Webots MCP (MHasaan/webotMCP) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 156 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
74/100

Webots MCP

Full-access MCP server for the Webots robot simulator that enables AI assistants to see, understand, and modify a running simulation, including scene-tree inspection/editing, robot control, viewport screenshots, and arbitrary code execution.

→ MHasaan/webotMCP· 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

⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

MHasaan

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

⚡ Connect GitHub for Live Monitored

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
⚠️
Tool descriptions don’t match what handlers do
2 tools describe read intent but their handlers mutate — launch_webots (line 121: proc = subprocess.Popen(args, env=env, stdout=subprocess.PIPE,); save_scenario (line 88: with open(path, "w", encoding="utf-8") as fh:)
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
// 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.
configWEBOTS_MCP_HOST
configWEBOTS_MCP_PORTPorts are configurable: (default 10022) and
configWEBOTS_HOMEThe Webots installation is auto-detected ( env var → Windows registry →
configWEBOTS_MCP_AGENT_PORT(default 10023).
configWEBOTS_VERSION
configProgramFiles
// 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

156/156 tools missing one or more hints — launch_webots (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); is_webots_running (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); quit_webots (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +153 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.

Descriptions match behaviour

2 tools describe read intent but their handlers mutate — launch_webots (line 121: proc = subprocess.Popen(args, env=env, stdout=subprocess.PIPE,); save_scenario (line 88: with open(path, "w", encoding="utf-8") as fh:)

Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tool description accuracy

launch_webots: description implies read-only but handler writes/deletes/executes; save_scenario: description implies read-only but handler writes/deletes/executes

Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.

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.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/mhasaan/webotmcp?variant=verified)](https://m8ven.ai/mcp/mhasaan/webotmcp)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 18301bd87bf208a622dcad1119b0a9d3ac5e63c9
code hash: a6c55a7f18d5fcf0807ee820c03c6b0ab0a8e28420bab92e9162ae746f1c1aef
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client