1. Bypassing Rate and Usage Limits:

Official Amazon APIs, such as the Product Advertising API, enforce strict rate limits and require affiliate accounts, limiting the number of requests you can make per day. Unofficial APIs may have fewer restrictions or higher limits, making them more suitable for high-volume scraping or data collection.

2. Simplified Integration:

Official Amazon APIs typically require extensive setup and authentication, including API keys and secret access keys. Unofficial APIs often simplify this process, allowing developers to quickly integrate Amazon data into their applications without the need for complex authentication steps.

3. Cost-Free Access:

Many unofficial APIs or scraping tools offer free access to Amazon’s data, whereas official APIs often require an affiliate account or other paid subscription services. For small projects, startups, or experimentation, the unofficial API provides a low-cost alternative.

4. More Customization Options:

Unofficial APIs might allow for more flexibility and customization in how data is retrieved, parsed, and used. For example, developers might be able to specify custom fields, scrape various categories, or collect bulk data in ways not permitted by the official APIs.