Aegis vs ToolTrust Scanner

A side-by-side look at the Aegis and ToolTrust Scanner MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Aegis logoAegisSecurity · Local subprocess (stdio)Credential isolation proxy for AI agents. Injects secrets at the network boundary with domain restrictions, agent authentication, and audit logging. No SDK required — works as a transparent HTTP proxy or MCP server.53GoodAuth: not declaredToolTrust Scanner logoToolTrust ScannerSecurity · Local subprocess (stdio)Scans MCP servers for prompt injection, data exfiltration, and privilege escalation.57GoodAuth: not declared

Verdict: choose Aegis for security work as a local process; choose ToolTrust Scanner for security as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Aegis logoChoose Aegis when

  • You need dedicated capabilities in the Security domain.
  • You prefer a local stdio subprocess transport.
Explore Aegis

ToolTrust Scanner logoChoose ToolTrust Scanner when

  • You need dedicated capabilities in the Security domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like tooltrust_scan_config, tooltrust_scan_server, tooltrust_scanner_scan.
Explore ToolTrust Scanner

Feature & specification comparison

Rows where the two servers differ are marked.

SpecAegis logoAegisToolTrust Scanner logoToolTrust Scanner
CategorySecuritySecurity
Quality signal53/100 · Good57/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars1419
Directory activity 2 views 0 installs 0 upvotes 2 views 0 installs 0 upvotes
ToolsNot listed5

Tools & capabilities

Aegis tools

No tool names declared yet. Check the project README from the listing page.

ToolTrust Scanner tools 5

  • 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

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Aegis

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "getaegis-aegis": {
      "command": "npx",
      "args": [
        "-y",
        "@getaegis/cli"
      ]
    }
  }
}

ToolTrust Scanner

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "tooltrust-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "tooltrust-mcp"
      ]
    }
  }
}

Frequently asked questions

Aegis is categorized under Security and uses a local stdio subprocess. ToolTrust Scanner belongs to Security and uses a local stdio subprocess. Pick Aegis for security work and ToolTrust Scanner for security.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Aegis has no declared pricing — check the project's own site. ToolTrust Scanner has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add getaegis-aegis and tooltrust-scanner as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Aegis has a quality signal of 53/100 (Good) with 2 views, 0 installs and 14 GitHub stars. ToolTrust Scanner has 57/100 (Good) with 2 views, 0 installs and 19 GitHub stars.