KDPTop
KDPTop is a KDP research service that tracks Amazon Books and Kindle bestseller lists daily and scores whether a category is worth entering.
Disclosure: KDPTop is made by the same team as kdp123. It is described with the same fields and held to the same sourcing rules as every other entry; see the methodology page.
At a glance
- Price
- Free tier, paid from $19.99/mo (Free: 1 full category decision card a day, first 10 rows of lists, 3 days of history. Creator $19.99/month or $199/year (90 days of history, 2,000-row CSV). Pro $39/month or $390/year (365 days, 20,000 rows, 10,000 API/MCP calls a day). Team $99/month or $990/year (5 seats, 730 days, 100,000 rows). New customers get a 7-day trial, then half price on the first month or year.)
- Refund window
- 14 days
- Platforms
- Web, Chrome extension
- Outputs KDP-ready files
- No
- Touches your KDP account
- No
- Last checked
- 2026-11-09
Price history
- 2026-11-09: Plans listed as Free, Creator $19.99/mo ($199/yr), Pro $39/mo ($390/yr), Team $99/mo ($990/yr); first period 50% off after a 7-day trial.
All changes across the directory: price and plan changes.
Summary
KDPTop crawls Amazon Best Sellers, New Releases and Top 100 Free lists daily for about 11,000 Books and Kindle categories (Top 10,000 in 762 of them) and turns each category into a decision card: price band, review barrier, estimated daily sales from BSR, how many new books broke in during the last 90 days and churn, ending in Go, Crowded, Watch or Skip. It also tracks authors and their release histories, maps a book or ASIN to its KDP categories, has an AI research assistant, a Chrome extension, and a REST API and MCP server for use from ChatGPT or Claude. Sales figures are estimates and exclude Kindle+ reads. It is made by the same team as this directory and is described with the same fields as every other entry.
Best for
- Deciding whether a category is worth writing for before you start a book
- Tracking new books breaking into categories you follow
Pros
- Daily Top 100 lists across about 11,000 categories, with history
- One-card verdict per category with the inputs shown, not a black-box score
- REST API and MCP server on every plan, including Free
- Author pages with release histories
Cons
- Sales are estimated from BSR and do not include Kindle+ page reads
- Free plan opens only one full category a day
- History for many categories is still building, so churn metrics fill in over time
Alternatives
- Publisher Rocket: Publisher Rocket is a downloadable keyword, category and competition research app for Amazon book publishers, sold as a one-time purchase.
- BookBeam: BookBeam is a subscription web app and Chrome extension for niche research, keyword research and ongoing tracking of books on Amazon.
- KDSPY: KDSPY is a paid browser extension that shows category, keyword, competitor and revenue estimates directly on Amazon pages.
- Book Bolt: Book Bolt is a subscription app that combines niche research with a KDP-sized cover and interior designer for low-content and puzzle books.
Sources
Facts on this page come from the vendor and these pages. Prices change; confirm on the vendor site.
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