HardCopy Labs for ChatGPT
com.hardcopylabs/hardcopy
Order real 3D prints from chat: send an STL or OpenSCAD model, see one price, get it by UPS.
client:ChatGPT
transport:streamable-http
tools:3
Install HardCopy Labs in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.hardcopylabs.com/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs