Start anywhere
A novel or a nonfiction book. An idea, a manuscript from Word or Markdown, or a blank page. Pick a way in; you can mix them later.
AI BOOK STUDIO FOR KDPFOR MAC
idea in.
book out.
- Novels and nonfictionWrite every word, let the AI draft it, or mix the two, chapter by chapter.
- Your rules, every timeNo em dashes, your spelling, no AI-sounding phrases. It checks the book before anything ships.
- Cover and KDP files, doneAI art or your own image with your title on top, then the interior, cover, EPUB and listing, checked for KDP.
Not affiliated with Amazon.
6
AI services built in, plus any OpenAI-compatible one
14
book typefaces, open-licensed and embedded
17
KDP paperback trim sizes, from 5 × 8 in to A4
0
epubcheck 5.2.1 errors on our sample ebook
WORKS WITH THE AI YOU ALREADY USE
ClaudeAnthropic
OpenAIGPT models and images
GeminiGoogle
OpenRouterhundreds of models, one key
Ollamafree, on your Mac
LM Studiofree, on your Mac
And any OpenAI-compatible service, like
DeepSeek
Mistral
Grok
Names and logos belong to their owners. Author Magic works with these services through your own account; it isn't affiliated with or endorsed by them.
HOW IT WORKS
from idea to kdp.
One app, one book. Everything you'd otherwise stitch together from a chatbot, a word processor, a series-bible spreadsheet, a cover tool and a formatter.
Write your way
Let the AI draft the whole book, expand your paragraphs, or only check your work. Your writing rules apply to every word it writes.
Keep it straight
The story bible tracks who knows what and flags contradictions. In nonfiction, facts the AI isn't sure of are marked for you to check.
Cover and publish
Make the cover with AI art or your own, then build the interior, cover wrap, ebook cover, EPUB and store listing, each checked.
WRITE IT WITH AI
a novel or a nonfiction book.
Say what the book is about, choose its shape, approve the pitch, and watch it write itself, chapter by chapter. It's a first draft: every word is yours to change.
Idea and shape
Type a sentence, tap a spark, or let it surprise you. Pick genre, point of view, tone, the book size and the length in pages or words. A few questions follow; answer them, or tap Decide for me or Not sure yet.
The pitch
Three titles, the cast, the places, a chapter-by-chapter outline and the first page, written in as you watch. Change anything before a word of the book is written. A small estimate shows what the draft should cost.
Watch it write
Chapters stream in and tick off. The story bible fills in, the pages typeset themselves, and notes flag anything worth a look. Pause, stop, or keep working elsewhere.
Your book exists
Words, pages, chapters, done. Then read it and make it yours, check the continuity, make the cover and build the KDP files.
Watch it typeset itself
Switch to Pages while it writes and the interior is laid out after every chapter, with a real page count, not a guess.
It speaks up
After each chapter it checks continuity and pacing and tells you only what matters, quoting the words so you can find them.
Undo the whole run
Your manuscript is saved before it starts. Stop at any time, write just chapter one first, or undo the lot in one step.
YOUR BOOK, YOUR RULES
it won't sound like ai unless you want it to.
Set how much the AI writes, chapter by chapter. Set the rules it writes by. Then let the book be checked before a single file is built.
Review it paragraph by paragraph
Every AI change opens beside your text. Keep the new version, keep yours, edit it, or ask for another try with a note. Nothing enters the book until you apply it.
Nothing is lost
A copy of the chapter is saved before every AI change. Undo the last one, or restore any earlier version from History.
It knows your book
Every request carries your brief, your outline, your voice and the story bible, so a drafted scene knows who has met whom.
KDP's AI questions, answered
KDP asks whether your text and images are AI-generated. The app knows which chapters the AI drafted, so the answers are filled in from your dial.
Your writing rules
No em dashes. US or UK spelling. No AI-sounding phrases like "a testament to" or "a tapestry of". Banned words, swearing, heat level and plain "said" tags if you want them. Set them before the AI writes, change them any time in House style.
Enforced, not just asked
The rules go into every request, and the app fixes dashes and spelling in every AI result before you see it: chapters, edits, the pitch, the blurb and the listing.
