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Your Competitor Changed Their Pricing Page at 2am. You Found Out Next Week.

#startup #saas #python #productivity

Ask founders how they track competitors and you'll hear the same answer: a spreadsheet and "I check when I remember."

A 52-post analysis on r/SaaS put it bluntly — competitor monitoring is spreadsheets and manual checks. Meanwhile competitors don't change on schedule. They change prices at 2am, quietly update their policy page on a Friday, and ship a feature on a holiday weekend. If your check-in cadence is "weekly-ish," you're structurally guaranteed to be the last to know.

What actually needs monitoring (and what doesn't)

You don't need an enterprise CI platform. For 90% of indie founders, the answer is a handful of pages:

  • The pricing page (the single highest-signal page on any competitor's site)
  • The changelog / blog (launches, pivots, new positioning)
  • The features page (what they're quietly adding)
  • Terms/policy pages (fine-print changes that foreshadow strategy shifts)

The problem isn't knowing which pages. It's that checking them by hand doesn't scale past "I remembered today."

What I built: a change watcher that runs itself

A single-file Python CLI (pure standard library, zero dependencies) that watches any list of pages and tells you exactly what changed:

  • Visible-text extraction — pulls readable content, filters out scripts, styles, nav bars and footer boilerplate so redesigns don't create false alarms
  • SHA-256 content fingerprints — stable per-page baseline; first run builds it, every run after compares
  • Line-level diff output — not just "something changed," but which lines were added and removed ("$49/mo" → "$59/mo" jumps out immediately)
  • Markdown or JSON reports — read it yourself, or pipe it into your dashboard
  • Exit code contract — 0 = no changes, 1 = changes detected, 2 = error. Which means it bolts straight into cron: 
# Every morning at 7am, check all competitor pages
0 7 * * * python competitor_watch.py --config pages.txt --json || curl -s https://your-webhook.example/alert
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  • Your data stays local — page list and baselines live in ~/.competitor_watch/, nothing is uploaded anywhere

Why "check when I remember" loses

Pricing changes are the cheapest competitive intelligence that exists — and the most expensive to miss. A competitor undercutting you by 20% costs you deals for as long as it takes you to notice. The fix isn't discipline, it's automation: a baseline, a fingerprint, and a cron entry.

If you're a founder, indie hacker, or marketer who's ever said "wait, when did they add that?" — the full kit (watcher + config management + README with cron recipes) is on AgentChip. One-time purchase, no subscription, your data never leaves your machine.

Related: if you also need to know when a competitor's site goes *down (vs. changes), that's a different job — uptime monitoring — and we cover that too.*

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