Qualys MCP Server

⚠️ Unofficial project. This is a personal project to showcase the viability of connecting AI assistants to Qualys via the Model Context Protocol. It is not affiliated with, endorsed by, or supported by Qualys, Inc.

An MCP server that connects AI assistants to Qualys security data. 7 workflow tools covering vulnerability management, cloud security, containers, compliance, remediation, and more. Pure Python, zero config beyond credentials.

📖 Full documentation →

Setup

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "qualys": {
      "command": "uvx",
      "args": ["qualys-mcp"],
      "env": {
        "QUALYS_USERNAME": "your-username",
        "QUALYS_PASSWORD": "your-password",
        "QUALYS_POD": "US2"
      }
    }
  }
}

Set QUALYS_POD to your platform POD — the server derives the correct API and gateway URLs automatically.

Supported pods: US1 US2 US3 US4 EU1 EU2 EU3 IN1 CA1 AE1 UK1 AU1 KSA1

Advanced: If you need to override the auto-derived URLs, set QUALYS_BASE_URL and QUALYS_GATEWAY_URL explicitly instead of QUALYS_POD. Explicit URLs take priority.

Requires uv: brew install uv or curl -LsSf https://astral.sh/uv/install.sh | sh

Alternative

pip install qualys-mcp
qualys-mcp

Self-Signed Certificates

For environments with self-signed certs, add "QUALYS_SSL_VERIFY": "false" to the env block.

Tools

7 workflow tools that intelligently dispatch to 42 internal aggregators across all Qualys modules. Each tool handles routing, concurrent API calls, cross-domain correlation, and response synthesis automatically.

Key Parameters

investigate

• target — CVE ID, threat actor, hostname, IP, or free-text topic
• depth — quick (~10s) / standard (~20s) / deep (~45s)
• scope — all / vulns / threats / assets / edr / fim

assess_risk

• scope — all / cloud / containers / web / certs / assets
• tag / asset_group — filter by business group
• provider — aws / azure / gcp (cloud scope)
• asset_id — single asset deep-dive

check_compliance

• framework — PCI / HIPAA / CIS / NIST / SOC2
• include_exceptions — include risk acceptances

plan_remediation

• scope — all / patches / mitigations / program
• severity — critical / high / moderate
• cves / qids — check mitigation coverage for specific vulns

security_overview

• period — today / week / month
• quick — fast snapshot (~2s) vs full briefing

Example Conversations

Daily Operations

"Give me a security overview"                  → security_overview(quick=True)
"What happened this week?"                     → security_overview(period="week")
"What should we patch first?"                  → plan_remediation(scope="patches", severity="critical")
"How's our compliance?"                        → check_compliance()

Investigation

"Tell me about CVE-2024-3400"                  → investigate(target="CVE-2024-3400")
"Are we exposed to ransomware?"                → investigate(target="ransomware")
"What do we know about Iranian threats?"        → investigate(target="iran")
"Investigate this host: 10.0.0.1"              → investigate(target="10.0.0.1", scope="edr")

Risk Assessment

"What's our overall risk?"                     → assess_risk(scope="all")
"How's our cloud security?"                    → assess_risk(scope="cloud")
"Any container vulnerabilities?"               → assess_risk(scope="containers")
"Web app security status?"                     → assess_risk(scope="web")
"Show me risk for Production assets"           → assess_risk(tag="Production")

Compliance & Remediation

"Are we PCI compliant?"                        → check_compliance(framework="PCI")
"What's our patch coverage?"                   → plan_remediation(scope="patches")
"Is there a mitigation for CVE-2024-3400?"     → plan_remediation(cves=["CVE-2024-3400"])
"What security gaps do we have?"               → plan_remediation(scope="program")

Multi-Step Workflows

"New critical CVE dropped — what do I need to know?"
→ investigate(target="CVE-...") → plan_remediation(cves=["CVE-..."]) → check_compliance()

"Prepare me for the weekly security standup"
→ security_overview(period="week") → assess_risk(scope="all") → plan_remediation(scope="patches")

"PCI audit prep"
→ check_compliance(framework="PCI", include_exceptions=True) → assess_risk(scope="all") → plan_remediation()

Architecture

AI Assistant → qualys_mcp.py (7 tools) → workflows/ (dispatch + synthesis) → aggregators.py (42 functions) → api.py (HTTP + caching) → Qualys APIs

Each workflow tool:

1. Builds a dispatch plan based on parameters
2. Runs selected aggregators concurrently
3. Merges results into a unified response envelope
4. Applies cross-domain correlation
5. Returns prioritized findings and recommended actions

Performance

Tested on an 89,000-asset environment (US2 POD):

Cold start: The first query after launching takes 2-10s longer while the bearer token is acquired and caches warm up. A background thread pre-fetches VMDR detections on startup. After the first query, responses are significantly faster. Ask security_overview(quick=True) first to warm caches.

Eval Harness

300 routing test questions + 900 variants + 30 multi-turn conversation workflows for automated evaluation.

# Install eval dependencies
pip install anthropic mcp python-dotenv pyyaml

# Run eval
python -m eval --quick

Testing

# Unit tests (282 tests)
pip install pytest
pytest tests/ --ignore=tests/conversations -q

# Smoke test
bash test_tools.sh fast

Qualys PODs

License

MIT - Copyright (c) 2026 Andrew Nelson