SaaS

Email store owners a weekly report on competitor prices

A small tool checks the pricing pages of an online store's competitors and emails the owner a weekly report of what changed. Store owners pay a monthly fee so they no longer have to check by hand.

The hard part: keeping the price checker working as each competitor's pages change, and finding store owners willing to pay for it.

Setup 1 weekRuns $25/moYour time A weekly check-inNeeds ClaudeSupabaseVercelStripe

Who pays

Online store owners who check their competitors' prices by hand pay a monthly subscription for the weekly report. morpphhhaw reports that a product like this brings in $285 a month, which is the poster's own claim. The post does not say what each store pays, so any per-store price you set is a suggestion. One option is a higher plan for stores that want more competitors tracked.

How to build it

  1. Collect competitor pages from store owners

    Ask a few online store owners which competitor sites they check by hand. Save the links to those competitors' product and pricing pages.

  2. Build the price checker

    Use Claude Code to write a small script that visits each saved page, pulls out product names and prices, and stores them in Supabase.

  3. Run the check every week

    Put the script on Vercel with a scheduled job that runs once a week. Have it compare the new prices with last week's and list what went up, went down, or disappeared.

  4. Send each owner a short report

    Have Claude turn the list of changes into a short, readable summary. Send it to each store owner with an email service such as Resend.

  5. Charge a monthly subscription

    Set up a monthly plan with Stripe Payment Links and send the link along with the first free report.

Sources on X

  • morpphhhaw · May 24, 2026

    morpphhhaw describes a weekend project that monitors competitor pricing pages and sends weekly email reports to e-commerce store owners. The poster says it took 36 hours, $12 in API credits (pay-as-you-go AI usage), and one Claude Code subscription, and that it brings in $285/mo. These are the poster's own figures. They call it 'nothing revolutionary', just a fix for a painful manual process.

Ideas are curated from public posts and untested by us. Read the full note.