NSAuditor AI

NSAuditor AI is an on-premises platform for network security audits, with agentless scanning and optional AI analysis. It will suit teams that need tight control over scan data and permissions; its strongest cloud and compliance capabilities are reserved for Enterprise.

Overview

NSAuditor AI audits network configuration and metadata using read-only credentials. It does not require permission to create, write, modify, or delete resources, a useful safeguard for teams reluctant to grant an auditing tool broader access. The trade-off is deployment: it runs on the customer’s infrastructure rather than as a hosted service.

Zero-data-exfiltration operation, air-gapped environments, and offline licensing make it a practical candidate for restricted networks. AI analysis is available across all tiers through OpenAI, Claude, or Ollama, using customer-provided API keys. Its MCP server works with Claude Desktop, Claude Code, Cursor, and other MCP-compatible assistants. These options support AI-assisted workflows, but require customers to choose and supply their own provider credentials.

Key features

Community includes 27 scanner plugins and is MIT licensed. Pro adds offline NVD CVE matching and exploit-first prioritization using CISA KEV and FIRST EPSS data from customer-populated stores. That gives teams threat-context signals for prioritizing findings without relying on an online intelligence feed; they must maintain the underlying stores themselves.

Enterprise adds 28 auditors for AWS, GCP, and Azure, plus a zero-trust posture check scored from a network-host scan. It also maps one scan to eight frameworks: SOC 2, HIPAA, NIST CSF 2.0, PCI DSS v4.0.1, ISO/IEC 27001:2022, CIS Controls v8, GDPR Article 32, and NIST SP 800-171 Rev 2. This breadth can reduce repeated mapping work for organizations with multiple compliance obligations, but it is a costly step up from Pro.

Reports can be exported as JSON, HTML, SARIF, CSV, Markdown, executive HTML, or Jira-importer CSV, depending on edition. Compliance artifacts include SHA-256 chain-of-custody sidecars, with RFC 3161 trusted timestamps available as an opt-in feature. Enterprise also has opt-in scan-time connectors for Vanta, Drata, and Secureframe; production live-tenant validation is still in progress, so teams should not treat those connectors as validated production integrations.

Pricing

Community costs nothing, billed Forever. It includes 27 scanner plugins, is MIT licensed, has no restrictions, and requires no signup. This is a strong starting point for individual users or teams assessing the core audit workflow, but it does not include Pro’s CVE matching, risk scoring, parallel analysis agents, or 48hr email-support SLA.

Pro (annual) is $39 a year, billed as $470/yr, and saves $118 vs monthly. It adds CVE matching, four parallel analysis agents, risk scoring, and a 48hr email-support SLA. Pro (monthly) is $49 a month, billed each month, with the same core Pro features: CVE matching, risk scoring, and parallel analysis agents. Monthly billing offers flexibility, while annual billing lowers the stated cost for a full-year commitment.

Enterprise Base costs $2,000 a year with annual invoicing and supports up to five seats or scanning nodes. Enterprise Growth costs $5,000 a year, also with annual invoicing, and raises that cap to 25 seats or scanning nodes. Enterprise Scale costs $10,000 a year with annual invoicing and offers unlimited seats, a custom SLA, and custom plugins. These tiers are for organizations that need the cloud auditors and eight-framework mapping; the seat and node caps matter when sizing Base or Growth. Enterprise support adds onboarding, dedicated channels, or a dedicated support engineer, depending on tier.

Platforms

NSAuditor AI supports Linux, macOS, and Windows. It is on-premises software with credentialed, agentless scanning and network discovery, so it fits teams able to operate audits from their own infrastructure rather than those seeking a managed cloud scanner.

Who it's for

The best fit is an infrastructure or security team that needs read-only audits, offline or air-gapped operation, and control over where scan activity runs. Pro makes more sense when threat-informed prioritization and support response matter. Enterprise is the relevant choice for multi-cloud auditing and compliance mapping across the named frameworks. Teams wanting a hosted service, or only a narrow scanning function, may find the deployment model or Enterprise price harder to justify.

Pros and cons

• Pros: Read-only, agentless scanning avoids write permissions and agent deployment, simplifying audits where access and change control are strict.
• Pros: Offline operation, air-gap support, and offline licensing suit environments that cannot rely on routine external connectivity.
• Pros: All tiers can use OpenAI, Claude, or Ollama for AI analysis, with an MCP server for compatible assistants.
• Pros: Enterprise maps one scan to eight frameworks and adds AWS, GCP, and Azure auditors, covering several needs in one tier.
• Cons: Pro’s threat-intelligence matching depends on customer-populated data stores, adding upkeep to the offline approach.
• Cons: Cloud auditors and framework mapping require Enterprise, starting at $2,000 a year.
• Cons: The opt-in Vanta, Drata, and Secureframe connectors are still undergoing production live-tenant validation.

Alternatives

Consider Intruder if you want a freemium scanner with a free tier that includes five infrastructure targets, weekly external scans, and one connected cloud account; its free plan excludes web apps.

ManageEngine Vulnerability Manager Plus is another freemium option, with a free edition and a Professional on-premises plan, for readers comparing a separate vulnerability-management product. OpenVAS offers a free virtual appliance with a community feed and limited enterprise features, making it an alternative for those who prefer that model and can work without default support.

For a free, standalone CLI, Nuclei is an option; OWASP Amass is a free open-source framework. Qualys External Attack Surface Management offers a 30-day no-cost period for CSAM with EASM, while Pentest-Tools Port Scanner includes open ports and services discovery in its free tier.

Browse more options in Network Vulnerability Scanners and Vulnerability Scanning Software.

Verdict

NSAuditor AI is a good fit for teams that need locally run, read-only network audits and value offline operation. Its core case is disciplined access and data control, with optional AI analysis across every tier. Look elsewhere if you need hosted scanning, or if cloud coverage and compliance mapping are essential but Enterprise pricing is beyond reach.