# Game Master Assistant > A site for creating tabletop game worlds: genres, stories inside them, and characters, places, items and other entities inside stories. The site is a JavaScript app, so its HTML pages have no content for agents. Read the plain text versions below instead. ## Readable pages (no login needed) Every genre, story and entity (character, location, item…) page has a Markdown version with its name, where it sits (genre > story), its description and every attribute: - A page at `/entity/{id}` is readable at `/api/agent/entity/{id}` - A page at `/story/{id}` is readable at `/api/agent/story/{id}` - A page at `/genre/{id}` is readable at `/api/agent/genre/{id}` Use the same site as the link you were given, e.g. `https://gamemasterassistant.com/entity/123` → `https://gamemasterassistant.com/api/agent/entity/123`. Add `?format=json` for the same data as JSON (`attributes` holds the raw rows; detailed attributes are JSON strings). Missing, deleted or test content answers 404. A 503 means the readable version isn't on that server yet.