Dedicated price-monitoring SaaS like Prisync or Price2Spy start at $99+/month just to watch a handful of competitor pages. This n8n workflow does the same core job — daily price and stock checks with instant change alerts — as a one-time template you own outright: no subscription, no dashboard login, no per-seat pricing.

What it does:

1. Runs on a daily schedule (cron) — fully automated, no manual checks

2. 2. Reads each competitor product page you've listed

3. 3. Uses a free-tier AI model (Groq) to extract product name, price, currency, and stock status

4. 4. Stores a full price-history log in a database (Postgres)

5. 5. Compares today's value to the last recorded value

6. 6. Sends an alert only when something actually changed — no noise

What's included:

• Full n8n workflow file (.json) — import and go

• - Setup guide (this document + inline notes in the workflow)

• - Postgres table schema for price history

• - Example alert message template (easy to adapt for Telegram/email/Slack)

Requirements to run it:

• A running n8n instance (self-hosted or cloud)

• - A free Groq API account (free tier is enough for daily checks)

• - A Postgres database (local Docker or free-tier cloud like Supabase/Neon)

• - Basic comfort importing a workflow and adding your own credentials in n8n (no coding needed)

Not included / buyer's responsibility:

• A scraping proxy service (e.g. ScrapingBee) if your target sites use anti-bot protection — the base template uses a plain HTTP request, which works on most standard e-commerce sites but not on heavily protected ones

• - Ongoing maintenance if a competitor's site layout changes drastically

Best for: small and mid-size online store owners tracking a handful of competitors who don't want to pay for a full monitoring SaaS platform just to get a price-change alert.

Setup steps (self-serve):

1. Import the .json file into your n8n instance

2. 2. Create a free Groq API credential in n8n, attach it to the "Parse Price" node

3. 3. Set up the Postgres table using the included schema

4. 4. Add your competitor URLs to the monitor table

5. 5. Point the alert node to your Telegram bot / email / webhook of choice

6. 6. Activate the workflow — done

FAQ

Q: How is this different from Prisync or Price2Spy?

A: Those are subscription SaaS platforms starting around $99+/month with dashboards and support teams. This is a focused one-time template that does the core job — daily checks and instant change alerts — without the recurring cost.

Q: Does this work on any e-commerce site?

A: It works out of the box on sites without anti-bot protection (most small/independent stores). For sites with Cloudflare-style protection, you'll need to add a scraping proxy service — instructions included for how to slot one in.

Q: Do I need to know how to code?

A: No. You need to be comfortable clicking through n8n's interface and pasting in API keys — no coding required.

Q: Can I monitor more than one competitor?

A: Yes, unlimited — just add more rows to the monitor table.

Q: What AI model does it use, and does it cost money?

A: Groq, which has a generous free tier — for typical daily monitoring of a handful of products, most users will stay within the free tier.

Try it live: https://landing.116.203.218.107.nip.io/demo-price-radar.html — press "Run workflow" and watch the check happen end to end.