KDP Spy is brought to you by BookBolt.io.
Please follow these steps to install KDP Spy and begin using it.
Step 1: Install the…
Users
50K
0 in 30 days
Rating
2.3 / 5
−0.04 in 30 days
Ratings
97
0 in 30 days
Store rank
#3,563
#3,107 among extensions
Version
3.0.29
updated 24 Apr 2026
Users
monthly, 3 years
Latest, 15 Oct 2026:50,000 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 years
Latest, 15 Oct 2026:97 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About KDP Spy by Book Bolt
KDP Spy is brought to you by BookBolt.io.
Please follow these steps to install KDP Spy and begin using it.
Step 1: Install the extension in Chrome, click on the icon from the upper right hand corner menu, and log in with your Book Bolt credentials.
Step 2: Head over to Amazon.com (the extension currently works with the USA .com version of Amazon).
Step 3: Enter a keyword into the Amazon search box, and click on the Amazon search button.
Step 4: Once the results populate from your search, click on the KDP Spy extension from your Chrome browser. This will pop up the extension.
Step 5: Click on the "start" button inside of KDP Spy, which will begin bringing back the data that you need for your research!
When it comes to producing low content or no content books and journals on the KDP platform, it is essential that you know what is selling! The goal is to offer new products on KDP to an audience that is underserved. Book Bolt's KDP Spy lets you find niches quickly which will put more royalties in your pocket.
Use KDP Spy on Amazon page to pull the ASIN, image, and title of the Amazon page. You also will be able to see crucial information such as price, BSR, product rating, estimated sales and estimated revenue for each low or no content book that has been uploaded to KDP.
With KDP Spy, you can quickly find niches that are in hot demand and know how much revenue they are bringing in for these products. This will let you enter the market with your own unique designs on your low/no content books and take over the market.
Earning royalties through KDP with low/no content books and journals has never been easier!
Growth
Window
Users
Change
Ratings
Rating
7 days
0
+0.0%
0
−0.04
30 days
0
+0.0%
0
−0.04
6 months
−10K
−16.7%
+5
−0.03
1 year
−10K
−16.7%
+8
−0.07
Chrome Web Store search rankings
Where KDP Spy by Book Bolt appears when people search the store, with the 30 day change