NSAuditor AI

NSAuditor AI is an on-premises network security audit platform for teams that need to inspect infrastructure without changing it. It is strongest for security-conscious organizations that can manage their own scanners and data; the free Community edition makes a basic starting point accessible, while advanced cloud and compliance auditing requires Enterprise.

Overview

NSAuditor AI combines network discovery with credentialed audits, but uses no scanning agents and asks only to read configuration and metadata. It does not require create, write, modify, or delete permissions, which makes it a good fit for cautious environments where granting operational access is a concern. The trade-off is deployment: it runs on customer infrastructure rather than as a hosted service.

Zero-data-exfiltration operation, air-gapped environments, and offline licensing support teams with strict data-control requirements. Every tier supports AI analysis through OpenAI, Claude, or Ollama, using customer-provided API keys. The MCP server connects with Claude Desktop, Claude Code, Cursor, and other compatible assistants. These integrations give AI-oriented teams options without requiring a single provider, though API access remains the customer's responsibility.

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. This can help teams focus on vulnerabilities with stronger threat signals while keeping matching offline; it also means teams need to maintain the intelligence data themselves.

Enterprise adds 28 auditors for AWS, GCP, and Azure, plus a zero-trust posture check scored from a network-host scan. For organizations that need cloud coverage from their own infrastructure, this is a substantial expansion over the entry tiers, but it is reserved for the highest-cost editions.

Enterprise 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. Compliance artifacts include SHA-256 chain-of-custody sidecars, with RFC 3161 trusted timestamps as an opt-in feature. Opt-in scan-time connectors for Vanta, Drata, and Secureframe are included, though production live-tenant validation is still in progress; organizations depending on those connectors should account for that qualification.

Reports can be exported in JSON, HTML, SARIF, CSV, Markdown, executive HTML, or Jira-importer CSV, depending on edition. The format range supports both technical workflows and executive reporting, but buyers should confirm which edition includes the outputs they need.

Pricing

The Community plan costs nothing, billed Forever. It includes 27 scanner plugins, MIT licensing, no restrictions, and no signup. This is the clearest fit for individuals or teams evaluating basic auditing without a recurring bill, but paid plans add threat prioritization and support.

Pro annual costs $39 a year, billed as $470/yr, and saves $118 versus monthly. It adds CVE matching, four parallel analysis agents, risk scoring, and a 48-hour email-support SLA. Pro monthly costs $49 a month, billed each month, with the same core features: CVE matching, risk scoring, and parallel analysis agents. The annual plan suits teams prepared to commit for lower stated overall cost; monthly billing offers flexibility at a higher rate. Pro is the practical step up for teams that need vulnerability context and email support without Enterprise cloud and compliance capabilities.

Enterprise Base costs $2,000 a year with annual invoicing and supports up to five seats or scanning nodes. Growth costs $5,000 a year for up to 25 seats or scanning nodes. Scale costs $10,000 a year with unlimited seats, a custom SLA, and custom plugins. Base suits smaller deployments that need Enterprise features; Growth raises the capacity ceiling, while Scale is for larger operations that need flexibility and tailored support. The price jump is substantial, so these plans make sense when cloud auditors, compliance mapping, or enterprise support justify it.

Community support is self-serve documentation and GitHub issues or discussions. Pro adds email support, while Enterprise tiers add onboarding, dedicated channels, or a dedicated support engineer. That progression matters for teams that need faster or more direct help than a community channel.

Platforms

NSAuditor AI supports Windows, macOS, and Linux, with on-premises deployment. That gives mixed-OS organizations options for hosting audits locally, but does not provide a cloud-hosted platform.

Who it's for

NSAuditor AI is best for infrastructure and security teams that want credentialed, agentless audits with read-only access and control over where scanning runs. Community fits a no-cost start; Pro is more compelling when CVE prioritization, risk scoring, and a defined email-support SLA matter. Enterprise is the right choice when cloud auditors, framework mapping, or dedicated support are requirements. It is a weaker fit for buyers seeking a hosted service or wanting Enterprise capabilities at a low price.

Pros and cons

• Pro: Read-only, agentless scans reduce the permissions and deployment footprint needed for audits.
• Pro: Air-gapped operation and offline licensing suit environments that restrict network access or data movement.
• Pro: AI analysis is available on every tier, with OpenAI, Claude, and Ollama options.
• Con: Cloud auditors and eight-framework compliance mapping require Enterprise, starting at $2,000 a year.
• Con: Pro's offline threat matching depends on customer-populated intelligence stores.
• Con: The Vanta, Drata, and Secureframe connectors have not completed production live-tenant validation.

Alternatives

Choose ManageEngine Vulnerability Manager Plus if its free edition or Professional on-premises plan better suits your budget or platform needs; it offers a free plan and a $695 a year Professional option.

OpenVAS is another free-plan option, with a community feed, limited enterprise features, and no default support in its free virtual appliance.

Choose Intruder if a free tier with five infrastructure targets, weekly external scans, and one connected cloud account fits your scale; web apps are excluded from that tier.

Nuclei is a free, MIT-licensed standalone CLI for readers looking for an open-source command-line tool.

OWASP Amass is a free, Apache License 2.0 open-source framework.

Choose Qualys External Attack Surface Management if a 30-day no-cost evaluation of its CyberSecurity Asset Management 3.0 with External Attack Surface Management is a better starting point.

ScanTitan offers a Professional plan at $119 a year for advanced vulnerability and exposure scanning, malware monitoring, and uptime monitoring.

Tripwire IP360 is another option for readers comparing vulnerability-scanning products.

Browse Network Vulnerability Scanners or Vulnerability Scanning Software for more options.

Verdict

NSAuditor AI is a strong choice for teams that prioritize local, read-only auditing and need to operate in air-gapped or tightly controlled environments. Its free Community plan and broad AI-provider support make it approachable, while Pro adds meaningful vulnerability prioritization. Look elsewhere if you need a hosted scanner or if cloud auditing and compliance are essential but Enterprise pricing is out of reach.