ChatGPT calc.engineer Resource/catalog
How to: ChatGPT calc.engineer catalog
Add calc.engineer to ChatGPT
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01
Open Settings → Connectors → Advanced → Developer mode and merge this in. Keep any servers already there.
https://calc.engineer/mcp-
02
Save the file and restart ChatGPT.
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03
catalog is surfaced wherever your client lets you attach context. It is context to attach, not an action to run.
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04
If it does not appear, check that calc.engineer is connected and that you are looking at its resources rather than its tools.
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs
Same resource, other clients
Read from the server itself, by connecting to it and calling resources/list on 24 September 2026.
A listing does not declare its resources, so asking is the only way to know them, and this
is what the server actually offers rather than what its listing claims. Names only are
stored; connect the server for each resource's type and contents.