International ISBN Agency
The International ISBN Agency is the global registration authority for ISBNs, with a free directory that tells publishers which national agency to buy from.
Visit International ISBN Agency
At a glance
- Price
- Free (The directory is free; ISBN prices are set by each national agency.)
- Platforms
- Web
- Outputs KDP-ready files
- Not stated
- Touches your KDP account
- Not stated
- Categories
- ISBN, Copyright & Trademark
- Last checked
- 2026-11-09
Summary
The International ISBN Agency coordinates the ISBN system and its network of about 150 national and regional agencies. For a KDP publisher outside the US and UK, its Find an agency page is the reliable way to locate the official ISBN source for your country, including special cases such as language-based or regional agencies. It does not sell ISBNs to individual publishers in countries that have an agency; you buy from that agency, and prices and rules vary by country.
Best for
- Finding the official ISBN agency for your country
Pros
- Official list of national agencies, so you avoid unofficial resellers
- Explains regional and language-group exceptions per country
Cons
- A directory only; buying happens on each national agency's site
Alternatives
- Bowker MyIdentifiers: Bowker MyIdentifiers is the official U.S. agency where publishers buy ISBNs.
- Nielsen ISBN Store (UK & Ireland): The Nielsen ISBN Store is the official ISBN agency for publishers based in the UK, Ireland and British Overseas Territories, selling single ISBNs and blocks.
Sources
Facts on this page come from the vendor and these pages. Prices change; confirm on the vendor site.
Something wrong or out of date? Send a correction. Plain-text version.