Features
Everything around the writing — and never the writing itself
Calliope holds the research, the memory, the structure, and the second opinions, so your attention stays on the sentence. Five pillars, one hard line running through all of them: it never writes your prose.
Write
Distraction-free editing
Real book typography, warm paper themes, dark mode, focus mode, and typewriter scroll — a surface built to disappear so the page is the only thing you see.
Explore →Think
Marginalia & the AI companion
Notes, to-dos, and chat pinned to the paragraph they're about — beside an AI that reads your whole book, checks it against your canon, and never writes a line of it.
Explore →Remember
The Map & structure
The canon of your world — characters, places, facts, every mention — and the outline of your manuscript: parts, chapters, synopses, statuses, reordering.
Explore →Connect
The MCP connector
Point Claude, ChatGPT, or Cursor at your real book — with a public catalog of editor, critique, character, and craft-drill skills. It reads everything; it never writes your prose.
Explore →Automate
The Writer API
Your book as data you can script against — import a legacy manuscript, run a transform, wire a publish pipeline. The one surface where your own prose can flow in and out.
Explore →The cursor is already blinking
No account, no setup. Open the editor and write.
Start writing — free