GAMESLASHHidden Door
By Hidden Door
Create and revise narrative-world drafts with Atlas, including an MCP beta for connecting AI agents.
Hidden Door's Atlas tools help creators develop story worlds, characters, locations and storylines. Its MCP beta lets an external AI agent create or import a world and revise the resulting draft through conversation.
To use the MCP beta, you need a Hidden Door account on the Creator plan. Follow the official announcement's setup instructions for Claude Code or Codex, sign in through the browser, describe or import your world, review the proposed plan and approve changes before continuing in Atlas Studio.
The MCP saves drafts to your account but does not publish worlds or start games. Play and sharing remain in Atlas Studio. Writing and requested edits are sent to Hidden Door; review imported material and the resulting structure before sharing.