MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

QuizLink

Track your learning journey, everywhere. Turn dead time into skills with quizzes and flashcards.

Checks passed
14 / 22

0 failed · 8 not measured

Median response
635 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
34

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 635 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name quizlink-mcp.

  • Pass
    Lists tools

    tools/list returned 34 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 635 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 635 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    180 of 204 parameters have a description (88%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T13:02:25.3997Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using QuizLink

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http quizlink https://mcp.quizlink.net/stream

Capabilities

Tools 34

about_quizlink

Show QuizLink's interactive feature guide. ONLY use when the user explicitly asks about QuizLink itself - questions like "what is QuizLink?", "show me QuizLink features", "help me get started with QuizLink", or "what can QuizLink do?". Do NOT use for general questions, math, conversation, or anything unrelated to learning about QuizLink's capabilities. Displays: coin costs, input sources (notes/images/PDFs/YouTube), 8 learning types (flashcards/podcasts/quizzes/etc), study games. FREE.

Discovered
add_to_liked_courses

Add a course to your favorites/bookmarks for quick access later. Requires authentication. FREE call that does NOT count against rate limits. Idempotent - can safely call multiple times with same course_id.

Discovered
change_flashcard_settings

Update your flashcard generation preferences. Requires authentication. Set reset_to_default=true to restore all defaults. **Settings:** - language: Any language code (e.g., "en", "es", "ja") - cards_per_unit_min/max: Card count range (4-7) - card_styles: Teaching persona array (e.g., ["supportive tutor"], ["professor"], ["study buddy"]) - image_theme: Any art style (e.g., "vibrant educational", "anime", "minimal", "watercolor") - image_source: "ai" (AI-generated images) or "stock" (stock images), default "ai" **Defaults:** en, 4-7 cards, supportive tutor persona, vibrant educational theme, AI images FREE (no coin cost).

Discovered
change_podcast_settings

Update your podcast generation preferences. Requires authentication. All fields are optional. **Settings:** - language: Language code (max 5 chars). Supported: "en" (English), "es" (Spanish), "fr" (French), "de" (German), "it" (Italian), "pt" (Portuguese) - accent: Voice accent. Options: "US" (American), "UK" (British), "AU" (Australian) - num_tutors: 1 (Solo narrator) or 2 (Duo conversation) - podcast_length_min/max: Target length in minutes (1-10) - speaking_styles: Array like ["Conversational"], ["Educational", "Enthusiastic"], etc. **Examples:** - Spanish podcast: {"language": "es"} - British English: {"language": "en", "accent": "UK"} - Formal duo: {"num_tutors": 2, "speaking_styles": ["Formal", "Educational"]} FREE (no coin cost).

Discovered
change_quiz_settings

Update your quiz generation preferences. Requires authentication. Customize language, questions per unit (1-10), time limit, difficulty level, question types (multiple_choice, true_false, fill_blank, essay, matching), and passing score (0-100%). All fields are optional - only provided fields will be updated. FREE (no coin cost).

Discovered
complete_unit

Mark a learning unit as completed after the user achieves a passing score (≥50%). Awards XP, unlocks the next unit, and checks for course completion. Called automatically by learning widgets (quiz, flashcards, etc.) when the user finishes. FREE call - no coin cost.

Discovered
create_crossword

Generate an AI-powered crossword puzzle from either an existing unit (unit_id) or custom sources (title + notes/webpage/youtube/documents/images/audio/ai_research/ai_chat_context). Creates word-clue pairs and an interactive grid puzzle. Supports both course-based (unit_id) and standalone (sources) modes.

Discovered
create_excalidraw

Create a hand-drawn style diagram using Excalidraw. Generates 5-stage progressive diagrams for any concept - flowcharts, mind maps, math visualizations, system architectures, and more. Each stage builds on the previous one for an animated reveal effect. Costs 15 coins.

Discovered
create_fill_blank

Generate 5 AI-powered fill-in-the-blank questions from either an existing unit (unit_id) or custom sources (title + notes/webpage/youtube/documents/images/audio/ai_research/ai_chat_context). Each question has multiple alternative answers. Supports both course-based (unit_id) and standalone (sources) modes.

Discovered
create_flashcards

Generate 5 flashcards with interactive quizzing. To use: provide 'title' (required) and 'ai_research' with comprehensive topic research. Example: {"title": "NASA Basics", "ai_research": "[Your research about NASA...]"}. The ai_research field should contain detailed information about the topic - the more comprehensive your research, the better the flashcards. Optionally include notes, webpage_url, youtube_link, or other sources. Each card has a question, answer and hint.

Discovered
create_match_pair

Generate 10 AI-powered match-pair questions from either an existing unit (unit_id) or custom sources (title + notes/webpage/youtube/documents/images/audio/ai_research/ai_chat_context). Students match left items with corresponding right items (2 sets of 5 pairs each). Supports both course-based (unit_id) and standalone (sources) modes.

Discovered
create_mcq

Generate 5 multiple-choice questions when the user asks for multiple choice or MCQ. Generates from an existing unit (unit_id) or from sources (title + notes/webpage/youtube/documents/images/audio/ai_research/ai_chat_context).

Discovered
create_quiz

Create a quiz when the user asks for a quiz or to be tested without naming a format. Shows a selector where the user picks the format: multiple choice, fill-in-the-blank, match pairs, ranking, crossword or flashcards.

