ToolCheck by M8ven
Rates how trustworthy an MCP tool or npm package is with a 0-100 score and verdict.
What ToolCheck by M8ven can do in ChatGPT
Check MCP tools before you trust them.
Trust Score
Get a 0 to 100 score for any GitHub repo or npm package.
Clear Verdict
See Trusted, Caution or Concern at a glance.
Sandbox Testing
Watches how the tool behaves when it actually runs.
CVE Scan
Looks for known security holes in the package.
Claim Vs Code
Flags tools whose code does more than they claim.
You stay in control
You approve access, and you can disconnect ToolCheck by M8ven at any time.
Apps 1
What ToolCheck by M8ven does in ChatGPT
The ToolCheck by M8ven plugin checks whether an MCP tool is safe to use before you install it. You give it a GitHub link or an npm package name, and it comes back with a trust score from 0 to 100 and a short verdict: Trusted, Caution or Concern.
The score draws on several checks. It reads the code itself, watches how the tool behaves when run in a sandbox, looks for known security holes (CVEs), and compares what the tool says it does with what its code can really do. That last check catches tools that claim to only read data but can do much more.
The listing gives the example of a tool described as read-only market data whose code can actually move money. ToolCheck is meant for spotting that kind of gap. The listing does not mention pricing or limits on how many tools you can check.
Who it is for
- Developers adding MCP servers to their setup
- Security teams vetting third-party tools
- AI users wary of what a tool can access
How to add ToolCheck by M8ven to ChatGPT
- Open the ToolCheck by M8ven listing in ChatGPT ↗.
- Click Install plugin.
- Sign in to your ToolCheck by M8ven account when asked and approve the access it requests.
- Start a chat and ask for what you need, mentioning ToolCheck by M8ven if ChatGPT does not pick it up.
- To stop, disconnect ToolCheck by M8ven under apps in your ChatGPT settings.
Questions about ToolCheck by M8ven
What is the ToolCheck by M8ven ChatGPT plugin?
The ToolCheck by M8ven plugin checks whether an MCP tool is safe to use before you install it. You give it a GitHub link or an npm package name, and it comes back with a trust score from 0 to 100 and a short verdict: Trusted, Caution or Concern. It is listed in ChatGPT's plugin marketplace under Security.
What can I ask ToolCheck by M8ven to do in ChatGPT?
For example: "Check this MCP server before I install it: github.com/example/mcp-tool", "What trust score does the npm package example-mcp get?", "Is this tool really read-only like it claims?".
Who makes the ToolCheck by M8ven plugin for ChatGPT?
The ChatGPT listing names M8ven Inc. as the developer. The version listed on 8 October 2026 was 1.0.0.
How do I add ToolCheck by M8ven to ChatGPT?
Open the ToolCheck by M8ven listing in ChatGPT, click Install plugin, sign in to your ToolCheck by M8ven account and approve the access it asks for. Then ask for what you need in a chat, mentioning ToolCheck by M8ven if ChatGPT does not pick it up.
Can ToolCheck by M8ven change things in my account, or only read?
It analyzes public GitHub repositories and npm packages you name. The listing does not describe access to your own accounts or files.
Who is the ToolCheck by M8ven plugin for?
Developers adding MCP servers to their setup, security teams vetting third-party tools and aI users wary of what a tool can access.
What do the ToolCheck verdicts mean?
Each tool gets a score from 0 to 100 and one of three verdicts: Trusted, Caution or Concern.
How does it decide the score?
It combines static code analysis, sandbox runtime observation, CVE scanning and a check of whether the tool's stated behavior matches its code.
Does ToolCheck by M8ven see my ChatGPT chats?
When ToolCheck by M8ven is connected, ChatGPT may share the parts of your chats and memories that matter for a request with ToolCheck by M8ven. What ToolCheck by M8ven does with that data falls under its own terms and privacy policy. ChatGPT keeps your training-data settings, and you can disconnect at any time.
How do I disconnect ToolCheck by M8ven from ChatGPT?
Open your ChatGPT settings, go to apps, and disconnect ToolCheck by M8ven. You can reconnect later from the listing.
What are alternatives to ToolCheck by M8ven in ChatGPT?
Similar plugins in the ChatGPT marketplace include Above Security, Ansvar Gateway and Bastion. Each has its own page in this directory.
Privacy and your data
When ToolCheck by M8ven is connected, ChatGPT may share the parts of your chats and memories that matter for a request with ToolCheck by M8ven. What ToolCheck by M8ven then does with that data falls under its own terms and privacy policy, not only OpenAI's. ChatGPT keeps your training-data settings for data that comes from connected apps, and you can disconnect at any time.
ToolCheck by M8ven privacy policy ↗ToolCheck by M8ven terms ↗OpenAI: apps in ChatGPT ↗