"Open Collective" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
Create and manage flashcards, tags, and saved decks in Nibomo, and study due cards one question at a time through MCP.
An MCP server for Perigee, the open-source 3D viewer of the artificial objects orbiting the Earth, the Moon and Mars and of the spacecraft crossing the solar system. It lets an AI assistant (a teaching assistant, for example) answer questions such as “how far is Mars from the Earth on 1 December 2026?”, “where is the ISS now?” or “what is Lucy's mission?”, and hand the student a live 3D view, with how each number was obtained, from which data, how fresh and how accurate.
Guitar learning tools from Fretwork: name a chord from its frets, see open and barre chord shapes, transpose songs, find capo positions, show scales on the fretboard, find a song's key, find public-domain songs for the chords you know, check your level and build a daily practice plan. Read-only, no sign-in.
Turn one prompt into a live landing page and leads in your CRM. AXL MCP lets your AI agent build pages, capture leads, manage contacts, book calls, run email campaigns, and deliver courses. Open-source agent skill. Powered by AXL, a hosted SaaS platform. - **Skill and demo:** https://github.com/axlhq/business-stack - **Install the skill:** `npx skills add axlhq/business-stack` - **Connect MCP:** https://app.axl.tech/mcp — sign in to your AXL account in the browser (OAuth 2.1). Installation and connection are separate steps. **First run — paste this into your agent:** > Using AXL, build a landing page for my [offer] with a name-and-email form that saves each signup to the CRM. Show me a preview and ask before publishing. After I approve, publish it and give me the public and admin links. I will submit a test signup; then find that contact in the CRM and confirm the form answers were saved. - **MCP setup:** https://axl.tech/developers/mcp - **Documentation:** https://docs.axl.tech/mcp - **Product overview (77 seconds):** https://www.youtube.com/watch?v=jlhR9CafIww
Studocu helps students find study documents, set course context, ground answers from the open web, and manage authenticated study projects—attaching sources, reading artifacts, creating quizzes or mock exams, and keeping durable study memory—from any MCP client.
ScanSing reads printed sheet music. Give Claude a PDF or a photo of a score and it gets back MusicXML, the format MuseScore, Sibelius, Finale and Dorico open. It is the recogniser inside the ScanSing app for choir singers, offered as a connector. Once a score is recognised, Claude can answer questions about it without recognising it again: - what the key, time signature, tempo and length are, and each part's range, clefs and lyrics; - one voice on its own, for example just the alto line of a choir piece; - the score or a part moved to another key, with notes respelled for the new key signature; - a MIDI file, one track per part, to listen to or rehearse with; - a short-lived download link to open the result in a browser or notation app. It handles PDFs up to 40 pages and PNG, JPEG, HEIC, TIFF and WebP images, can recognise selected pages of a long PDF, and can split a songbook into one MusicXML per piece. A file can be given as a web link or a small image; in Claude Code, a file on your computer is sent through a one-time upload link. Recognition spends pages from your ScanSing plan, so it is the only tool that is not read-only. Everything else works on the stored result and is free. The first connection with a new email comes with 20 free pages; paid plans start at $9 a month for 300 pages. Scores and results are deleted about an hour after recognition and are never used for training.
**Swiss B2B sales and everyday-AI know-how — inside your AI assistant.** 113 free 5-minute learning modules from [latzerus.ch](https://www.latzerus.ch). No account, no API key, no cookies. `https://mcp.latzerus.ch/mcp` --- **`lernmodule_suchen`** — search all modules. Understands paraphrases, synonyms, plural forms and typos. **`lernmodul_lesen`** — one module in full: key points, practical steps, typical mistakes, FAQ. **`lernmodule_uebersicht`** — everything grouped by theme, or just one theme. **`ueber_latzerus`** — what the project is and who is behind it. --- **Topics** — cold calling · objection handling («too expensive») · closing · AI at work without the data leak · local models with Ollama · career positioning. **The modules are written in German.** So are the tool names — your assistant handles that. --- **Setup for Claude, ChatGPT, Cursor, VS Code, AnythingLLM, Open WebUI and LM Studio:** [latzerus.ch/mcp](https://www.latzerus.ch/mcp/) **Source, MIT:** [github.com/kriswindu/latzerus-mcp](https://github.com/kriswindu/latzerus-mcp) Knowledge project of Christoph Latzer, St. Gallen / Zurich. Quoting welcome — please name the source.
An open-source benchmark of how well LLMs solve nonogram puzzles, from 5x5 to 20x20. Query every result through a REST API or MCP server.
How to open and run a Korean internet newspaper with OnPress: plans, templates, guides. Read-only.
List Agentic Design School courses, read a public outline, and open the course page.
Open number-sense practice data and game catalogue for dyscalculia. Read-only.
Search German open educational resources (OER) via AMB/schema.org metadata, open licenses only.
Moroccan public-sector jobs: open recruitment exams, past papers, salaries, holidays.
Read-only mindfulness games, guided practices, research, glossary and PanchaVikas resources.
Check resume bullet points line by line: which open with an action verb, which carry a number, which use the first person or a phrase to delete, and what to change first. Includes the action verbs of the ResumeNext guide by type of work.
Compare state 529 plans, look up college costs and check qualified 529 expenses. Free, no key.
Ukrainian schools, community search and education budgets. Sources: EDBO, KATOTTG, Open Budget.
Find open times and book a free Cicero Learning consultation.
Find public career guides, explore grounded occupations, and open Rung for private resume work.
The open, measured register where AI agents evolve written English together.
DOAJ MCP — Directory of Open Access Journals
Open Library MCP — Internet Archive's open book metadata
Open-source AI courses taught by your AI tutor in conversation, with progress saved by MCP tools.
Read, write, and conversationally review open-source flashcards through split read/write MCP tools.
