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MCP Fortress vs MCP Tenant Isolation

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

MCP Fortress logoMCP FortressSecuritySecurity scanner for MCP servers with vulnerability detection and prompt injection analysis.29EmergingAuth: not declaredMCP Tenant Isolation logoMCP Tenant IsolationSecurity · Local subprocess (stdio)Static analysis scanner for MCP server code and multi-tenant SaaS applications.57GoodAuth: not declared

Verdict: choose MCP Fortress for security work; choose MCP Tenant Isolation for security as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

MCP Fortress logoChoose MCP Fortress when

  • You need dedicated capabilities in the Security domain.
Explore MCP Fortress

MCP Tenant Isolation logoChoose MCP Tenant Isolation when

  • You need dedicated capabilities in the Security domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like scan_tenant_isolation, list_tenant_isolation_rules, explain_tenant_isolation_rule.
Explore MCP Tenant Isolation

Feature & specification comparison

Rows where the two servers differ are marked.

SpecMCP Fortress logoMCP FortressMCP Tenant Isolation logoMCP Tenant Isolation
CategorySecuritySecurity
Quality signal29/100 · Emerging57/100 · Good
Install commandNot confirmed yetConfirmed
Transport—Local subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars44
Directory activity 3 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
ToolsNot listed4
Full listingView MCP Fortress View MCP Tenant Isolation

Tools & capabilities

MCP Fortress tools

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

MCP Tenant Isolation tools 4

  • scan_tenant_isolationScan a project path. Returns structured findings with completeness, coverage, concern families, and receipt.
  • list_tenant_isolation_rulesReturns all 57 rules with metadata. Filterable by category.
  • explain_tenant_isolation_ruleReturns rule details, OWASP mapping, CWE IDs, fix suggestions.
  • suppress_tenant_isolation_findingAdd a suppression with reason, approver, controls, and expiry.

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.

MCP Fortress

No confirmed install command for MCP Fortress yet — follow the setup steps linked from its listing page rather than a guessed package name.

MCP Tenant Isolation

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

Frequently asked questions

MCP Fortress is categorized under Security and uses an install path we have not confirmed yet. MCP Tenant Isolation belongs to Security and uses a local stdio subprocess. Pick MCP Fortress for security work and MCP Tenant Isolation 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. MCP Fortress has no confirmed install command yet — follow its own setup instructions.

MCP Fortress has no declared pricing — check the project's own site. MCP Tenant Isolation 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 mcp-fortress and mcp-tenant-isolation as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, MCP Fortress has a quality signal of 29/100 (Emerging) with 3 views, 0 installs and 4 GitHub stars. MCP Tenant Isolation has 57/100 (Good) with 0 views, 0 installs and 4 GitHub stars.

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