From idea to
KDP-ready manuscript
Chaptrly is an AI-powered production pipeline purpose-built for Amazon Kindle Direct Publishing. Generate outlines, write chapters, run expert reviews, and export publication-ready .docx files formatted to KDP specifications -- ebook, paperback, and hardcover.
KDP trim sizes
6"x9" and more
Export formats
Ebook, paperback, hardcover
KDP margins
Gutter, bleed, recto start
Metadata ready
Keywords, categories, blurb
Premise to published in five stages
Your book moves through a structured pipeline. You choose how much control to keep at each stage.
Brainstorm with AI
OptionalNot sure where to start? Explore and develop your premise in an AI chat session. Bounce ideas, flesh out characters, refine your concept -- then turn any session into a project with one click.
Define your book
Enter your premise, pick a genre, set your target word count and chapter structure. Choose fiction or non-fiction, standalone or series. Chaptrly builds the manuscript structure and tracks every change as you go.
AI generates your manuscript
AI agents produce a detailed outline, expand chapter summaries, then write each chapter sequentially -- maintaining continuity, voice, and plot threads. Every change is tracked with full version history. Watch each step progress in real time.
Expert reviewers refine it
Run configurable review passes: developmental editing for structure and pacing, line editing for prose quality, continuity checking for consistency, plus sensitivity reading and market fit analysis. You control which reviewers run and in what order. You approve or reject each suggestion so the manuscript stays in your control.
Generate marketing materials
AI produces Amazon-optimized blurbs (multiple variants), KDP keyword phrases tuned for discoverability, browse category suggestions mapped to actual KDP taxonomy paths, and an AI-generated cover image based on your book details.
Export KDP-ready manuscripts
Generate .docx files that meet Amazon KDP specifications exactly -- correct trim sizes, margins, gutter widths, page numbering, chapter breaks, front matter, back matter, and typography. Three formats: ebook, paperback, and hardcover.
Built for serious self-publishers
Every feature is designed around the Amazon KDP publishing workflow.
AI Brainstorming
Develop your premise in an AI chat before committing to a project. Explore ideas, develop characters, refine your concept -- then extract the best idea into a full project.
AI Agent Pipeline
AI agents generate outlines, write chapters, and run multi-pass expert reviews. Each task operates directly on your book repo with full context.
Author Personas
Define voice, style, and tone for AI drafting. Each persona acts as a pen-name profile -- use different personas for different genres or series so the AI writes in your chosen voice.
Full Edit History
See exactly what changed between drafts, revert edits, and compare review passes. Every word has a complete version history so nothing is ever lost.
8 Expert Reviewer Personas
Developmental editor, line editor, continuity checker, sensitivity reader, market fit analyst, KDP compliance checker, fact checker, and structure analyst.
Your Level of Control
Heavy mode: approve every chapter. Medium: approve the outline and full draft. Light: everything runs automatically, you review the final output. Change anytime.
AI Cover Image Generation
Generate a cover image based on your book details -- title, genre, tone, and description. Get a visual starting point without leaving the platform.
Real-Time Progress
Watch every pipeline step as it happens. Live progress updates show you exactly where your book is in the production process -- no refreshing, no guessing.
Three KDP Export Formats
Ebook (reflowable), paperback (6"x9", 0.875" gutter), and hardcover (1" gutter). Correct margins, page breaks, headers, footers, and front/back matter.
Amazon Metadata Generation
AI-generated KDP keyword phrases optimized for Amazon search, browse category suggestions using actual KDP taxonomy, and multiple blurb variants you can A/B test.
Fiction & Non-Fiction
Genre-aware prompts and reviewers for both. Romance pacing is different from thriller pacing. Business books need fact-checking. Chaptrly knows the difference.
Series Support
Manage multi-book series with cross-book continuity tracking. Shared character bibles, setting details, and timeline consistency across volumes.
Manuscripts that pass KDP review the first time
Every export is generated to Amazon's exact formatting specifications. No more rejected uploads or reformatting headaches.
- Correct trim sizes (6"x9" standard, customizable)
- Proper gutter margins (0.875" paperback, 1" hardcover)
- Recto chapter starts with blank verso pages
- Running headers with book title
- Page numbers in footers
- Title page, copyright page, and table of contents
- Back matter: author bio, blurb, also-by section
- Cream/white paper color support
- Drop caps and professional typography
- AI-generated cover image from your book details
Ebook
Reflowable .docx for Kindle
- Embedded table of contents
- Clean semantic formatting
- No fixed layout constraints
- Optimized for all Kindle devices
Paperback
Print-ready .docx for KDP Print
- 6“ x 9” trim size (configurable)
- 0.75“ outside margins, 0.875” gutter
- Running headers and page numbers
- Chapter page breaks on recto
Hardcover
Case laminate .docx for KDP Hardcover
- 6“ x 9” trim size (configurable)
- 1“ gutter for case binding
- Same interior quality as paperback
- Adjusted margins for hardcover trim
Pricing that scales with your catalog
Every plan includes the full AI pipeline, all 8 reviewer personas, and all 3 KDP export formats. Pick the tier that matches your publishing volume.
Starter
For authors testing AI-assisted publishing with their first book.
- 1 active project
- 2 author personas (voice & style for AI drafting)
- ~1 book per month capacity
- All 8 reviewer personas
- Ebook + paperback + hardcover export
- KDP keyword & category generation
- Blurb generation (multiple variants)
- 1M agent tokens included
- 250k API tokens included
- Custom reviewer personas
- Priority queue processing
Overage: $0.02/1k agent tokens, $0.005/1k API tokens
Professional
For active self-publishers producing multiple titles per quarter.
- 5 active projects
- 10 author personas (voice & style for AI drafting)
- ~3 books per month capacity
- All 8 reviewer personas
- Ebook + paperback + hardcover export
- KDP keyword & category generation
- Blurb generation (multiple variants)
- 3M agent tokens included
- 750k API tokens included
- Custom reviewer personas
- Priority queue processing
Overage: $0.015/1k agent tokens, $0.004/1k API tokens
Publisher
For publishing businesses producing books at scale across genres.
- Unlimited projects
- Unlimited author personas (voice & style for AI drafting)
- Unlimited books per month
- All 8 reviewer personas
- Ebook + paperback + hardcover export
- KDP keyword & category generation
- Blurb generation (multiple variants)
- 10M agent tokens included
- 2.5M API tokens included
- Custom reviewer personas
- Team collaboration ($25/mo per seat)
- Dedicated compute resources
Overage: $0.01/1k agent tokens, $0.003/1k API tokens
All plans include overage billing so you're never cut off mid-book. A typical 60,000-word novel (20 chapters, 3 review passes) uses approximately 935k tokens. Starter covers 1 full novel per month with margin. Professional covers 3+.
You'll choose your plan after creating your account.
Frequently asked questions
Everything you need to know about getting started with Chaptrly.
An author persona defines the voice, style, and tone the AI uses when drafting your manuscript. Think of it as a pen-name profile — you can have different personas for different genres or series.
A 60,000-word novel (20 chapters with 3 review passes) typically takes 1 to 3 hours depending on your review preferences. In "light" mode the pipeline runs almost entirely on its own; in "heavy" mode you approve each stage.
Absolutely. You can edit directly in the app, approve or reject AI suggestions, and see a full diff of every change. Your full manuscript history is always preserved.
Chaptrly exports .docx files formatted to Amazon KDP specifications in three variants: ebook (reflowable), paperback (6"x9" with 0.875" gutter), and hardcover (6"x9" with 1" gutter). Files are ready to upload directly to KDP.