Onshape-Lunaparts-Coallition (1piemanpie)MCADConfidence: Medium

The team's parts panel got stuck on "Loading parts" with a 402. Onshape gives apps outside its App Store a yearly API call budget, 2,500 on Free and EDU plans per the linked Onshape docs, and the panel spent two calls per part on every open. The fix fetches on hover, caches for 12 hours, and cuts calls per Part Studio open from 28 to 8. Anyone building agents on top of CAD APIs hits this kind of quota.

Impact Analysis

Persona

Mechanical Designer

Team Size Impact

5x Multiplier

Prototype Delay

3 Days

Est. Annual Cost

$30,000

1 user · 1 month240 min
Rest of team960 min
Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources

1piemanpie/Onshape-Lunaparts-Coallition PR #40: Use far fewer Onshape API calls; clear message when the yearly limit is hit

github.com

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Analyst Notes

From the Grok pain-radar digests, Nov 2 2026 (Nov 2 8:41 AM ET through Nov 2 10:41 PM ET digests plus the Haitch editions). Verified live 2026-11-03: issue/PR read; title and state confirmed.