size.

All Travel & Bookings use cases, from every agent

• Search literature and write notes into Zotero

  A researcher uses Claude to search Google Scholar, follow citations, query a Zotero library in natural language, and write summary notes into Zotero or Obsidian.

  2 accounts

• Track competitor prices and contacts into Google Sheets

  A Claude-powered scraper agent monitors competitor sites hourly, pulling pricing, company details and contacts into Google Sheets, replacing manual research.

• Reverse-engineer a book file format to search it

  After the RAG indexer crashed on an uploaded book, Claude used Unix commands to work out the file format and grep the book manually.

All Research & Knowledge use cases, from every agent

• ChatGPT

  Generate LEGO CAD models in LDraw with AI agents

  A toolset and docs let ChatGPT and Claude agents write LDraw source files that become LEGO CAD models, packaged as a dockerized web app.

  2 accounts

• Recreate a video ad as a JavaScript animation

  The author had Claude recreate a downloaded ad video as a pure JavaScript animation with the original audio, working autonomously with ffmpeg in under an hour.

• CodexGemini

  Race three models to build a Counter-Strike clone

  InstantDB had Codex, Opus, and Gemini each try to build a multiplayer shooter.

• Let agents play computer games all day

  Agents including Claude Opus and o3 were given computers to independently play games like 2048 for hours.

• Find exploitable bugs in smart contracts

  Anthropic's red team reports agents finding $4.6M worth of blockchain smart contract exploits.

• Reverse engineer a classic game ROM via Ghidra MCP

  The author connected Claude to Ghidra through MCP to analyze and rename functions in an Atari River Raid ROM.