# Vocabura > Vocabura is an active recall vocabulary mastery platform that turns passive word recognition into permanent command through daily 5-word micro-sessions, root etymology, and authentic dual British and American audio pronunciations. ## Core Documentation - [Vocabura Homepage](https://vocabura.com/): Overview of the 5-word daily micro-habit, pedagogical science, and interactive flashcard demonstration. - [Membership & Pricing](https://vocabura.com/plans): Unrestricted 30-day Pro trial information and Free Explorer tier details. - [Learner Sign In](https://vocabura.com/login): Student sign-in portal. - [Learner Registration](https://vocabura.com/register): New student account registration and onboarding. - [Canonical XML Sitemap](https://vocabura.com/sitemap.xml): Complete machine-readable index of all crawlable Vocabura URLs. ## Optional - [AI Catalog Manifest](https://vocabura.com/.well-known/ai-catalog.json): Machine-readable Agentic Resource Discovery (ARD) catalog detailing Vocabura capabilities for autonomous agents. - [WebMCP Manifest](https://vocabura.com/.well-known/webmcp.json): Web Model Context Protocol tool specifications for programmatic vocabulary lookup.