Public Holidays Calendar — Five Countries, 2000–2035 for ChatGPT

io.github.kriton-dev/public-holiday-calendar

Build offline public-holiday calendars for five countries and bounded years

client:ChatGPT transport:streamable-http

Install Public Holidays Calendar — Five Countries, 2000–2035 in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.apify.com/?tools=hermeskd/public-holiday-calendar

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs