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Idea in, book out: a Mac app that pitches, drafts, checks and designs a novel or a nonfiction book, and builds KDP-ready files.

Short description (50 words)

Author Magic is a Mac app for authors of novels and nonfiction. Start from an idea and it pitches the book and writes a first draft by your writing rules, or write every word yourself. It works with Claude, OpenAI, Gemini and more on your own keys. It keeps the story and the facts straight, makes the cover, and checks every KDP file.

Facts

• Platform: macOS 12 or later, Apple Silicon
• Output: KDP paperback interior PDF, full cover wrap PDF, ebook cover (1600 × 2560 px), EPUB (built to pass epubcheck 5.2.1)
• Write it with AI: kind of book, idea, shape, pitch, then a first draft written in the background
• Nonfiction: narrative, idea or argument, survey or reference, how-to and memoir; a pitch with a thesis, a research plan and facts to check; uncertain facts are marked and must be checked before the KDP pack is built
• Writing rules applied to every AI result: no em dashes, US or UK spelling, no AI-sounding phrases, banned words; a manuscript check before every build
• Cover studio: nine layouts, AI art for the front or the whole wrap (made without lettering), your own image, one-click restyle with ten palettes and nine type pairs; 14 open-licensed book typefaces; 17 KDP paperback trim sizes
• Store listing drafted from the book: Amazon description, seven keyword phrases, three categories; back-cover blurb options; chapter openings with drop caps and ornaments
• Authorship dial: I write every word / I write, AI expands / I brain-dump, AI shapes / AI writes from my brief, set per chapter
• AI: Claude, OpenAI, Gemini, OpenRouter, Ollama, LM Studio and any OpenAI-compatible service, through the author's own keys
• Local-first: books are ordinary folders on the author's computer
• Imports .docx, Markdown and plain text
• Price: founding authors pay what they want ($1 or more) until 31 December 2026. From 1 January 2027, $169 one time. No monthly fees, no recurring billing. AI is billed separately by the author's provider.

Usage notes

• Sample books shown in screenshots (The Lantern Keepers, Salt & Iron, The Quiet Garden, Tidelines) are fictional, made in Author Magic for demonstration.
• Write the name as "Author Magic" in running text. Don't redraw or recolour the logo.