Checked before it ships
The manuscript check reads the whole book before the KDP pack: AI talking to you instead of writing, placeholders, empty or cut-off chapters, repeated passages and code that would print. Anything that must be fixed keeps the pack from showing Ready until it is.
STORY BIBLE
it remembers who knows what.
Characters, places, facts and the timeline build up as you write. Then it reads the manuscript back and tells you where the story contradicts itself.
CONTINUITY FLAGS · THE LANTERN KEEPERS
ContradictionLow Water
Wren's green eyes
Wren's eyes are grey in The Last Entry.
KnowledgeThe Weather Book
Crane had already told her about the second mate
Wren only learns this in A Stranger at the Door, two chapters later.
TimelineNortherly
the Tuesday ferry
Crane arrived on the Thursday ferry the same week.
ANY AI YOU USE
your ai. your keys.
Connect Claude, OpenAI, Gemini or OpenRouter with your own key, or run a free model on your Mac. Connect several and pick the model for each job.
Paste a key, done
The key is checked the moment you paste it, and kept in your Mac's Keychain. Say hello to see a real reply come back.
A model for each job
Drafting, checks, cover art and private books can each use a different model. Sensible defaults are picked for you; change any of them.
Costs, shown small
A small estimate sits beside each AI action. Your provider bills you at its own rates, on your key; set a monthly limit or hide costs altogether.
Private books stay on your Mac
Mark a book private and its text only goes to a model running on your computer, through Ollama or LM Studio.
COVERS AND TYPESETTING
every book looks like itself.
Make the art with AI, or bring your own image. Your title and name stay live type on top, so you can change the layout, the type and the colours without starting again. The spine lands on the spine.
Sample books made in Author Magic. The titles and authors are fictional.
AI art, front or whole wrap
Describe the picture, or let it suggest one from your book. Pick a style and choose from four. Make art for the front, or one wide picture across the back, spine and front. The art is made without lettering, and it's enlarged for 300 DPI print.
Or your own image
Made somewhere else, or a photo of your own: drop it in and put your title on top.
Nine layouts
Full art, Art and band, Framed art, Classic, All type, Bold, Split, Statement and Minimal, each previewed with your own title, colours and art.
Restyle in one click
Ten palettes and nine type pairs. Every layer changes at once, and the colours you picked yourself stay.
Every piece is a layer
Text, shapes, icons, ornaments, patterns made from your title and images. Drag, resize, rotate and recolour them on the real KDP wrap.
Checked for print
The spine width comes from the page count and paper. It checks the safe area, the barcode space and 300 DPI before you build.
THE KDP PACK
upload these four files.
One button builds everything KDP asks for, checks it, and puts it in one folder, numbered in the order you'll upload it.
Ready for KDP44 pp · 5.5 × 8.5 in · cream
1Interior.pdffonts embedded · even pages
2Cover (paperback wrap).pdfspine from page count
3Ebook cover.jpg1600 × 2560 px
4Ebook.epubbuilt to pass epubcheck
+KDP metadata.mddescription · 7 keywords · 3 categories · AI answers
Before it says Ready, it runs the manuscript check, then checks trim size, page count, the gutter for that page count, and embedded fonts. If something's wrong, it tells you what and how to fix it.
The store listing, drafted
It reads the book and drafts the Amazon description, seven keyword phrases, three categories and a line on who it's for. Edit anything; it asks before replacing what you wrote.
Back-cover blurbs
Three blurbs to choose from, each a different way in. Ask for three more and the first ones stay.
Chapter openings
Big numbers, small titles, ornaments, small capitals or a drop cap, with a live preview of your own first pages.
About the author
Your bio and photo from your author profile go on the last page of the print book and the ebook. Turn it off in Format.
YOURS, ON YOUR COMPUTER
your book never lives on our servers.
We don't have servers for your writing. Author Magic is a desktop app, and your books are ordinary folders you can open without us.
Your folder
You choose where your books live. Each one is a folder with your manuscript in plain Markdown, the story bible and the built files.
Pay once, keep it
No monthly fees and no recurring billing. AI runs on your own account with the service you choose, at its own prices, with nothing added.
