A parent and child category tree labels markdowns, documents, diagrams, tables, and links with one shared structure for apps you build on Astro. Categories can have emojis for quick visual identification.

HTTP API

Method Path Purpose
GET /api/categories List categories (universe_id)
POST /api/categories Create
PUT /api/categories/{cat_id} Update
DELETE /api/categories/{cat_id} Delete
PUT /api/categories/{cat_id}/pin Pin category (feeds sidebar)

MCP tools

Tool Role
list_all_categories List categories
write_category Create category
update_category Update name or emoji
delete_category Delete category