Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Classmarker MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.
- Builders & DevelopersCOMPOSIOFOR YOUGive Claude, codex, or any harness secure access to 1000+ tools
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How to integrate Classmarker MCP with Codex
Connect Codex to Classmarker MCP. Add student to biology exam access list, create a new question for math quiz, and more using natural language, with authentication handled for you.
Api Key
ClassMarker is a professional online quiz maker for business and education. It provides instant grading, flexible test design, and in-depth reporting.
28 Tools
Introduction
Also integrate Classmarker with
Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.
How to install Classmarker MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.
(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
bash
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
bash
codex mcp listCodex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }What is the Classmarker MCP server, and what's possible with it?
The Classmarker MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Classmarker account. It provides structured and secure access to your quiz management tools, so your agent can create tests, manage users and groups, add questions, and control access codes—without manual intervention.
- Automated user and group management: Let your agent create new users, add them to groups, or delete users and groups for streamlined participant organization.
- Dynamic question and category creation: Instruct your agent to add new questions or categories to your exams, helping you build tests faster and keep content organized.
- Access code and permissions control: Enable your agent to generate, assign, or delete access codes for specific exams, giving or revoking test access instantly as needed.
- Test link and API key management: Allow your agent to manage test links or revoke API keys to maintain secure and up-to-date exam distribution.
- Efficient data cleanup: Ask your agent to remove users, groups, test links, or access codes, keeping your Classmarker account tidy and up to date with minimal effort.
Conclusion
You've successfully integrated Classmarker with Codex using Composio's MCP server. Now you can interact with Classmarker directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Classmarker operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1000+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Classmarker operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
TOOLS
Supported Tools
Every Classmarker action and event your agent gets out of the box.
FRAMEWORKS
How to build Classmarker MCP Agent with another framework
OpenAI Agents SDK
Use Classmarker MCP with OpenAI Agents SDK
Claude Agent SDK
Use Classmarker MCP with Claude Agent SDK
Claude Code
Use Classmarker MCP with Claude Code
Claude Cowork
Use Classmarker MCP with Claude Cowork
OpenClaw
Use Classmarker MCP with OpenClaw
Hermes
Use Classmarker MCP with Hermes
Google ADK
Use Classmarker MCP with Google ADK
LangChain
Use Classmarker MCP with LangChain
Vercel AI SDK
Use Classmarker MCP with Vercel AI SDK
Mastra AI
Use Classmarker MCP with Mastra AI
LlamaIndex
Use Classmarker MCP with LlamaIndex
CrewAI
Use Classmarker MCP with CrewAI
Pydantic AI
Use Classmarker MCP with Pydantic AI
AutoGen
Use Classmarker MCP with AutoGen
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FAQ
Frequently asked questions
With a standalone Classmarker MCP server, the agents and LLMs can only access a fixed set of Classmarker tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Classmarker and many other apps based on the task at hand, all through a single MCP endpoint.
Yes, you can. Codex fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Classmarker tools.
Yes, absolutely. You can configure which Classmarker scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.
All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Classmarker data and credentials are handled as safely as possible.
Start with Classmarker.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Classmarker tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building