The structured creative backend for AI-assisted writing.

Characters, locations, organizations, and fully custom types. Each entity has structured fields, a backstory, secrets (hidden from public view), notes, tags, and relationships to other entities. Characters have species and role, Locations have region and condition, and Organizations have hierarchy and ideology. Custom types define their own field schemas through polymorphic extension tables.

Relationships are first-class objects, not just links in text. Create labeled, directional connections between any entities, including alliances, rivalries, family ties, and faction membership. The graph is rendered with React Flow so you can drag nodes, zoom in, and save layouts. See your entire world's web of connections at a glance.

Events and eras on an interactive Gantt chart. Drag to move or resize events. Color-coded eras provide historical context. Support for standard ISO dates and custom numeric calendars for fantasy worlds. Link entities to events to track who was involved and when.

Markdown articles organized by category with tags and entity mentions. Think of it as your world bible, searchable, structured, and cross-referenced. Articles link to entities, so you can navigate from a lore article about a war to the characters who fought in it.

Plotlines with thematic statements and plot points. Works with chronological and release ordering. Chapters and scenes linked to plotlines, POV characters, locations, and timeline events. The narrative structure sits alongside the world data, cross-referenced at every level.

Define Weapons, Spells, Vehicles, Species, or any concept your world needs. Each custom type gets its own name, icon, color, and field schema, which is a JSON-defined set of fields (text, select, number) that appear on every entity of that type. No code required.

Set any project to Public or Unlisted. Readers get a clean, read-only view of your world, including entities, relationships, timeline, lore, and storyboard. The secrets field is never exposed. Share your world with players, readers, or fans while keeping GM notes and plot twists private.

A structured writing guide covering voice, tone, POV, tense, pacing, and dialogue rules. Scenes can carry style overrides for dream sequences, flashbacks, and tonal shifts. Each character has voice notes for consistent dialogue. When the AI assists with writing, it layers the base guide, scene overrides, and character voices to maintain your prose style across sessions.

A Model Context Protocol server lets AI assistants like Claude read and write your world data. Search entities, read relationships, browse the timeline, pull the style guide, create characters, add lore articles, and link timeline events. The AI works with your structured world instead of guessing. Free on all tiers. Bring your own AI, bring your own tokens.

Every AI write operation lands in a staging area instead of modifying your canon directly. You see a diff-style view of each proposed creation, update, or deletion. Accept, edit, or reject each change individually, or batch-accept a full AI session. Changes are grouped by session so you can review them in context. The same mechanism powers collaborator suggestion mode for teams.

Generate project-scoped API keys from project settings to connect your MCP client. Each key has a name, permission level (read-only or read-write), and optional expiration. Revoke keys any time. The MCP server authenticates with the key as a Bearer token, and all requests are scoped to the project.