Schengen 90/180 Calculator for ChatGPT

io.github.al157/schengen-mcp

Schengen 90/180 rolling-window calculator MCP server: stay math, trip checks, rule explainer.

client:ChatGPT transport:streamable-http tools:3

Install Schengen 90/180 Calculator in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://schengen-mcp.alickzheng618.workers.dev/mcp

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