"Free Graph and Network Visualization Tools (No API Key Required)" matching MCP servers:

An MCP server for tracking student learning via a knowledge graph, with spaced repetition scheduling and intelligent queries to identify gaps, misconceptions, and optimal next steps.

A local MCP server that exposes Canvas LMS courses, assignments, grading, discussions, modules, pages, files, messaging, and peer reviews to an AI assistant through about 100 Markdown-returning tools, with preview-then-confirm behavior for any write operations.

MCP server exposing NTNU course data (search, schedules, grades, semesters) as tools for LLM agents.

An MCP server for Canvas LMS that provides 15 curated tools for everyday student work and a gateway to reach every endpoint your Canvas instance exposes.

Provides access to API Ninjas Random Word API to generate random words by type (noun, verb, adjective, adverb) for creative writing, games, and language learning applications.

An AI-powered study assistant that generates quizzes, flashcards, summaries, and concept explanations from study materials using the Model Context Protocol.

Enables AI agents to access and interact with the Sefaria database of Jewish texts, including retrieval, search, and related content.

Evidence-first YouTube research server enabling search, transcript citation, video analysis, flashcards, and collateral generation for MCP hosts and VS Code.

Provides Latin NLP tools for tokenization, lemmatization, POS tagging, reported speech detection, and LiLa Knowledge Base querying via MCP.

A local MCP study assistant that explains topics, creates study plans, and generates revision checklists through the Model Context Protocol.

Enables bidirectional lookup of Mi'kmaq and English words with definitions and examples, and provides tools for learning and dictionary statistics, integrating seamlessly with AI-powered IDEs.

Enables a study assistant to explain topics, build study plans, and generate revision checklists, with read-only access to course outline and status resources.

Enables access to Network School Luma calendar events through Claude Desktop. Allows users to view today's events, search upcoming events, and register for events directly with their contact information.

A set of tools enabling AI agents to interact with Canvas LMS, allowing users to find relevant resources, get course information, and navigate modules through natural language queries.

Provides structured MCP tools for querying college database records, including student profiles, course details, enrollments, faculty teaching assignments, and academic statistics.

Predicts the likelihood of school closures due to snowfall and severe winter weather using real-time weather data and machine learning algorithms.

Search Japanese onomatopoeia by scene, not by spelling. 161 entries with nuance explained in Japanese and English. Fully offline MCP server, no API key required.

Provides an MCP interface for accessing YOKATLAS (Turkish Higher Education Council Atlas) data, enabling LLM applications like Claude to search and retrieve details about undergraduate and associate degree programs in Turkey.

Enables AI agents to browse and teach the Deep Learning DIY course, providing access to modules, notebooks, transcripts, quizzes, slides, and homework via MCP tools.

Korean Saju (Four Pillars / 사주명리) birth-chart analysis — 5 free tools: chart, five elements, gyeokguk, yin-yang/climate balance, and classical yongshin candidates. Local stdio server via npx, no API key required.