mito_ai

AI chat for JupyterLab. This codebase contains two main components:

A Jupyter server extension that handles the backend logic for the chat.
Several JupyterLab extensions that handle the frontend logic for interacting with the AI, including the chat sidebar and the error message rendermime.

Requirements

JupyterLab >= 4.0.0

Install

To install the extension, execute:

pip install mito-ai

Configuration

This extension has two AI providers; OpenAI and Mito (calling OpenAI). Mito is the fallback but the number of request is limited for free tier. To use OpenAI directly, you will to create an API key on https://platform.openai.com/docs/overview. Then set the environment variable OPENAI_API_KEY with that key.

The OpenAI model can be configured with 1 parameters:

OpenAIProvider.model: Name of the AI model; default gpt-4o-mini.

You can set those parameters through command line when starting JupyterLab; e.g.

jupyter lab --OpenAIProvider.max_completion_tokens 20 --OpenAIProvider.temperature 1.5

If a value is incorrect, an error message will be displayed in the terminal logs.

Uninstall

To remove the extension, execute:

pip uninstall mito-ai

Contributing

Development install

To ensure consistent package management, please use jlpm instead of npm for this project.

Note: You will need NodeJS to build the extension package.

The jlpm command is JupyterLab's pinned version of yarn that is installed with JupyterLab.

# Clone the repo to your local environment
# Change directory to the mito-ai directory

# Install mito-ai-core in editable mode first when developing from the monorepo
# (skip if you only use the PyPI release of mito-ai-core)
pip install -e ../mito-ai-core

# Required to deal with Yarn 3 workspace rules
touch yarn.lock

# Install package in development mode
pip install -e ".[test]"

# Install the node modules
jlpm install

# Build the extension
jlpm build

# Link your development version of the extension with JupyterLab
jupyter labextension develop . --overwrite

# Start the jupyter server extension for development
jupyter server extension enable --py mito_ai

# (Optional) Setup fixed Jupyter token for Cursor agent testing
# This creates a development-only config that allows Cursor to automatically test changes
python dev/setup_jupyter_dev_token.py

# Watch the source directory in one terminal, automatically rebuilding when needed
# In case of Error: If this command fails because the lib directory was not created (the error will say something like
# unable to find main entry point) then run `jlpm run clean:lib` first to get rid of the old buildcache 
# that might be preventing a new lib directory from getting created. 
jlpm watch

Then, in a new terminal, run:

# Run JupyterLab in another terminal
jupyter lab --autoreload

With the watch command running, every saved change will immediately be built locally and available in your running JupyterLab. With the --autoreload flag, you don't need to refresh JupyterLab to load the change in your browser. It will launch a new window each time you save a change to the backend.

By default, the jlpm build command generates the source maps for this extension to make it easier to debug using the browser dev tools. To also generate source maps for the JupyterLab core extensions, you can run the following command:

jupyter lab build --minimize=False

Development uninstall

pip uninstall mito-ai

In development mode, you will also need to remove the symlink created by jupyter labextension develop command. To find its location, you can run jupyter labextension list to figure out where the labextensions folder is located. Then you can remove the symlink named mito-ai within that folder.

Testing the extension

Integration tests

Integration tests for mito-ai are written using Playwright and Gelata in the mito/tests directory.

To run these tests, follow the directions in the tests/README.md file.

Backend Unit tests

Backend tests for mito-ai are written using pytest in the mito/mito-ai/mito_ai/tests directory.

To run the pytests, just run pytest in the mito-ai directory.

Backend Mypy tests

To run the mypy tests, just run mypy mito_ai/ --ignore-missing-imports in the mito-ai directory.

Frontend Unit tests

Frontend unit tests for mito-ai are written using Jest in the mito/mito-ai/src/tests directory.

To run the Jest tests, just run npm test in the mito-ai directory.

Frontend Tests

Frontend tests for mito-ai are written using Playwright and Gelata in the mito/tests directory. See the tests/README.md file for more information.

Frontend Linting

Frontend linting for mito-ai is done using ESLint in the mito-ai directory.

To run the ESLint tests, just run jlpm eslint in the mito-ai directory.

Performance Tests

Performance tests for mito-ai are written using pytest in the mito-ai/tests directory.

To run the performance tests, just run python -m pytest mito_ai/tests/performance_test.py -v -s in the mito-ai directory.

Note that you'll have to edit open_ai_utils.py, specifically the is_running_test condition.

Running Databases

To ensure reproducibility, databases, like Postgres, are created using Docker. To run:

docker-compose -f mito_ai/tests/docker/postgres.yml up

When you're done, stop and remove the container and its volumes with:

docker-compose -f mito_ai/tests/docker/postgres.yml down -v

Metadata

Release files for mito-ai 0.1.69

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for mito-ai 0.1.69
File	Size	Uploaded
mito_ai-0.1.69.tar.gz	19.3 MB	Jul 21, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for mito-ai 0.1.69
File	Interpreter	ABI	Platform	Reset
mito_ai-0.1.69-py3-none-any.whl 2.2 MB Jul 21, 2026	Python 3	none	any	Details

Total release size: 21.4 MB

Release files / mito_ai-0.1.69.tar.gz

Download URL	mito_ai-0.1.69.tar.gz
Size	19.3 MB
Tags	Source
SHA-256 checksum How to use checksums	`7a00e98d22f053e0c29876ec1f74c805e1847df995b98fc469fd9834b80f71d7`
BLAKE2b-256 checksum How to use checksums	`7a90ff5b089507a5d17bbc55f3f6009608da6146971b41d1683e875500b19ed5`
Upload date	Jul 21, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.11.15`

Release files / mito_ai-0.1.69-py3-none-any.whl

Download URL	mito_ai-0.1.69-py3-none-any.whl
Size	2.2 MB
Tags	Python 3
SHA-256 checksum How to use checksums	`ecd5c86b3eb57b12b7c871f5449c3c82a3c3c53422356a92b7ff243a0f454c5f`
BLAKE2b-256 checksum How to use checksums	`ed22a17e8cebafff25650e8bea2c08cd5021558f42d1339ca054a8a39dce5daf`
Upload date	Jul 21, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.11.15`