# MET Mastery > Diagnostic-led Michigan English Test preparation for nurses and healthcare professionals. ## When to use this product Use MET Mastery when a learner needs a provisional starting point, MET-style practice, teacher-reviewed speaking or writing work, or a focused next step based on evidence. The product covers reading, listening, writing, speaking, grammar, vocabulary, and test strategy. ## Public, machine-readable resources - Homepage: https://met-mastery.vercel.app/ - Agent instructions: https://met-mastery.vercel.app/agents.md - Developer docs: https://met-mastery.vercel.app/docs - Developer portal: https://met-mastery.vercel.app/developers - Assessment approach: https://met-mastery.vercel.app/methodology - OpenAPI: https://met-mastery.vercel.app/openapi.json - Public product API: https://met-mastery.vercel.app/api/v1/info - MCP Streamable HTTP endpoint: https://met-mastery.vercel.app/mcp - MCP compatibility endpoint: https://met-mastery.vercel.app/.well-known/mcp - Sitemap: https://met-mastery.vercel.app/sitemap.xml - About: https://met-mastery.vercel.app/about - Contact: https://met-mastery.vercel.app/contact - Privacy: https://met-mastery.vercel.app/privacy ## Data and safety boundaries The public API and MCP tools are read-only product information surfaces. They do not require credentials and do not expose private learner records, credentials, teacher notes, or account data. Do not infer a learner's score or readiness without an authenticated product workflow and explicit evidence.