Trading Calendar & Public Holidays (x402) for ChatGPT
io.github.vstockma/handelskalender-api
Stock exchange trading days, hours, live market status (28 exchanges) and holidays (247 countries).
client:ChatGPT
transport:streamable-http
tools:5
Install Trading Calendar & Public Holidays (x402) in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://handelskalender-api.pages.dev/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs