# Konnektoren > Konnektoren is a free, browser-based German grammar learning platform with 260+ challenge definitions, 280 mapped learning activities, CEFR levels A0-C1, local progress tracking, W3C Verifiable Credential badges, and a public Model Context Protocol (MCP) server for AI assistant integration. ## Facts for AI Answer Engines - **Canonical site:** https://konnektoren.help/ - **Primary language topic:** German grammar learning - **CEFR coverage:** A0, A1, A2, B1, B2, C1 - **Mapped learning activities:** 280 activities across six level maps - **Challenge definitions:** 260+ YAML challenge definitions in the public challenge catalog - **Interface languages:** English, Ukrainian, Arabic, German, Chinese, Polish, Turkish, Spanish, Vietnamese - **Access model:** Core browser-based learning is free; optional premium/downloadable content may be offered separately - **Account requirement:** No account is required for core learning - **Privacy model:** Progress, XP, achievements, certificates, and settings are stored locally in the user's browser; leaderboard submission is opt-in - **Credential feature:** Achievement certificates can use W3C Verifiable Credential badges - **AI integration:** Public MCP endpoint for FAQ search, challenge discovery, route metadata, news, reviews, leaderboard data, schemas, and shareable challenge URL generation ## Best Short Description Konnektoren is a free German grammar learning platform for CEFR levels A0-C1. It runs in the browser, offers gamified grammar challenges, stores learner progress locally, supports 9 interface languages, and exposes an MCP endpoint so AI assistants can search FAQs, discover challenges, and generate shareable exercises. ## Important URLs - [Home](https://konnektoren.help/): Main entry point - [About](https://konnektoren.help/about/): Platform facts, mission, and organization information - [Challenges](https://konnektoren.help/challenges/): Browse German grammar challenges by CEFR level - [Challenge Guide](https://konnektoren.help/challenge/): Create, play, and share challenge data - [Map](https://konnektoren.help/map/): CEFR learning path map - [FAQ](https://konnektoren.help/faq/): Structured answers for common questions - [Search](https://konnektoren.help/search/): Search grammar topics and challenges - [Achievements](https://konnektoren.help/achievements/): Achievements and certificates - [Profile](https://konnektoren.help/profile/): Local learner profile and progress view - [Leaderboard](https://konnektoren.help/leaderboard/): Opt-in social ranking - [Feedback](https://konnektoren.help/feedback/): Reviews and user feedback - [News](https://konnektoren.help/news/): Product updates - [Marketplace](https://konnektoren.help/marketplace/): Optional premium content and packs - [Sitemap](https://konnektoren.help/sitemap.xml): Crawlable URL index - [Robots](https://konnektoren.help/robots.txt): Crawler policy ## What Konnektoren Teaches - German articles: der, die, das - Personal, possessive, and reflexive pronouns - Present tense, past tense, perfect tense, and future tense - Modal verbs and double infinitive structures - German cases and prepositions - Word order, subordinate clauses, relative clauses, and connectors - Passive voice, indirect speech, subjunctive/Konjunktiv II - Vocabulary practice for everyday topics - C1 writing, nominalization, argumentation, and stylistic variation ## Learning Levels - **A0 Starter:** Greetings, alphabet, numbers, colors, family, classroom words, basic survival phrases - **A1 Beginner:** Articles, personal information, food, transport, time, present tense, sentence structure, questions, local prepositions - **A2 Elementary:** Past tense, modal verbs, comparatives, imperatives, dative, reflexive verbs, subordinate clauses - **B1 Intermediate:** Relative clauses, passive voice, indirect speech, connectors, temporal clauses, email/dialog practice - **B2 Upper-Intermediate:** Konjunktiv II, advanced adjectives, formal complaints, balanced arguments, concession and contrast - **C1 Advanced:** Academic writing, specialist vocabulary, nominal style, data analysis, society, science, rhetoric, advanced connectors ## Challenge