ToolTrust Scanner MCP Server

Scans MCP servers for prompt injection, data exfiltration, and privilege escalation.

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What is the ToolTrust Scanner MCP server?

ToolTrust Scanner MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. Scans MCP servers for prompt injection, data exfiltration, and privilege escalation.

What you get

Static security scanner for MCP tool definitions

What the assistant can call

Once ToolTrust Scanner is connected, these are the calls the assistant has available:

  • tooltrust_scan_config — Scan all MCP servers in your .mcp.json or ~/.claude.json
  • tooltrust_scan_server — Launch and scan a specific MCP server by command
  • tooltrust_scanner_scan — Scan a raw JSON blob of tool definitions
  • tooltrust_lookup — Look up a server's trust grade from the ToolTrust Directory
  • tooltrust_list_rules — List all built-in security rules

Setting it up

Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.

Choosing this one

Among the file and storage access options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. ToolTrust Scanner's toolset — tooltrust_scan_config, tooltrust_scan_server, tooltrust_scanner_scan and 2 more — is a fair guide to whether it matches your workflow. It is maintained by AgentSafe-AI; worth a glance at recent repository activity before you build anything load-bearing on it.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Before you rely on it

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the tooltrust scanner mcp server does with a few real requests.

Available tools

ToolWhat it does
tooltrust_scan_configScan all MCP servers in your .mcp.json or ~/.claude.json
tooltrust_scan_serverLaunch and scan a specific MCP server by command
tooltrust_scanner_scanScan a raw JSON blob of tool definitions
tooltrust_lookupLook up a server's trust grade from the ToolTrust Directory
tooltrust_list_rulesList all built-in security rules

How to install the ToolTrust Scanner MCP server

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

Configuration as documented by the project. Restart the client after saving.

Example prompts to try

  • Use ToolTrust Scanner to tooltrust scan config.
  • Use ToolTrust Scanner to tooltrust scan server.
  • Use ToolTrust Scanner to tooltrust scanner scan.

Frequently asked questions

It connects ToolTrust Scanner to MCP-compatible AI assistants such as Claude and Cursor, exposing 5 tools (tooltrust_scan_config, tooltrust_scan_server, tooltrust_scanner_scan, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with ToolTrust Scanner directly.