"Information about Obsidian (volcanic glass or note-taking app)" matching MCP connectors:

Educational MCP server with 17 math/stats tools, visualizations, and persistent workspace

Search the Legends of Learning K-8 games catalog and standards alignment

Read-only scripture-study engine: complete-or-fail concordance over Greek NT, Hebrew OT, LXX.

Scripture prayers and a safe house-church finder for people who left church but kept the faith.

Educational Weather Stats MCP Service — Tollbooth DPYC monetization sample

Read-only semantic search over Vedic scripture verses, commentaries, and recorded lectures.

Read and author HiveLearn courses, events, quizzes, certificates, resources, leaderboards, tracks.

Read Hebrew Bible (Tanakh) verses & chapters in 10 languages, plus guided study plans.

Read-only ROSCA and savings-circle answers and calculators, from Wiremi's public facts.

Search crops, check companion planting, explore seasonal calendars, and find planting plans.

Kannada/English Carnatic flute KSGMS syllabus — search lessons, log practice, ask a RAG guru.

Multilingual YouTube → Knowledge Pack engine. Paste a video URL and get a structured pack — summary, key ideas, glossary, quiz, transcript with timestamps — in Spanish, Portuguese, German, or English. Anonymous endpoint plus OAuth-gated tools for library search, RAG Q&A on a single pack, and Anki export.

Biblical and theological research MCP server. Ask pastoral questions, run academic-grade queries across 2M+ scholarly passages (lexicons, commentaries, church fathers, Dead Sea Scrolls, Talmud), or search raw sources directly. Free, no API key required.

Browse Bible verse collections from Remember Me, a free memorization app in 48 languages

Read and write open-source flashcards through split read/write MCP tools.

Nuria Islamic app: source-cited Islamic guidance, in scholarly review; sensitive Qs go to a human.

Rehearse a talk or presentation and get instant feedback on your delivery.

Authoritative JLPT-graded Japanese dataset (kanji, vocab, grammar, history) via MCP and REST.

Your AI agent builds interactive block-based courses over MCP; take them at learnwithagents.app.

AI cycling coach — training plans and beginner guidance via the Etapa API.