Real AI agent use cases, with sources and setup prompts
Money admin people handed to Claude, Grok Bot and local models, with what each one caught. 21 matching use cases below, each with a public source.
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Asked to review all subscriptions, Grok Bot found things the author missed, such as Revolut Premium already including ChatGPT they had been paying $20 for.
Before signing, the author had Grok Bot and Claude Code compare the return with W-2s and emails from their CPA.
A business owner's Grok Bot reconciles their Xero accounts every day, emails clients with overdue invoices on their behalf and reminds them about urgent emails.
With spare time and a Claude Max subscription, the author had Fable hack on Wine until desktop Microsoft Office ran on Linux with no virtual machine, then packaged the setup as Nix flakes.
Unable to afford an agency after spending $150 on one conversion, two Shopify founders built a hosted MCP with Codex that can inspect performance, find wasted spend and create or update campaigns, plus Google Analytics and Tag Manager.
A chess events company uses several bots to create Luma events, invoice clients and suggest graphics ideas.
Prompted an AI agent with sample invoices and let it build a workflow that sends invoice data to Google Sheets.
In one hour with Codex the author built a desktop app that projects your music, your Claude Code activity or your token bills as 3D particles.
A builder used their AI agents with the ToolJet MCP to build a back office for jobs, bookings, invoices and parts from one prompt in under 40 minutes.
The author's French accounting software had no API, MCP or CLI, so they built one and open-sourced it. Now their AI agent does the company's accounting and they just approve.
Pulse Local imports any bank CSV; a tuned Qwen3 0.6B model turns your question into a structured query, code does the math against your ledger and a 4B checker model double-checks it, with no data leaving the machine.
Built a connector that uses an OpenAI subscription you already pay for to turn PDFs into spoken audiobooks.
Built an n8n workflow that reads bank statement images, PDFs or CSVs and sorts every credit by source for tax consultants.
Had Grok Bot analyze his taxes.
Asked Grok Bot to find and cancel subscriptions she no longer used, such as Hulu and Apple Music.
Built SessClone as one ledger for Claude Code sessions across laptop, server and cloud, by person, device and project.
Grok Bot read an email thread with a financial advisor whose project fell through and who then billed $7,500, and suggested a reply.
Set up a finance bot that asked for his healthcare portal login and found a year-old surgery bill that had gone to collections without his knowledge.
The author's AI bot reads every bill email that hits the inbox and checks it against their budget.
After a paid removal service failed, the author open-sourced remove-your-data, a repo of instructions that tells your AI agent exactly how to get your phone, addresses and vehicles off people-search sites.
A CPA set up an AI agent that sends clients polite payment reminders.
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