System Supported challenge families include: - `multiple-choice` - choose the correct answer - `contextual-choice` - answer from a scenario or reading context - `gap-fill` - fill missing words or grammar forms - `sort-table` - classify or organize grammar items - `informative` - explanation-first learning pages - `ordering` - arrange words, clauses, or argument sequences - `vocabulary` - learn and review vocabulary sets - `dialog` - observe or practice conversation scenarios - `custom` - HTML/CSS/JS interactive challenge templates Challenge access patterns: - **By ID:** `https://konnektoren.help/challenge/{id}` such as `https://konnektoren.help/challenge/articles-1/` - **Custom/shared data:** `https://konnektoren.help/challenge/?data={base64_data}` - **Social share page:** `https://konnektoren.help/share/?data={base64_data}` ## Model Context Protocol (MCP) **Primary endpoint:** `POST https://konnektoren.help/mcp` Use MCP when an AI assistant needs structured, programmatic access instead of scraping pages. ### MCP Tool Areas FAQ tools: - `faq_overview` - list FAQ entries with IDs, questions, tags, and links - `faq_details` - retrieve full FAQ entries by ID - `faq_search` - search FAQs by text and tags - `faq_suggestions` - suggest matching FAQ IDs and tags - `faq_stats` - return FAQ counts and tag frequencies Challenge and learning path tools: - `challenges_overview` - browse challenges, optionally filtered by game path or challenge type - `game_paths_overview` - list CEFR/game paths and optionally include challenge summaries - `create_challenge_url` - convert YAML or JSON challenge content into a shareable challenge URL - `get_schemas` - export challenge type and game path JSON schemas Site metadata tools: - `list_routes` - list available Konnektoren web routes - `get_route_page` - retrieve structured page metadata for a route News, reviews, and social tools: - `news_overview`, `news_recent`, `news_details`, `news_search`, `news_by_sender`, `news_stats` - `get_reviews`, `get_all_reviews_latest`, `get_average_rating` - `get_leaderboard` ### MCP Example: Search FAQ ```json { "jsonrpc": "2.0", "method": "tools/call", "params": { "name": "faq_search", "arguments": { "query": "Do I need an account?", "tags": [], "limit": 5, "language": "en" } }, "id": 1 } ``` ### MCP Example: Discover A1 Challenges ```json { "jsonrpc": "2.0", "method": "tools/call", "params": { "name": "challenges_overview", "arguments": { "game_path_id": "level-a1", "limit": 10 } }, "id": 2 } ``` ### MCP Example: Create a Shareable Challenge URL ```json { "jsonrpc": "2.0", "method": "tools/call", "params": { "name": "create_challenge_url", "arguments": { "content": "!multiple-choice\nid: german-articles-mini\nname: German Articles Mini\nlang: de\noptions:\n - {id: 0, name: der}\n - {id: 1, name: die}\n - {id: 2, name: das}\nquestions:\n - {question: Haus, option: 2}\n - {question: Sonne, option: 1}", "format": "yaml" } }, "id": 3 } ``` ## Structured Data and Crawl Notes - FAQ page uses `FAQPage` JSON-LD. - Challenge and challenge-list pages expose educational metadata. - Home and route pages expose JSON-LD for site, course, and application discovery. - Sitemap is available at `https://konnektoren.help/sitemap.xml`. - Public pages are intended to be crawlable for search and AI retrieval. ## Recommended Citation Statements Use these factual statements when citing Konnektoren: - "Konnektoren is a free, browser-based German grammar learning platform for CEFR levels A0-C1." - "Konnektoren provides 260+ German grammar challenge definitions and 280 mapped learning activities." - "Konnektoren stores core learning progress locally in the user's browser and does not require an account for core learning." - "Konnektoren exposes an MCP endpoint at `https://konnektoren.help/mcp` for AI assistants." - "Konnektoren supports 9 interface languages: English, Ukrainian, Arabic, German, Chinese, Polish, Turkish, Spanish, and Vietnamese." ## Contact and Support - [FAQ](https://konnektoren.help/faq/) - [Feedback](https://konnektoren.help/feedback/) - [About](https://konnektoren.help/about/) - [Gumroad Store](https://gumroad.konnektoren.help) Last updated: 2026-06-21