About kdp123

kdp123 is a directory of tools, official rules and communities for people who publish on Amazon KDP. It is built for one job: let a publisher find the right resource for what they are doing now, and see what it costs and when it was last checked.

Who runs it

kdp123 is maintained by the kdp123 editorial team, the same team that builds KDPTop, a KDP research service. That relationship is disclosed on the KDPTop listing, on every page where KDPTop is recommended, and in the methodology. KDPTop is held to the same fields and sourcing rules as every other entry, and category tables stay sorted by name.

How listings are checked

1. Source first. Every price and claim comes from the vendor's own site or Amazon's help pages. Third-party reviews are never the source for a price. If we cannot read a price on the vendor's page, the listing says so instead of guessing.
2. Dated. Each listing shows the date someone last re-read the vendor's site. Rules pages show the date they were checked against Amazon.
3. Re-checked. A weekly job tests every outbound link and lists entries not checked in 120 days; those are re-verified first. Price and plan changes go on the changes page.
4. Removed when gone. Tools that shut down, park their domain or stop serving KDP publishers are taken off the site, not left as dead links.

What we will not do

• Sell placements or rankings. There is no paid listing, and affiliate links (marked where they exist) never change order or wording.
• Publish an entry without a source.
• List tools that ask for your Amazon password or promise to game reviews or rankings.

Contact

Email the editorial team at [email protected]. Use it for corrections, a tool you think is missing, a vendor update to your own listing, or press. To suggest a listing, the submit page is faster.

Vendors: we will update your listing when you point us to the page on your own site that shows the change. We do not accept payment to add, keep or reorder a listing.

Open by default

The data (CC BY 4.0) and the site code (MIT) are on GitHub. You can download the whole directory as JSON or CSV, and every page has a plain-text version for AI tools.

Not affiliated with Amazon

kdp123 is not affiliated with, endorsed by or sponsored by Amazon. "Amazon", "Kindle" and "KDP" are trademarks of Amazon.com, Inc.