Discovered
create_ranking

Generate 5 AI-powered ranking questions from either an existing unit (unit_id) or custom sources (title + notes/webpage/youtube/documents/images/audio/ai_research/ai_chat_context). Students order items by specific criteria (chronological, size, importance, etc.). Each question has 4-6 items to rank. Supports both course-based (unit_id) and standalone (sources) modes.

Discovered
edit_crossword

Edit existing crossword puzzle content (title, word-clue pairs, grid size, difficulty). Updates are saved to database and cache is invalidated. Free (no coin cost). Requires authentication and ownership.

Discovered
edit_excalidraw

Edit an existing Excalidraw diagram with natural language instructions. Modifies the diagram based on your instructions and regenerates. Requires diagram_id from a previous create_excalidraw response. Costs 15 coins.

Discovered
edit_fill_blank

Edit existing fill-blank question content. IMPORTANT: question_id MUST be the actual UUID from 'data.items[].id' in the create_fill_blank response - do NOT invent IDs. Updates saved to database. Free (no coin cost). Requires authentication and ownership.

Discovered
edit_flashcards

Edit existing flashcard content (concept, question, answer, hint, visual hints, tags, image, difficulty). Updates are saved to database and cache is invalidated. Free (no coin cost). Requires authentication and ownership.

Discovered
edit_match_pair

Edit existing match-pair question content (left item, right item, hint, explanation, difficulty, pair set). Updates are saved to database and cache is invalidated. Free (no coin cost). Requires authentication and ownership.

Discovered
edit_mcq

Edit existing MCQ question content (question text, options, correct answer, explanation, difficulty). Updates are saved to database and cache is invalidated. Free (no coin cost). Requires authentication and ownership.

Discovered
edit_quiz

Edit existing quiz content (title, config, sections, passing score, time limit). Updates are saved to database and cache is invalidated. Free (no coin cost). Requires authentication and ownership.

Discovered
edit_ranking

Edit existing ranking question content (question text, items, order type, hint, explanation, difficulty). Updates are saved to database and cache is invalidated. Free (no coin cost). Requires authentication and ownership.

Discovered
my_courses

Get courses you've enrolled in, bookmarked/favourited, or explore community courses. Returns paginated results with progress tracking and metadata. Supports types: 'enrolled' (your enrolled courses), 'favourites' (bookmarked courses), 'community' (public courses). FREE call that does NOT count against rate limits.

Discovered
my_flashcard_settings

Get your flashcard generation preferences including language, cards per unit range (min/max), preferred card styles, and image theme. Returns current settings or 404 if not initialized. FREE (no coin cost). Requires authentication.

Discovered
my_learning_diary

View your personal learning diary calendar. Shows all your activity including logins, learning sessions, achievements, coin transactions, and more. Displays a monthly calendar view with event icons and detailed information when clicking on days. Free (no coin cost).

Discovered
my_podcast_settings

Get your podcast generation preferences including language, accent (US/UK/AU), number of tutors (1-2), podcast length range (min/max minutes), and speaking styles. Returns current settings or 404 if not initialized. FREE (no coin cost). Requires authentication.

Discovered
my_profile

Get current authenticated user information including profile, subscription status, coins, XP, and groups. Works for both authenticated users and anonymous/freemium users. This is a FREE call that does NOT count against rate limits.

Discovered
my_quiz_settings

Get your quiz generation preferences including language, questions per unit range (min/max), time limit, difficulty level (easy/medium/hard/adaptive/mixed), question types, and passing score. Returns current settings or 404 if not initialized. FREE (no coin cost). Requires authentication.

Discovered
play_chess

Start a chess game against an AI opponent as a study break. Options: difficulty (beginner 800, intermediate 1200, advanced 1600, master 2000 Elo), player_color (white/black/random), time_control (blitz/rapid/classical/unlimited), opening_query (optional, e.g. 'sicilian dragon', 'italian game') with variation (optional). Includes move validation, opening descriptions and post-game analysis.

Discovered
play_memory_game

Start a memory card-matching game as a study break. Options: grid size (4x4, 6x6, 8x8) and theme. Tracks moves, time and best score.

Discovered
play_snake

Start a game of Snake as a short study break. The snake grows as it collects food and speeds up as the score rises. Options: difficulty (easy/medium/hard), game_mode (classic/timed), grid_size (10-30), speed (1-10). Runs entirely in the widget; no content is generated.

Discovered
remove_liked_course

Remove a course from your favorites/bookmarks. Requires authentication. FREE call that does NOT count against rate limits. Idempotent - safe to call even if course is not in favorites.

Discovered
show_leaderboard

View competitive rankings and see how you compare to other learners. Filter by time range (daily/weekly/monthly/all-time) and optionally by specific course. Shows top performers (podium), your position highlighted, and detailed statistics. Use auto_page=true to automatically show the page containing your rank. FREE call that does NOT count against rate limits.

Discovered
study_concept

Create an interactive study course on a topic or from the user's sources (notes, URLs, PDFs, YouTube, images, audio). Use when the user wants to study a topic, prepare for a test, exam or interview, understand a concept, or make a study guide. The course includes structured units with quizzes and flashcards. Pass course_id to open an existing course instead.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected635 ms34