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CarMaker

io.github.dimitr-io/carmaker-mcpv0.2.2Cloud Storage

Drive IPG CarMaker for Simulink: run test runs, read results, edit vehicle data and parameters.

The current version, v0.2.2, was published to the official MCP registry on 2026-10-19. It is distributed as carmaker-mcp on PyPI, filed under Cloud Storage by this index, and declares 6 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using CarMaker in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire
Auditable install path →Watch it hold a drift →
Trust verdict · v1 advisory · method
NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands. The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Test a description on the public screen → It is a separate check from the verdict above, so the two can differ.

That verdict was true at screening time (snapshot 2026-10-19).

Contracts can change after screening, with no version bump. The gate pins CarMaker’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Related: how to trust an MCP server · screen before install · silent contract drift

Environment variables
CM_PROJECT
required

CarMaker project folder. All writes are confined to it.

CM_MODEL

Simulink model that cm_session_start opens (name on the MATLAB path, or a file).

CM_MATLAB_SESSION

Name under which MATLAB shares its engine.

CM_POPUP_TIMEOUT

Seconds after which CarMaker GUI pop-ups answer themselves with their default choice. Not set: they wait for a click.

CM_ENABLE

Optional tools, comma separated: tcl (raw Tcl in the GUI), experimental (Simulink structure edits).

CM_DISABLE

Tool groups to switch off, comma separated: standalone, study, matlab.

MCP quality score · maturity, not trust · methodology
freshness
25
completeness
15
installability
25
documentation
15
stability
5
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