Onshape FeatureScript MCP Server (PTC)
PTC's official MCP server in Onshape, launched August 13, 2026 via Onshape Labs, that connects coding LLMs to FeatureScript so engineers can build, test, debug and refine reusable custom CAD features from natural language descriptions.
What it does and how it connects
The FeatureScript MCP Server is PTC official MCP capability in Onshape, announced August 13, 2026 and available through the Onshape Labs initiative. It connects coding LLMs such as Claude, ChatGPT, and Gemini to FeatureScript, Onshape programming language for CAD automation, so engineers can create custom CAD features using natural language and AI.
Engineers describe the functionality they need, and the AI helps build, test, debug, and refine the custom feature in FeatureScript until it works as intended. PTC frames the value as text to code to CAD: proven design practices become reusable tools that can be shared across teams and reused without repeated prompting, ongoing AI interactions, or recurring AI costs.
FeatureScript itself lets companies capture engineering knowledge, automate repetitive design tasks, and create custom design tools tailored to their workflows. The announcement points to the Onshape App Store for access details. The capability is part of Onshape CAD and PDM platform, not a standalone download.
Alternatives
Compare side by side- onshape-mcp (hedless)
An open source MCP server with 45 tools for programmatic CAD modeling in Onshape over the REST API, rather than PTC official server for building FeatureScript features.
- fusion-cad-mcp
An open source typed MCP tool surface over Autodesk Fusion, rather than PTC official FeatureScript server for Onshape.
- inventor-mcp (NeonGlay)
An open source MCP server for parametric modeling in Autodesk Inventor, rather than PTC official FeatureScript server for Onshape.
- MecAgent
A commercial desktop copilot that acts inside an open SolidWorks session, rather than PTC official MCP server for Onshape FeatureScript.
- AnkusDrive
An open source CLI and MCP server that drives FreeCAD, rather than PTC official MCP server for Onshape FeatureScript.
Recurring errors it addresses
Error Index entries this tool is built to reduce or work around.
Sources
Not verified
- Pricing: none stated on the announcement page.
- Real user voices: no real linked post read for this page.
- A named individual builder beyond PTC.
- Repo stats: no public repo; this is a capability inside Onshape, not a standalone repository.
Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.