Terms
The software
ArchLang is open source under the MIT License. You may use, copy, modify and distribute it under those terms. It comes with no warranty of any kind, express or implied, as the license says.
The hosted endpoint
https://mcp.archlang.uk is provided as is, free, with no uptime guarantee. It may rate-limit or refuse traffic that looks abusive, and it may change or go away without notice. If you need certainty, run the same server yourself from the npm package.
Your drawings
You are responsible for what you draw and for how you use a drawing. ArchLang checks geometry; it is not a substitute for a licensed professional, and a plan it produces is not construction advice.
Contact
Questions: open an issue.