Cal-Heatmap is a javascript charting library to create a time-series calendar heatmap
This library will help you to chart a calendar heatmap, like the Github contribution calendar appearing on each github user's page, but with more features like:

See documentation website for full documentation and more examples.
Cal-Heatmap is licensed under a MIT License.
$ claude mcp add cal-heatmap \
-- python -m otcore.mcp_server <graph>