My newest coding obsession is building an MCP server for Google Classroom using Google Apps Script. I have created hundreds of Google Apps Script projects over the years to make Google Classroom more efficient. If you have a specific use case, do not hold your breath that Google will add it as a feature. Code it yourself! Now, instead of just running a script from a spreadsheet menu, an MCP server lets me connect my Google Classroom code directly to Gemini.
Is MCP For You?
I may have lost you already! If you are just looking for tips on how to organize your Classwork page or post an assignment for Monday morning, you do NOT need an MCP server. It is way faster to just open Google Classroom and post it yourself.
This post is not your first coding project. However, if you already love coding in Google Apps Script, or you have been playing with vibe coding and the Gemini API, this is for you. You are going to want to try this.
The Problem With Course IDs
In my ReuseGC unofficial Add-on, the first action is to generate a list of your Google Classroom classes so I can grab the Course ID. If you’re doing your own coding for Google Classroom you’ll also need to figure out how to get that 12 digit Course ID number.
With an MCP server for Google Classroom, I never have to look up a Course ID again.
What Is an MCP Server
MCP stands for Model Context Protocol. When I first ran my MCP code in the Apps Script execution log, I thought it looked pretty stupid. It spits out a giant wall of JSON text.
Then it clicked. That ugly output is not for me to read. It is for Gemini to read!
Normally, Gemini cannot see inside your Google Classroom. When you set up an MCP server in Google Apps Script, you write functions that tell the AI what tools it is allowed to use.
When I type a prompt like, “Post an announcement to my Algebra class to share their project links in the comments,” Gemini asks my MCP server for my list of courses. Gemini reads that giant list of over 300 classes in a second, finds the right Course ID on its own, and runs my function to post the announcement.
Does an MCP Server Change Your Permissions
When you hear the word “server,” it is easy to worry about student data and permissions. Does creating an MCP server change your Google Workspace permissions? No.
What is great about using Google Apps Script is that it runs in your browser and uses your existing Google account permissions. You do not even need to set up a Google Cloud project or mess with OAuth verification.
Even better, the AI can NOT just do whatever it wants in your Google Classroom. It can only run the exact functions you write in your script. If you only code a function to list your classes and a function to post an announcement, those are the only two things Gemini can do. It cannot delete a class or touch your grades because you did not write code for that.
Why Not Just Use a Regular Script
If you already know how to call Google Classroom in Apps Script, why bother wrapping it in an MCP server?
When I code a traditional script or a Google Workspace Add-on, I have to build the whole user interface. I have to code a sidebar menu, create a dropdown or a Picker so the user can select a class, and pre-program the exact steps in order.
With an MCP server, I do not have to build a menu or pre-program the sequence. I just write the building blocks. If I give my MCP server a function to read a Google Doc and a function to post to Google Classroom, Gemini figures out how to combine them. I can take my rough notes from a project observation Doc and tell Gemini to post discussion starters to three different classes without clicking through a single menu.
10 Ways to Use a Google Apps Script MCP Server With Google Classroom
Once you realize you do not have to build a spreadsheet menu for every single script, your brain starts spinning with ideas. Because Google Apps Script already talks to Docs, Sheets, Slides, Forms, and Drive, adding those tools to your Google Classroom MCP server lets Gemini connect the dots across your whole Google Workspace.
1. Turn Your Clipboard Observations Into Class Announcements
Perhaps you’re walking around the room and typing quick notes into a Google Doc while students are working in groups. With an MCP server that connects Google Docs and Google Classroom, I can tell Gemini to read my messy observation notes from today and post a customized shout-out announcement to Period 2 and a completely different hint announcement to Period 4.
2. Update an Assignment Across Multiple Classes at Once
Google Classroom lets you post an assignment to multiple classes at the same time, which is great until you realize five minutes later that you need to change the directions or push back the due date! Editing an existing post across five different sections is a total booger because you have to open every single class and edit them one by one. With an MCP server, you just tell Gemini to find that assignment in all five of your Algebra classes and update the instructions or due date in one go.
3. Build Weekly Topic Headers Automatically
I organize my Classwork page by week or by unit. Instead of opening every class to add a new Topic, I can tell Gemini to check my classes, see if a Topic for “Unit 3” exists yet, and create it if it is missing.
4. Draft Small Group Project Spaces From a Google Sheet
When students choose their own inquiry topics in a Google Form or Google Sheet, your MCP server can read the spreadsheet groups, create a collaborative Google Slides deck for each group in Drive, and assign that specific link to just the members of that group in Google Classroom.
5. Pull Student Project Links Into One Class Showcase Doc
When students turn in links to their digital portfolios or creative projects, clicking into 30 individual submission cards in Google Classroom is painful. An MCP tool can grab all the submitted links for a specific assignment and format them into a clean Google Doc or Google Sheet so the whole class can view and give peer feedback.
6. Send Private Feedback Comments From a Voice Note or Doc
Giving timely feedback is what actually moves student learning forward, but clicking in and out of the Google Classroom grading screen takes forever. You can write or dictate your feedback for students in a single Google Doc, and tell Gemini to match the student names and post your notes to their assignment submissions.
7. Clean Up and Archive Old Workshop and Semester Classes
Remember how I said I have over 300 classes in my Google Classroom account? Archiving old demo classes one by one on the home screen is not how I want to spend my Saturday. With an MCP tool that updates course states, I can tell Gemini to find every active class with “2023” or “Sample” in the title and archive them for me.
8. Check Which Classes Are Missing a Resource Link
Have you ever posted a great resource to two of your classes and totally forgotten the third? Instead of clicking into each Classwork page to check, you can ask Gemini to look across your active classes and tell you which period did not get the link yet, and then tell it to post the missing material right there.
9. Turn a Google Slides Presentation Into a Guided Discussion Assignment
If you just finished making a Google Slides deck for tomorrow, you can ask Gemini to read the text on your slides, write three critical thinking prompts that ask students to defend their reasoning, and save them as a draft assignment in your Google Classroom under the right topic.
10. Summarize Student Questions From Class Comments
When students are actively collaborating and asking questions in the Google Classroom stream or assignment comments, it is easy to miss a comment buried in the thread. An MCP tool can pull the latest student comments across your classes so Gemini can tell you right away which three students are stuck on the same concept.
