VNC MCP Server (volkan-m/vnc-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 70 out of 100, grade C. It declares 21 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
70/100

VNC MCP Server

Empowers AI agents to see, reason, and control computers via VNC, providing advanced vision features like OCR and image search, human-like input control, and optional SSH remote command execution.

→ volkan-m/vnc-mcp-server· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

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Who stands behind it

volkan-m

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Known vulnerabilities in dependencies: 2 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 1 credential: VNC_PASSWORD
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes21 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

vnc_connect

Connect to a VNC server

vnc_disconnect

Disconnect from the VNC server

vnc_screenshot

Capture a screenshot

vnc_ocr_region

Extract text from a specific region using OCR

vnc_find_image

Find a template image on the screen

vnc_mouse_move

Move the mouse

vnc_mouse_click

Click the mouse

vnc_mouse_double_click

Double click the mouse

vnc_mouse_scroll

Scroll the mouse

vnc_mouse_drag

Perform a drag and drop

vnc_get_pixel_color

Get the color of a pixel

vnc_wait_for_change

Wait until a region changes

vnc_get_screen_info

Get screen resolution and OS hint

vnc_get_connection_health

Get connection health metrics

vnc_key_tap

Tap a key (e.g., 'Enter', 'C-c')

vnc_type_string

Type a string

vnc_set_clipboard

Set the remote clipboard

vnc_system_command

Execute a shell command in the background on the server

vnc_get_clipboard

Get the last captured clipboard text

vnc_execute_sequence

Execute a sequence of input actions (move, click, type, key, wait) in a single call for higher speed

vnc_launch_gui_app

Launch a GUI application on the remote desktop (Linux focus)

// known CVEs in dependencies2 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.0.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highsharp@0.33.2GHSA-f88m-g3jw-g9cj

sharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591

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// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configLINUX_ALLOWED_COMMANDS
configLINUX_DENIED_COMMANDSBlocked Linux commands rm -rf,rm -f,shred,mkfs,:(){ ::& };:
configMAC_ALLOWED_COMMANDS
configMAC_DENIED_COMMANDSBlocked macOS commands rm -rf,rm -f
configVNC_HOST"": "localhost",
🔐 secretVNC_PASSWORDe =vncpass \
configVNC_PORT"": "5901",
configWIN_ALLOWED_COMMANDS
configWIN_DENIED_COMMANDSBlocked Windows commands del,format,rd,sfc,attrib
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

21/21 tools missing one or more hints — vnc_connect (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); vnc_disconnect (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); vnc_screenshot (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +18 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tests exist

No test files found

Add tests that exercise each declared tool.

Shell command execution

1 child_process call — runs shell commands

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

Production dependencies are patched

0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.0.1 (high), sharp@0.33.2 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dependency freshness

1/6 production deps stale: rfb2@2022-06-26 (4.1y)

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
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commit: 2c86f22d71f119e7c28ad9f92f5c6898cdc0b4e8
code hash: 03f3684e4555cd7590f2638a4f9d36efd02bd98624b95bdad5b2fa0036a028d7
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