Replace a $39 a month purchase-tracking sheet for a resale business
CuriousCrateLab was paying $39 a month for a Google Sheet that logs what he buys on eBay for his Amazon business. He replaced it with his own app built with Claude that does exactly what he needs.
Source
@CuriousCrateLab on X · 2026-10-23
Written in our own words. Credit to the original author. Link checked 2026-10-24.
What they did
CuriousCrateLab was paying $39 a month for a Google Sheet that logs what he buys on eBay for his Amazon business. He replaced it with his own app built with Claude that does exactly what he needs.
Result (as claimed)
$468 a year back.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Gather the documents
Collect statements, bills, invoices or tax documents for the period you want reviewed.
Ask for an audit, not actions
Have Claude list findings, amounts and suggested next steps before it does anything.
Approve each action
Approve cancellations, disputes or payments one at a time. Never give an agent open-ended access to move money.
Track the result
Record what changed and what you saved so you can check it next month. This is not financial advice.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Replace a $39 a month purchase-tracking sheet for a resale business What the original author did: CuriousCrateLab was paying $39 a month for a Google Sheet that logs what he buys on eBay for his Amazon business. He replaced it with his own app built with Claude that does exactly what he needs. Reported result (as claimed by the author): $468 a year back. Source: https://x.com/CuriousCrateLab/status/2113458501150257247 Tools they used: Claude Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Replace a $39 a month purchase-tracking sheet for a resale business What the original author did: CuriousCrateLab was paying $39 a month for a Google Sheet that logs what he buys on eBay for his Amazon business. He replaced it with his own app built with Claude that does exactly what he needs. Reported result (as claimed by the author): $468 a year back. Source: https://x.com/CuriousCrateLab/status/2113458501150257247 Tools they used: Claude Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Replace a $39 a month purchase-tracking sheet for a resale business What the original author did: CuriousCrateLab was paying $39 a month for a Google Sheet that logs what he buys on eBay for his Amazon business. He replaced it with his own app built with Claude that does exactly what he needs. Reported result (as claimed by the author): $468 a year back. Source: https://x.com/CuriousCrateLab/status/2113458501150257247 Tools they used: Claude Category: Money Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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Guides for this use case
How to run a Shopify or online store with AI agents · How to use AI agents with Excel and Google Sheets
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