Quokka Korea Tools for ChatGPT
com.thequokkacompany/korea-tools
Korean holidays, business days & legal deadlines, won amounts in words, NEIS/SMS byte counts
client:ChatGPT
transport:streamable-http
tools:17
Install Quokka Korea Tools in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.thequokkacompany.com/korea
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs