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SolidCraft GitHub points to tangency-labs/solidcraft: an open-source parametric 3D CAD app written in Rust. You sketch, constrain, extrude, and edit a feature timeline; change a parameter and the model rebuilds. The same command surface runs as a desktop app, in the browser, as a headless CLI, and as an MCP server so AI agents can model without clicking through dialogs.

Homepage: solidcraft.io. Docs: docs.solidcraft.io. License on the repo is MIT OR Apache-2.0 at your option (GitHub’s license API surfaces Apache-2.0 as the detected SPDX).

What the Project Ships

From the README and site (checked October 22, 2026, America/Los_Angeles):

  • Sketches and constraints with a parametric timeline (extrude, revolve, fillet, shell, patterns, and more listed in the repo docs).
  • Assemblies, joints, sheet-metal and enclosure features called out as available for early but usable simple parts.
  • Import / export paths including STEP, IGES, 3MF, STL, OBJ, glTF where supported, plus .solidcraft designs.
  • Desktop packages for Windows, macOS, and Linux (installer / DMG / AppImage, Snap, winget bherbruck.SolidCraft), plus a browser app at solidcraft.io/app.
  • AI agents via MCP: solidcraft-cli mcp (headless session, or --connect to a running UI). Claude Code example in the README: claude mcp add solidcraft -- solidcraft-cli mcp. Agent docs: docs.solidcraft.io/guide/mcp.html.

The site still advertised v0.12.0 on the homepage banner when checked; the GitHub latest release was v0.20.0 (published October 23, 2026 UTC). Prefer the Releases page for the current tag. Release notes for 0.20.0 warn that designs saved in format 31 do not open in 0.19.0 or older.

README status line: early but usable for simple parts; 75 of 76 public reference parts match analytic or FreeCAD-computed volume/area/CoM/bbox, with one tracked miss.

Stars and Position on AI Rank

Live GitHub API at write time: about 9,367 stars, 1,124 forks, language Rust, created 2026-10-07, latest push the same UTC day as this check. Topics include cad, parametric-cad, mcp, brep, wasm.

AI Rank’s open-source snapshot (last_crawled 2026-10-23) listed tangency-labs/solidcraft at rank 45 in Applications / Specialists with 9,088 stars, +489 stars (1d), +6,530 (7d), previous overall rank 30. Use the dated snapshot for ranking claims; GitHub’s live counter moves faster than the crawl.

→ Project ranking: tangency-labs/solidcraft on AI Rank — daily GitHub star growth

Independence and Contribution Rules

The project states it is independent and not affiliated with Autodesk, Dassault Systèmes, PTC, Siemens, Blender, or other CAD vendors; product names appear only for compatibility or format description (NOTICE). README points to clean-room contribution rules in AGENTS.md / CONTRIBUTING.md. Geometry work builds on the truck crates and related open libraries listed in NOTICE; SolidCore is described on the site as a Rust geometry kernel effort for SolidCraft.

AI features are optional: the product page says SolidCraft works without a connected assistant.

Practical Limits

  • Builds are described as not signed yet (Windows SmartScreen / macOS first-open workarounds in the README).
  • Roadmap and known limitations live in ROADMAP.md; slow fillets/booleans and kernel work are discussed in recent release notes.
  • Capability boundaries and known gaps are documented in the public README, ROADMAP.md, and release notes rather than in a signed support SLA.

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Prepared with automated editorial assistance and checked against the SolidCraft GitHub repository, solidcraft.io, docs.solidcraft.io, and dated AI Rank repo data on October 22, 2026 (America/Los_Angeles). We did not install or benchmark the software for this article.