SecurityStack

Give your AI agent the ability to secure its own environment — one MCP config, six tools.

Audit MCP configs for poisoning, redact secrets/PII before they leave for an LLM, vet untrusted skills, monitor dependency health, and actively scan your network. All from a single securitystack entry in your agent's MCP config.

This is the client: the unified MCP server an AI agent (Claude CLI/Desktop, or any MCP-aware agent) installs to call the SecurityStack hosted services. The backend services themselves are hosted — you don't run them. You configure API keys and your agent gets six security tools.

Why

An AI agent has four ways to get compromised. SecurityStack covers all four:

1. What it INSTALLS   → poisoned skills / MCP configs     → scan_skill + audit_mcp_server_config
2. What it DEPENDS ON → a dependency goes down/rogue        → check_dependencies
3. Where it's EXPOSED → open ports, default creds           → network_scan (with AI agent loop)
4. What it SENDS OUT  → secrets/PII leak into the LLM       → scan_secrets

Two of these — audit_mcp_server_config and scan_secrets — run offline, in-process, with no API key. They work the moment you install the server. The other four call hosted services (configure their keys to enable them; each is skipped gracefully if unset).

Install

1. Install the server

pip install securitystack-mcp

That's it — the package is on PyPI.

2. Add it to your agent

For Claude Desktop / CLI (claude_desktop_config.json or ~/.claude.json):

{
  "mcpServers": {
    "securitystack": {
      "command": "python",
      "args": ["-m", "stack.unified_mcp_server"],
      "env": {
        "ACTIVESCANNER_API_KEY": "ask_live_...",
        "DEPSCAN_API_KEY": "dsk_live_...",
        "SECURITYSCAN_API_KEY": "ss_live_...",
        "SECRETSCAN_API_KEY": "ssc_..."
      }
    }
  }
}

The two offline tools (audit_mcp_server_config, scan_secrets) need no key and work immediately. The four hosted-service tools activate when you set their key; set only what you use.

Get a free API key (no credit card):

curl -X POST https://scan.apisecurityscan.net/v1/register -d '{}'

See docs/QUICKSTART.md for the 2-minute setup.

3. Verify

claude mcp list
# securitystack ... Connected

Then ask your agent: "Audit my MCP config for security risks" or "Scan this prompt for secrets before I send it: ..."

The six tools

Tool	What it does	Needs a key?
audit_mcp_server_config	Audits an MCP config for tool poisoning, leaked credentials, supply-chain risk, toxic capability pairs (OWASP MCP Top 10).	No — runs offline
scan_secrets	Detects & redacts secrets (API keys, tokens, private keys) + PII (email, phone, SSN, credit card, IBAN) in a payload before it leaves for an LLM/API. Runs offline in-process with no key; routes to the backend if a key is set.	No — runs offline
scan_skill	Analyzes an untrusted AI skill for prompt injection, malware patterns, OWASP LLM Top 10 — before you install it.	SECURITYSCAN_API_KEY
check_dependencies	Checks the health (uptime, SSL, blacklist, trust score) of endpoints your agent depends on.	DEPSCAN_API_KEY
network_scan	Active security scan of a device/host with an autonomous AI agent that reasons about findings. Requires authorized: true — only scan what you own.	ACTIVESCANNER_API_KEY
full_stack_audit	All of the above correlated into one prioritized report.	per-tool keys

Authorization & legality

network_scan performs active scanning. You must set authorized: true to certify you own or have permission to scan the target. Scanning without authorization may violate the CFAA (US), the Computer Misuse Act (UK), and similar laws. See the Terms of Service.

License

Apache-2.0. See LICENSE.