"Google Sheets" matching MCP connectors:
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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.
French RNCP/RS certification registers: search, sheets, blocs, validity, SIRET habilitation.
Sudoku MCP server for free Sudoku puzzles, printable Sudoku worksheets, answer sheets and Sudoku Online playable collections. Eight tools generate verified unique puzzles, check uniqueness, analyze singles-based difficulty, validate progress and provide hints. Make packs of up to 20 puzzles in A4 or US Letter PDFs. Streamable HTTP; free API key and attribution required. Website: https://sudokumax.com — Setup: https://sudokumax.com/developers/mcp
Proctor AI is a free AI grading tool built for teachers who lose evenings to marking. Upload a single PDF of the whole class and the agent splits the papers, reads handwritten answer sheets, grades each one against your rubric, runs integrity analysis for copying and AI-written text, and drafts personalised feedback for every student. The teacher reviews and approves every mark. Now with a Claude MCP so you can grade a class by chatting with Claude. Trusted by 2,000+ teachers.
