How to Build a No-Code Amazon Price Tracker in One Evening

Price monitoring should not require a data-engineering team or a five-figure software bill. Thanks to a new generation of no-code tools, you can spin up an always-on Amazon price tracker in a single evening—complete with dashboards, AI-powered insights, and automated email alerts.

In this guide we walk through the exact three-tool stack—Decodo for budget-friendly scraping, n8n for automation, and Replit Agent for data visualization—that turns a simple Google Sheet of ASINs into a real-time competitive-pricing weapon. Follow the chapters below to understand the architecture, build the pipeline, visualize the data, and calculate the unbeatable ROI.

Why This Matters

• Stay ahead of competitors: Receive nightly updates on price changes across thousands of ASINs.
• Act instantly: Trigger n8n workflows to adjust ad bids, update listings, or alert your sales team.
• See the big picture: Interactive dashboards built with Replit Agent surface trends, anomalies, and margin opportunities.
• Save money: Decodo keeps per-scrape costs at just 0.1¢—a fraction of traditional tools.

The 3-Tool Stack at a Glance

1. Decodo — Lightning-Fast Web Scraper

Decodo’s point-and-click selector lets you capture price, seller, and Buy Box data without writing XPath. Its scheduler runs nightly, pushing clean JSON into PostgreSQL.

2. n8n — Open-Source Automation

n8n orchestrates the flow: it pulls fresh Decodo data, appends it to your historical table, calculates price deltas, and fires off Slack or email alerts only when thresholds are met.

3. Replit Agent — AI-Powered Dashboards

Use a natural-language prompt to code the analytics web app. No coding required.

Step-by-Step Build

1. Collect ASINs: Drop your product list into a Google Sheet. n8n will read from this sheet on every run.
2. Scrape with Decodo: Configure selectors once, set frequency to nightly, and point the output to PostgreSQL.
3. Automate in n8n: Use built-in nodes to calculate daily deltas and send price changes.
4. Visualize in Replit Agent: Connect to the same PostgreSQL instance. Use natural language to code your web app.

ROI in Plain Numbers

With nothing more than Decodo, n8n, Replit Agent, and PostgreSQL you can replicate the core features of expensive price-intelligence suites at a fraction of the cost. The workflow reads thousands of ASINs, scrapes fresh prices every night, stores history in PostgreSQL, surfaces trends in interactive dashboards, and emails only the movements that matter. The result is enterprise-grade market visibility for less than a monthly streaming subscription—proof that smart tooling, not huge budgets, now defines competitive advantage.

Ready to See It in Action?

The full walk-through video shows every click, setting, and prompt so you can follow along in real time. If you’re serious about winning the Buy Box—and your market—don’t miss it.

Happy Learning! Derek