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Search and read Edgepedia, a free and growing encyclopedia with citations. No key.
Create interactive 2D and 3D graphs with validated equations, shareable links, and PNG previews.
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.
Save vocabulary from any AI chat; see each word in every language you know; review it with FSRS.
Practice Spanish and French using saved vocabulary, grammar progress, and practice focus.
Create interactive 2D and 3D graphs with validated equations, shareable links, and PNG previews.
Spaced-repetition flashcards your AI writes, quizzes you on by voice, and schedules with FSRS.
Text to speech for your AI. Your AI can send text to Doc Player to read it aloud. You will see a reader window with the text and you can control the playback sentence by sentence. Find an example here: https://documentplayer.com/connect-ai/
Read-only access to the independent Grok Bot Wiki: search community bots and retrieve practical guides, workflow resources, and directory information. Unofficial educational resource, not affiliated with xAI; public listings are not independently verified performance claims.
DeepMark helps teachers deliver rapid, consistent marking with meaningful feedback for every student — in a fraction of the time. What once took a week, now takes one free period.
**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.
A hosted LaTeX editor your assistant can actually use. Search 1,019 free templates, create and edit projects, and compile them to PDF on a real TeX Live farm, getting back the PDF or the compile log when a build fails. Thirteen tools behind OAuth 2.1, with nothing to install and nothing to run locally.
Search animals in eight languages with habitats, countries, photos and source credits.
Build your mentoring inquiry with Marian Kamenistak: formal offer in 16 minutes, 16% AI discount.
Educational MCP server with 17 math/stats tools, visualizations, and persistent workspace
Daily history trivia EN/ES. Preview free; question $0.01, with answer $0.03 USDC (x402, Base).
Chords, scales, transposition, capo and tempo maths, with links to free interactive music tools.
Search 1,673 source-linked exam blueprints with reviewed guidance. Read-only; no API key.
EU AI Act Article 4 (AI literacy) readiness check and intro booking with SpinGras, Amsterdam.
Score academic and professional writing against published criteria with three reference models.
