Classmarker for AI agents

ClassMarker builds online quizzes and exams with instant grading, used by businesses and schools that need customizable tests and detailed results. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

Connect Classmarker See the 28 actions ↓

EducationAPI keyMCP + RESTclassmarker.com

AUDIT LOG · CLASSMARKERPOLICY: acme-support

09:41:07 · claude · u_8f2read

classmarker.list_users

List Users✓ allowed · 212ms

09:41:08 · claude · u_8f2read

classmarker.get_question

Get Question✓ allowed · 164ms

09:41:09 · claude · u_8f2write

classmarker.create_user

Create ClassMarker User✓ approved · approved by user

09:41:12 · claude · u_8f2destructive

classmarker.delete_user

Delete User✕ blocked · policy: deny

EVERY CLASSMARKER CALL, ON THE RECORD

01 · USE CASES

What agents do in Classmarker.

Check a test's results

Pull recent results for a test link to see how a group of test-takers performed.

Create a new quiz question

Create a new question in a category, ready to add to an upcoming test.

Confirm before deleting a user

Confirm before deleting a user, since their test history and results are removed with it.

02 · ACTIONS

28 Classmarker actions, graded by risk.

Every Classmarker action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

Look things up. Allowed by default.

classmarker.list_users
List Users
classmarker.get_question
Get Question
classmarker.list_webhooks
List Webhooks
classmarker.list_questions
List Questions
classmarker.list_categories
List Question Categories
classmarker.get_test_details
Get Test Details
classmarker.get_user_details
Get User Details
classmarker.get_group_details
Get Group Details
classmarker.list_certificates
List Certificates
classmarker.get_recent_results_link_exam
Get Recent Results Link Exam
classmarker.get_recent_results_group_exam
Get Recent Results For Group Exam
classmarker.list_recent_results_for_links
List Recent Results for Links
classmarker.list_recent_results_for_groups
List Recent Results For Groups
classmarker.get_initial_finished_after_timestamp
Get Initial Finished After Timestamp

write

Create and change things. Allow, or ask the user first.

classmarker.create_user
Create ClassMarker User
classmarker.create_group
Create Group
classmarker.create_category
Create a new question category
classmarker.create_question
Create Question
classmarker.create_access_list_item
Create Access List Item
classmarker.put_category
Update Sub-Category
classmarker.put_question
Update Question
classmarker.put_parent_category
Update an existing parent category

destructive

Delete, cancel or archive. Ask first, or deny outright.

classmarker.delete_user
Delete User
classmarker.delete_group
Delete Group
classmarker.delete_api_key
Delete API Key
classmarker.delete_webhook
Delete Webhook
classmarker.delete_test_link
Delete Test Link
classmarker.delete_access_list_item
Delete Access List Item

03 · HOW IT WORKS

Classmarker in three steps.

01Your users connect ClassmarkerThey add their Classmarker api key on Arc0 Connect, under your brand. It goes straight into the vault.
02You set the rulesReads run, writes like “create ClassMarker User” can wait for the user, and “delete User” can be denied outright.
03Any agent can actYour agent calls Classmarker through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.

POLICY.TS

await arc0.policies.set('classmarker', {
  read: 'allow',
  write: 'ask',        // create_user
  destructive: 'deny',  // delete_user
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2

04 · AUTH AND DATA

How Classmarker connects.

Users add their Classmarker api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Classmarker connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH: API key
CREDENTIALS: Per-tenant encrypted vault
MODEL SEES: Results only, never credentials
AUDIT LOG: Every call, on every plan

05 · WORKS WITH

Use Classmarker from any agent.

Claude

ChatGPT

Cursor

Codex

VS Code

OpenAI Agents SDK

Claude Agent SDK

Vercel AI SDK

Mastra

LangGraph

06 · RELATED

More education apps.

Canvas574 actions

Accredible certificates36 actions

Blackboard314 actions

Google Classroom62 actions

D2L Brightspace45 actions

Heights Platform16 actions

WaniKani16 actions

Memberspot13 actions

ALL EDUCATION APPS →

07 · FAQ

Classmarker and Arc0, answered.

Q01

Can I use Classmarker with Claude, ChatGPT or Cursor?

Yes. Connect Classmarker to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Classmarker actions you allow.

Q02

How do users connect Classmarker?

Users add their Classmarker api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Classmarker actions can my agent take?

28 in total: 14 read, 8 write and 6 destructive, such as “create ClassMarker User”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Classmarker?

Yes. Actions like “delete User” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Classmarker too?

Yes. The same Classmarker connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Classmarker into your agent.

Your users connect Classmarker once, under your brand. Your agent gets 28 actions behind your policies, with every call on the record.

Connect Classmarker Browse all apps →

Free to build · MCP + REST · Audit log on every plan