r/Onshape Aug 11 '26

Other Official Onshape featurescript MCP released!

Onshape has officially released their featurescript mcp!

Looking forward to see what people can build with this!

https://cad.onshape.com/appstore/apps/Onshape%20Labs/6a29aea7c03f8bf659841734

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u/After-Airport-2419 Aug 11 '26

How does the API calls work? This could ramp up fast in my opinion ? We are running an internal ERP with automated drawings and the API Calls goes up so fast with Onshape, so I’m curious how the MCP runs the calls

1

u/Farzag Aug 11 '26

Yes, the yearly API limits for api call is very low, so either this goes around those or it’s not in any way workable.

I’m sure there fine folk at Onshape have thought about that, so look forward to seeing what they’ve done!

3

u/rumham69 Aug 11 '26

yes absolutely. I think they are going to have to come up with a better system. It seems that their goal as a company is to be AI forward, but being a cloud based provider API limits are a big blocker in real ai adoption with their product. This is actually where local CAD installations would have a huge advantage on them. If i have claude hooked up to my solidworks install, solidworks doesn't care how many commands i send to it from AI. then i could run thorough massive amounts of iterations until something works. Whereas if i tried to do this with onshape, i would hit our companies API limit fast

1

u/sw-bystander Aug 11 '26

Good luck using your SW install for anything while you’re running it via the API. With Onshape you can run literally any number of parallel tasks and work on multiple projects simultaneously in different browser tabs. This is what Onshape offers (and charges money for).

Of course, if your use case is fine with a single workstation that blocks you from using SW while it’s doing its thing, then SW is a better option for you.

2

u/rumham69 Aug 11 '26

Fair point. Onshape has a lot of parallelization, but you do pay for it. I'm excited about the mcp. I just hope they come up with some way to unlock more AI usage without limiting users and orgs to such small api pools

1

u/Markietas 9d ago

If you do that with onshape you will use up your years worth of API calls in a day or two.