JLPT Mastery
Adaptive JLPT preparation for all 5 levels. Confusion tracking, spaced repetition, and AI explanations across 8,700+ vocabulary words and 489 grammar patterns.
https://jlptmastery.comOpens ChatGPT on the web or desktop and asks it to use the WebMCP tools available here.
Connect straight to this server’s public endpoint.
https://jlptmastery.com/api/mcpWe add this server to your workspace, then open Studio — saved access, one connection to many servers, with a history of what ran.
Last probed Sep 14, 2026 · jlptmastery.com
7tools discovered
List Levels
List all 5 JLPT levels with vocabulary and grammar counts. Use this first when a user is unsure which level to focus on.
List Themes
List vocabulary themes for a JLPT level (e.g. Numbers, Family, Daily Actions). Each theme has a word_count.
Search Vocabulary
Search vocabulary by level, optional theme slug, and optional free-text query (matches word, reading, meaning, or slug). Returns up to 50 words with slug, word, reading, meaning, word_type, theme.
Get Word
Get full detail for a single vocabulary word by level + slug: readings, meaning, example sentences, notes, and curated confusion partners with explanations.
Search Grammar
Search grammar patterns by level, optional category, and optional free-text query (matches pattern, meaning, usage summary). Returns up to 30 patterns.
Get Grammar
Get full detail for a single grammar pattern by level + pattern_id (e.g. 'n5_ato_de'): formation rules, examples, usage notes, common mistakes, exam tips, related patterns.
Explain Confusion
Explain why two specific JLPT vocabulary words at the same level are commonly confused. Returns curated explanations grouped by confusion type (meaning vs reading). Useful for nuance questions like '教える vs 教わる' or 'はじめる vs はじまる'.
Get your MCP into directories
A working endpoint is step one. Directory coverage is the coordinated launch across ChatGPT, Claude, Cursor, the MCP Registry, and community indexes.
Directory coverage for brandsAdaptive JLPT preparation for all 5 levels. Confusion tracking, spaced repetition, and AI explanations across 8,700+ vocabulary words and 489 grammar patterns.
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
MCPBundles probed 7 tools on the live server. The tool list on this page reflects what was discovered at the last refresh — connect your client to see the full set available to your session.
No provider sign-in was required during MCPBundles' probe. Your client may still need MCPBundles credentials depending on how you connect.
Operate JLPT Mastery? Verify ownership to take over this directory entry.
This server appears in the MCPBundles directory. Verify you operate it to take over the listing — name, description, logo, contact email, and skill content. We email a 6-digit code to a maintainer address your server publishes in /.well-known/security.txt or /.well-known/mcpbundles.json. Free, takes about a minute.