Amazon Best Seller API

Retrieve best-selling products for a specified Amazon category or subcategory. Supports multiple list types: Best Sellers, New Releases, Movers & Shakers, Most Wished For, and Gift Ideas. Category path can be found in Amazon's Best Sellers URLs.

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GET/v1/amazon/best-sellers

categorystringrequired

Best sellers category to return products for. Supports top level best sellers categories (e.g. software). In addition, subcategories / category path can be specified as well, separated by / (e.g. software/229535) - this can be seen in best sellers URLs, e.g. https://www.amazon.com/Best-Sellers-Software-Business-Office/zgbs/software/229535. Examples: software software/229535

typestringoptional

Type of Best Seller list to return. Allowed values: BEST_SELLERS, GIFT_IDEAS, MOST_WISHED_FOR, MOVERS_AND_SHAKERS, NEW_RELEASES

pagenumberoptional

Results page to return.

countrystringoptional

Sets the Amazon domain, marketplace country, language and currency. Allowed values: US, AU, BR, CA, CN, FR, DE, IN, IT, MX, NL, SG, ES, TR, AE, GB, JP, SA, PL, SE, BE, EG, ZA, IE

languagestringoptional

The language of the results. In case not specified, results will be returned in the default domain language. Supported languages per country: US: en_US, es_US AU: en_AU BR: pt_BR CA: en_CA, fr_CA FR: fr_FR, en_GB DE: de_DE, en_GB, cs_CZ, nl_NL, pl_PL, tr_TR, da_DK IN: en_IN, hi_IN, ta_IN, te_IN, kn_IN, ml_IN, bn_IN, mr_IN IT: it_IT, en_GB MX: es_MX NL: nl_NL, en_GB SG: en_SG ES: es_ES, pt_PT, en_GB TR: tr_TR AE: en_AE, ar_AE GB: en_GB JP: ja_JP, en_US, zh_CN SA: ar_AE, en_AE PL: pl_PL SE: sv_SE, en_GB BE: fr_BE, nl_BE, en_GB EG: ar_AE, en_AE ZA: en_ZA IE: en_IE

fieldsstringoptional

A comma separated list of product fields to include in the response (field projection). By default all fields are returned. Example: product_title,product_url,product_photo

Amazon API Use Cases

Best Seller Data Collection

Retrieve best seller data from Amazon at scale for analytics and research.

Competitive Intelligence

Monitor Amazon activity and benchmark against competitors using real-time data.

Automation & Integration

Integrate Amazon best seller data into your product, dashboard, or data pipeline.

Frequently Asked Questions

Is the Amazon API official?

No, KeyAPI provides an unofficial Amazon API that lets you access Amazon data through our platform. We handle the complexities of data collection so you can focus on building your application.

How current is the data?

We provide real-time data from Amazon. When you make a request, we fetch the latest information available.

How do credits work?

Each API endpoint consumes credits. Most endpoints cost just 1 credit. All pricing is transparent in our API documentation with no hidden fees.

Can I use this for AI model training?

Yes. KeyAPI provides structured, AI-ready data ideal for training datasets, fine-tuning LLMs, and building AI pipelines. Our historical archives are particularly valuable for large-scale training workloads.

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