Coding with API Keys

With a Coding API key you can use programming tools that work with an OpenAI-compatible API. The tool sends requests to AI-School. AI-School checks the key, the budget, the validity period, and the allowed models.

Then AI-School processes the request via the environment's technical integration.

What do you need?

You need three pieces of information:

Information	Where to find it?
API key	You get this from an administrator or teacher
Endpoint	https://europe-west1-ai-school-pro.cloudfunctions.net/coderenOpenAiCompatibleApi/v1
Model name	For example gpt-5.6-luna, gpt-5.6-terra, or gpt-5.6-sol

The API key starts with ais.. Treat this key as a password.

Which model do you choose?

For most students, GPT-5.6 Luna is a good starting point. This fast model is suitable for programming help during the lesson and everyday code questions.

For teachers or advanced students, GPT-5.6 Terra fits well with larger projects and more complex code. Choose GPT-5.6 Sol for the most demanding tasks with a lot of analysis, planning, or reasoning.

Which tool should you choose?

AI-School recommends two tools:

Tool	Recommended for	Why
Aider	Students coding in class	Explicit, clear, and less agentic
OpenCode	Teachers and advanced users	Agentic CLI tool with a desktop application

Aider for students

Aider works as a pair-programming tool in the terminal. The user asks for help, sees changes, and stays relatively close to the code. That fits well with learning to code: the student gets support but remains involved in what happens.

See also the official Aider documentation.

OpenCode for advanced use

OpenCode is more agentic. The tool can perform steps autonomously, edit files, and develop tasks further. That is powerful, but also requires more understanding of code, git, and local development environments.

See also the official OpenCode documentation.

Safe handling of keys

Do not share your API key publicly and do not put it in code you share.

Preferably use:

• environment variables
• a local .env that is not committed to git
• the tool's built-in configuration

For OpenCode, for example, you can use a .env in the project folder:

AI_SCHOOL_CODEREN_API_KEY=ais.your-api-key

Ensure the tool actually loads this .env. In PowerShell you can also set the variable temporarily for the current terminal:

$env:AI_SCHOOL_CODEREN_API_KEY="ais.your-api-key"

Note

Never place API keys in a public repository, Teams chat, shared document, or screenshot.

If the key does not work

Check:

• whether Coding is enabled for the environment
• whether your key is still active
• whether the budget is not exhausted
• whether the key falls within the configured validity period
• whether you are using an allowed model
• whether the endpoint is configured correctly
• whether the tool sends the API key as Authorization: Bearer ...
• whether the tool does not send provider-specific parameters that AI-School Coding does not support

If in doubt, ask an administrator or teacher to check the key.