Building resale products on structured catalog and pricing data, and how merchants and platforms use the API.
We've launched Price Hero, a dedicated platform for the Catalog API. Here's what's new: v3 endpoints, a self-serve developer portal, a credit-based pricing model, and a live API Explorer.
April 20, 2026
The Catalog API is moving to Price Hero — and v3 is here
The Trendful Catalog API isn't just for powering customer-facing resale experiences; it’s also a powerful engine for building internal pricing dashboards and automation tools. In this article, we explore how merchants, wholesalers, and resale platforms are leveraging the API to make better, faster pricing decisions at scale.
September 23, 2025
Powering internal pricing tools with the Trendful Catalog API
Discover how resale merchants and platforms use the Trendful Catalog API to create clean, consistent product listings with minimal manual input. From title standardization to improved categorization and search, this use case shows how the API helps streamline e-commerce operations and drive conversions.
June 12, 2025
Powering e-commerce listings with the Catalog API
Learn how Trendful built its Resale App using the Catalog API to create a step-by-step product submission flow, deliver instant pricing, and power smarter product identification for handbags and watches. This article showcases how developers and resale businesses can build flexible, UI-friendly resale experiences using the Catalog API.
April 11, 2025
How we built our resale app on top of the Catalog API
In the dynamic world of resale, accurate pricing is a game-changer. Whether you're a small business trying to determine fair market values or a large enterprise building a resale platform, having reliable pricing insights is crucial. At Trendful, we built our Catalog API and Price Database to solve a major industry challenge: providing structured, actionable resale pricing data.
March 18, 2025
The magic of Trendful's Catalog API
The resale market is booming, transforming the way consumers buy and sell pre-owned goods. With an estimated global GMV of $400 billion and expected growth to 3-4% of the retail market in the next five years, businesses need smarter tools to navigate this rapidly evolving landscape. Enter Trendful’s Catalog API—a powerful solution designed to streamline resale operations, enhance pricing accuracy, and optimize product discovery for businesses enabling resale.
January 31, 2025
How the Catalog API will power the resale market?