Your pen names
Author profiles hold the name, bios, photo and writing voice for you and each pen name. Pick one when you start a book.
Offline by default
Writing, the bible, covers and building files all work offline. Text goes out only when you ask the AI for something.
PRICING
pay what you want. until 31 december.
No monthly fees. No recurring billing. Pay once and it's yours.
FROM 1 JANUARY 2027$169 one time
Every book, start to finish
The AI writes the rest of each book
Unlimited AI edits
The clean KDP pack and EPUB
Any AI service, on your own keys
Mac app for Apple Silicon
Every 1.x update
Refund within 7 days if it won't work
Your licence key and the download come straight from our checkout. Refund policy
Founding authors
Until 31 December 2026, pay any amount from $1 for the full licence. On 1 January 2027 the price goes to $169, and your licence stays yours.
What AI costs
Your AI provider bills you for what you use, at its own rates, on your key. Author Magic doesn't charge for AI or mark it up. You see an estimate before anything runs, and models on your Mac are free.
Your words stay yours
Your manuscript is always a plain file in your folder. If you ever stop using Author Magic, your books and built files stay where they are.
QUESTIONS
asked often.
Author Magic
macOS · Apple Silicon · 1.13Founding authors pay what they want until 31 December 2026 (normally $169). No monthly fees.
Can it really write the whole book?
It writes a complete first draft from your idea and the pitch you approve, chapter by chapter, in the background. Then it's yours to read, change and finish. You can also write every word yourself.
Does it work for nonfiction?
Yes. Pick the kind of book first: narrative nonfiction, an idea or argument, a survey or reference, a how-to or a memoir. Your notes come back sorted into your decisions and what the book will research, and the pitch brings a thesis, a research plan and a list of facts to check. It never invents people, quotes, statistics or sources. When the AI isn't sure of a fact it marks it for you, and the KDP pack isn't marked Ready until you've checked each one.
Can I stop it sounding like AI?
Yes. Set your writing rules before it writes: no em dashes, US or UK spelling, and no AI-sounding phrases, plus banned words, swearing, heat level and plain "said" tags if you want them. They apply to every AI result, and the manuscript check catches AI leftovers before you build the KDP files.
I've never self-published. Is it for me?
Yes. A walkthrough runs the first time you open it, and the Guide in the Help menu covers every step to upload.
I've already written my book. Can I bring it in?
Yes: a Word file (.docx), Markdown or plain text. Headings become chapters.
Do I need to be online?
Only for AI features (unless you use a model on your Mac), and once to activate your licence. Everything else works offline.
What does it cost?
Founding authors pay what they want, $1 or more, until 31 December 2026. It's normally $169, and that's the price from 1 January 2027. Either way it's one payment for the full licence: every book, every 1.x update, and the Mac app.
Is it a subscription?
No. No monthly fees and no recurring billing. You pay once and it's yours.
Which AI does it use?
The one you choose: Claude, OpenAI, Gemini, OpenRouter, or a free model on your Mac with Ollama or LM Studio, plus any OpenAI-compatible service. Connect several and pick a model for each job.
Is AI included in the price?
No. AI runs on your own account with the provider, who bills you for what you use at their rates. Author Magic shows a small estimate before you start and never marks it up. Models on your Mac are free.
Who owns what I write?
You do. We never see your manuscript. The only text that leaves your Mac is what you send to the AI service you chose.
Does KDP accept books written with AI?
Yes. KDP asks you to disclose AI-generated text, images and translations; AI-assisted editing doesn't need declaring. Author Magic fills in those answers from your dial.
What about IngramSpark or hardcover?
Version 1 is built and tested for KDP paperback and Kindle. The PDF and EPUB are standard files, but we only promise KDP's rules.
Will it help with the blurb and the listing?
Yes. It drafts three back-cover blurbs to choose from, each a different way in, and more if you ask. Publish → Store listing reads the book and drafts the Amazon description, seven keyword phrases, three categories and who it's for. They go into a metadata sheet laid out like KDP's form.
ai book studio
for kdp.
Novel or nonfiction. Write it your way, by your rules, and upload files you know will pass.