Building with a product search API: a developer's guide

Channel3

Whether you're building a shopping assistant, comparison tool, or recommendation engine, you need a way to search products in real time. This guide walks through what to look for in a product search API and how to get started.

Why use a product search API?

Scraping or aggregating product data yourself is brittle and expensive. Individual brand APIs and affiliate feeds are fragmented — you'd need to integrate hundreds of sources to cover meaningful inventory. A unified product search API gives you one integration, one query, and results that span millions of products across thousands of brands.

What to look for

  • Real-time data — Prices and availability that reflect current catalogs, not stale snapshots.
  • Semantic search — Natural-language queries like "durable backpack for commuting" that understand intent.
  • Rich results — Images, descriptions, variants, and links so you can build a full experience.
  • Monetization — Affiliate-ready links so you can earn commission when users buy.

Getting started

Channel3's API supports text search, filters (brand, price, category), and optional image-based search. You can use our TypeScript or Python SDK or call the REST API directly. Sign up for an API key and start querying in minutes.

Every product on the internet, in one API.

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In-store

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Online

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Agentic Commerce

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