MackingJAI mocks the process of using OpenAI API for chat models by using ChatGPT Mac app and Apple Shortcuts. Users can simplify the interaction with ChatGPT without using an API key.
Think of it as Ollama or any OpenAI API compatible option, but it uses OpenAI's own ChatGPT Desktop app as the backend instead.
- Download and install the DMG file from releases
- Install the shortcut by clicking on
Install Shortcutfrom the menu icon or from here
- Make sure you have ChatGPT Desktop app installed and running on your Mac.
- In any OpenAI API compatible request, set the API base to
http://127.0.0.1:11435/v1/instead ofhttps://api.openai.com/v1and set any value for the API key. The API key is not used in this mock. - The shortcut will automatically detect the request and send it to the ChatGPT Desktop app
Note: You may be asked to give some permissions to the shortcut to run. This is necessary for the shortcut to work properly.
Theory, you can use any OpenAI API compatible library to make requests to the mocked API. However there are many limitations discussed below.
curl http://127.0.0.1:11435/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer No need for API" \
-d '{
"model": "o3-mini-high",
"messages": [
{
"role": "user",
"content": "How many times the letter r occur in the word Srawberry? Answer with a single number."
}
]
}'from langchain_openai import ChatOpenAI
chat = ChatOpenAI(
temperature=15,
model_name="gpt-4",
openai_api_base="http://127.0.0.1:11435/v1",
openai_api_key="No key",
)
prompt = "How many prime numbers between 1 and 100"
response = chat(prompt)
print(response.content)- Everything is limited by your chatgpt desktop application and your subscription including available models, rate limits and generation speed.
- There's no way to set the system prompt or use any other parameters.
- You can send images in this mock.
By default, all available models in your ChatGPT Desktop app are available in MackingJAI.
- If you are modified a code that uses OpenAI API with acertain snapshot e.g.,
gpt-4o-2024-05-13you will be redirected to the same model. GPT4.1models are not supported since they are API exclusive. Sogpt-4.1,gpt-4.1-mini, andgpt-4.1-nanoare redirected toGPT-4,GPT-4oandGPT-4o-minirespectively.
- Create a homebrew cask for easy installation
- Explore similar functionality for Windows users
- Explore how to integrate conversation history
- Explore how to integrate system prompt if possible
MackingJAI is not meant to replace the OpenAI API by any means; it’s simply a mock for hobbyists and developers who want to experiment with the OpenAI API without using an API key for personal projects and automations.