Sports Card Trading: Real-Time Market Insights Built with Festi

Our client, a team of professional sports card traders, needed a better way to track fast-changing prices across platforms like eBay and Facebook Marketplace. Their business relied on spotting undervalued listings and reacting quickly – but manual tracking was too slow and unreliable. We built a real-time pricing intelligence system that aggregates live listings, analyzes historical trends, and gives traders instant access to actionable market data.

The Challenge

Traders lacked a unified solution to monitor prices, bids, and sales across marketplaces in real time. Manual tracking led to delayed decisions, missed opportunities, and unreliable evaluations due to frequent listing changes and removed auctions. We dug into their pain points and uncovered key barriers to data accuracy.

Research & Key Findings

Our research confirmed that:

• Manual methods couldn’t keep up with real-time bid and listing changes.
• Data accuracy dropped due to expired listings and inconsistent data sources.
• Traders needed historical trends alongside live data to assess market patterns.

Based on those findings, we developed a tailored system using Festi's flexible infrastructure.

The Festi Solution

To meet the client's need for real-time visibility into sports card pricing, we developed a custom platform using Festi's automation and data infrastructure. The solution was designed to work seamlessly with how traders actually operate, combining speed, accuracy, and ease of access.

Key capabilities included:

• Marketplace scrapers that monitor listings, bids, and sales across eBay, Facebook, and niche forums
• A structured database for tracking historical price trends and performance
• A developer-friendly API that delivers live price evaluations and market trend analysis directly into the client’s existing workflows

Implementation

Working closely with the client, we:

• Identified top trading platforms and high-interest card categories like basketball and baseball
• Built and tested custom scrapers for each marketplace to capture live bid and sales data
• Optimized the system for speed and accuracy, with continuous updates and minimal latency
• Deployed the API with full documentation, enabling the client’s team to integrate real-time data with their own dashboards and tools

This collaborative, agile approach allowed us to move fast without sacrificing quality or accuracy.

Why Not Other Tool?

Copilot autocompletes code. Festi Dev Assistant understands your codebase.

• Works with your internal framework
• Leverages your own plugins and naming conventions
• Uses GitLab feedback to learn

It’s not a guesser. It’s a builder – made for your team.

Results at a Glance

• 2 weeks to project kickoff after discovery
• 3 months from build to launch (ahead of schedule)
• 30% increase in pricing accuracy
• 100% automation of bid tracking across eBay and Facebook
• Full database of basketball and baseball card listings with historical trends

Client Testimonial

By building a platform that matched the pace and complexity of today’s trading environment, we helped the client turn scattered, unreliable pricing data into actionable market intelligence, enabling smarter, faster decisions and a stronger competitive edge.

Take Your Market Intelligence to the Next Level

Whether you're trading sports cards, tracking retail inventory, or monitoring classified listings – real-time pricing insight gives you a critical edge. Our system helps automate data collection, compare price trends across marketplaces, and surface the information you need to act faster and smarter. Want to see how this could work for your market? Get in touch today!