KDP categories · Top KDP authors
Web Services & APIs: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Web Services & APIs, updated Nov 3, 2026: median price $22.39, median 18 reviews, average rating 4.4 and a KDPTop opportunity score of 26/100 (highly competitive).
| Price range (middle 50%) | $8.99 – $38.08 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 16% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- At $22.39 its median price beats 99% of Kindle eBooks categories, leaving more margin per copy.
- Its median reviews are 26% of the parent category Tech Culture & Computer Literacy (71), one of the easier corners under it.
- 16% of its best sellers came out in the last 90 days, more than in 78% of Kindle eBooks categories: readers here keep buying new titles.
Top 10 Web Services & APIs best sellers
-
Build Passive Income with AI – No Code? No Budget? No Problem!: Join the Digital Gold Rush Before It Passes You By
by Chuck Little
- List rank#1
- Price$7.99
- Rating4.4
- Reviews663
-
-
System Design for the LLM Era: Patterns and principles for production-grade AI architecture
by Sampriti Mitra
- List rank#3
- Price$31.58
- Rating4.1
- Reviews16
-
MASTER CHATGPT IN 3 DAYS: Leverage Artificial Intelligence to Stand Out and be More Efficient - Feb 2026 Updated
by Pablo Tapias Cantos
- List rank#4
- Price$6.99
- Rating4.4
- Reviews289
-
Learning Go: An Idiomatic Approach to Real-World Go Programming
by Jon Bodner
- List rank#5
- Price$41.09
- Rating4.8
- Reviews199
-
The Evolution of the Swipe: Taps and Apps (Anatomy of the Swipe Book 2)
by Ahmed Siddiqui
- List rank#6
- Price$9.99
- Rating4.7
- Reviews33
-
Rust Web Programming: A hands-on guide to Rust for modern web development, with microservices and nanoservices
by Maxwell Flitton
- List rank#7
- Price$31.58
- Rating4.8
- Reviews7
-
JavaScript: The Definitive Guide: Master the World's Most-Used Programming Language
by David Flanagan
- List rank#8
- Price$37.04
- Rating4.7
- Reviews1,557
-
Cloud Application Architecture Patterns: Designing, Building, and Modernizing for the Cloud
by Kyle Brown
- List rank#9
- Price$17.90
- Rating4.4
- Reviews34
-
Head First JavaScript Programming: A Learner's Guide to Modern JavaScript
by Eric Freeman
- List rank#10
- Price$47.15
- Rating4.6
- Reviews29
FAQ
Is Web Services & APIs a good niche for Amazon KDP?
Its KDPTop opportunity score is 26/100, which makes it highly competitive. The median best seller has 18 reviews and sells for $22.39.
How many reviews do you need to rank in Web Services & APIs?
The median best seller has 18 reviews, and 83% of them have fewer than 100.
What do Web Services & APIs best sellers cost?
The median price is $22.39; half of the best sellers are priced between $8.99 and $38.08.
Can new books break into Web Services & APIs?
16% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.