Archlang MCP

An open-source (MIT) DSL for floor plans that compiles .arch source to SVG/DXF/PDF with linting and geometric validation - diffable, reproducible, and LLM-writable. Text in, a precise architectural drawing out: deterministic, zero-dependency, and built so an AI agent can verify its own plan without ever looking at an image. It runs locally over stdio via the published package.

People who work with agentic ai, architecture and cad and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-14 · ★ 10 · #38 OF 168 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-09-18

MIT · TypeScript servers · how we verify → /methodology

01 · Install Archlang MCP

Claude Code

claude mcp add chanmeng666-archlang -- npx -y @chanmeng666/archlang-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "chanmeng666-archlang": {
      "command": "npx",
      "args": [
        "-y",
        "@chanmeng666/archlang-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @chanmeng666/archlang-mcp - published under the repo owner's npm scope (@chanmeng666)

registry namespace io.github.ChanMeng666 is GitHub-verified and matches the repo owner

03 · What Archlang MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.36.0 · 2026-09-13

Added - a compiled plan you can reach with a keyboard (annotate + accessible) · An embedder that wants a keyboard- and screen-reader-operable plan has had to decide, per · element and from the outside, which of its…

v1.35.0 · 2026-09-04

The third dimension, added twice - once as a number nothing draws, once as a picture nothing · measures. A floor plan is a horizontal cut, and until now that cut was all ArchLang had: a wall · carried a thickness and…

v1.34.0 · 2026-09-04

What the gates could not see. Every item here is a check that was running, green, and · blind - or one that did not exist. The circulation model had no gate that was not relative to · itself. The sheet fit rule…

04 · Who maintains Archlang MCP

archlang-mcp is maintained by chanmeng666. We track 2 MCP servers from chanmeng666 - 2 actively maintained, 11 combined GitHub stars, oldest repo from Jan 2025.

05 · Facts

repository: github.com/chanmeng666/archlang
website: https://archlang.uk/
category: developer tools - ranked #38 of 168 actively-maintained developer tools servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-13)
registry: io.github.ChanMeng666/archlang-mcp (active, first published 2026-07-10 · 18 versions)
packages: npm:@chanmeng666/archlang-mcp

06 · Archlang MCP FAQ

What is Archlang MCP?

Is Archlang MCP still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-14 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Archlang MCP?

Run `npx -y @chanmeng666/archlang-mcp`. You can also paste the ready-made client config above.

Does Archlang MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Archlang MCP

Alternatives to Archlang MCP

Maintained developer tools servers if Archlang MCP isn't the fit.

Pairs well with

Servers that cover what Archlang MCP doesn't - only shown when the pairing reason fits the companion.

More developer tools MCP servers · Snowfakery MCP · Configcat MCP Server · Orcareplay · ToolPipe MCP Server

More TypeScript MCP servers · Channel3 Shopping · Posokanei MCP · Ennodia · Vault MCP · Funnel · see all