Unity Open MCP Server

by alexeyperov

MCP server (stdio) routing tool calls to the live Unity Open MCP Bridge or batch Unity processes.

15Node.jsstdio

context tax

pending

security

97/100

cold start

pending

freshness

Active8d ago

Our reading of Unity Open, from the data

Unity Open is a gaming MCP server from alexeyperov.

We haven't measured its tool list yet, so its token cost is unknown.

Maintenance is active: the last public signal was 8 days ago (2026-10-10). For comparison, 73% of gaming servers are active or maintained.

With 15 GitHub stars it ranks #56 of 428 gaming servers we index.

It runs locally on your machine over stdio.

Install Unity Open MCP server

claude mcp add unity-open -- npx -y unity-open-mcp

{
  "mcpServers": {
    "unity-open": {
      "command": "npx",
      "args": [
        "-y",
        "unity-open-mcp"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "unity-open": {
      "command": "npx",
      "args": [
        "-y",
        "unity-open-mcp"
      ]
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "unity-open": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "unity-open-mcp"
      ]
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "unity-open": {
      "command": "npx",
      "args": [
        "-y",
        "unity-open-mcp"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Security signals

97/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Deductions

No security policy (SECURITY.md)-3

Checks

✓Repository hygiene (archived, activity, license, security policy)
○Package metadata (install scripts, provenance) — pending
○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
○Source scan (secrets, CVEs, risky code) by vectra-guard — pending

Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules

Freshness

Active — last maintenance signal 8d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-10 · 8d ago · GitHub
Latest release
2026-10-10 · 8d ago · GitHub · hub-v1.5.0
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry

How it compares in Gaming

Against the most-starred gaming servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Unity Open (this)	15	—	not measured	Active	local
Godot	6,152	—	not measured	Stale	local
Unity	4,494	—	not measured	Active	local
Unity	1,936	—	not measured	Active	—
Gearboy	1,219	—	not measured	Active	local
Unreal Engine	958	—	not measured	Active	local + hosted

All gaming MCP servers

FAQ

›How do I install the Unity Open MCP server in Claude Code?

Run: claude mcp add unity-open -- npx -y unity-open-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Unity Open require an API key?

No required environment variables are declared in its published metadata.

›Can I use Unity Open as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Unity Open in the official MCP registry?

No. It was indexed from npm.

Sources and method

GitHub repository: fetched 2026-10-19
Package registry (npm / PyPI): listed
Security signals, computed by us: 2026-10-19
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.