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AI agentsMedium2 weekends$100 to $500Web app

Invoice Reader

Forward supplier invoices and get the key fields in a clean spreadsheet.

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The idea

Small business owners retype supplier invoices into their books. Invoice Reader takes forwarded PDFs and photos, extracts vendor, date, amounts and line items, and lets you review and export to CSV or QuickBooks. It organizes data and is not accounting advice.

Who it is for
Restaurant and retail owners who do their own books
How it makes money
Subscription by invoices per month
Suggested stack
Next.js, MySQL, Tailwind, hosted on a small VPS
Launch cost
$100 to $500

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web app called Invoice Reader. Start with login, a unique forwarding email address per account, an upload area for PDFs and photos, and an Invoices list with status (new, reviewed, exported).

PROMPT 2 OF 3

For each file, use an AI model to extract vendor name, invoice number, invoice date, due date, subtotal, tax, total and line items (description, quantity, unit price). Show the file and the extracted fields side by side for review and correction, and flag totals that do not add up.

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PROMPT 3 OF 3

Add CSV export and a QuickBooks bill export, a vendor list with spend per month, due date reminders by email, and Stripe billing tiers.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Invoice ReaderEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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