NSAuditor AI

NSAuditor AI is an open-core network security audit platform that runs agentless, read-only, and on the customer's infrastructure. It reads configuration and metadata without requiring permission to create, write, modify, or delete data. The platform supports Windows, macOS, and Linux, as well as air-gapped environments, offline licensing, and zero-data-exfiltration operation. All tiers can use OpenAI, Claude, or Ollama for AI analysis with customer-provided API keys. Depending on edition, reports can be exported in formats such as JSON, HTML, SARIF, CSV, and Markdown. Community is free. Pro is listed at $49 per month or $470 per year; Pro adds offline NVD CVE matching and prioritization using customer-populated CISA KEV and FIRST EPSS data. Enterprise plans start at $2,000 per year and include 28 cloud auditors across AWS, GCP, and Azure. Enterprise maps a scan to eight compliance frameworks, including SOC 2, HIPAA, PCI DSS v4.0.1, GDPR Article 32, and ISO/IEC 27001:2022. Support ranges from self-serve documentation and community forums to email and dedicated options on higher tiers.

NSAuditor AI emphasizes read-only auditing on customer infrastructure, with AI analysis available across tiers. Community is a free entry point; cloud auditor coverage and compliance mapping are Enterprise features.

It suits organizations that need network audits on their own infrastructure, including air-gapped environments. Enterprise features are aimed at teams needing cloud audits and framework mapping.

NSAuditor AI is an on-premises platform for agentless network security audits, aimed at teams that need scans to stay read-only and on their own infrastructure. Its free Community edition is a useful starting point; the strongest cloud-auditing and compliance capabilities are reserved for Enterprise.

Overview

NSAuditor AI combines network discovery with credentialed scans that read configuration and metadata without needing create, write, modify, or delete permissions. That narrow access model is a practical advantage for infrastructure teams wary of scan tools changing systems. It is an on-premises product, however, so it will not suit buyers looking for a hosted service.

The product supports zero-data-exfiltration operation, air-gapped environments, and offline licensing. AI analysis is available across tiers through OpenAI, Claude, or Ollama, using customer-provided API keys. An MCP server works with Claude Desktop, Claude Code, Cursor, and other MCP-compatible assistants, which gives teams a way to connect analysis to familiar tools while keeping the choice of provider and API key in their hands.

Reports can be exported in formats including JSON, HTML, SARIF, CSV, and Markdown, with executive HTML and Jira-importer CSV also available depending on edition. Compliance artifacts include SHA-256 chain-of-custody sidecars; RFC 3161 trusted timestamps are an opt-in feature. Those options make the product relevant to teams that need portable findings or traceable evidence, though the available formats vary by edition.

Key features

Community provides 27 scanner plugins under the MIT license. Pro adds offline NVD CVE matching and exploit-first prioritization using CISA KEV and FIRST EPSS data from customer-populated stores. That approach can help security teams rank findings by exploit context without depending on a live intelligence feed, but maintaining the local data stores is part of the job.

Enterprise adds 28 cloud auditors spanning 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. These capabilities give organizations with cloud estates or several compliance obligations a reason to consider Enterprise; they are not part of the lower tiers.

Enterprise includes opt-in scan-time connectors for Vanta, Drata, and Secureframe. Production live-tenant validation is still in progress, so buyers who depend on those connectors should account for that status. The product also supports Linux, macOS, and Windows, giving teams a choice of operating system for deployment.

Pricing

Community costs nothing, billed Forever. It includes 27 scanner plugins, carries no restrictions, and requires no signup. That makes it a low-friction option for individuals or teams evaluating the core scanner, but advanced threat prioritization, Enterprise cloud auditors, and compliance mapping are outside its stated scope.

Pro (annual) costs $39 a year, billed as $470/yr, and saves $118 versus monthly billing. It adds CVE matching, risk scoring, four parallel analysis agents, and a 48-hour email-support SLA. Pro (monthly) costs $49 a month, billed each month, and provides the same features, including CVE matching, risk scoring, and parallel analysis agents. Annual billing is the lower-cost route for a continuing deployment; monthly billing avoids an annual term but costs more over a year. Pro is the fit for teams wanting vulnerability context and support without Enterprise’s cloud and framework features.

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 invoiced annually, for up to 25 seats or scanning nodes. Enterprise Scale costs $10,000 a year and includes unlimited seats, a custom SLA, and custom plugins. These tiers target organizations that need Enterprise capabilities at different deployment sizes; Scale is the option when seat limits or custom requirements matter. Enterprise support adds onboarding, dedicated channels, or a dedicated support engineer. Community has self-serve documentation and GitHub issues or discussions, while Pro provides email support.

Platforms

NSAuditor AI runs on Linux, macOS, and Windows. Its agentless, on-premises deployment and credentialed scans suit organizations able to run audits from infrastructure they control; it is not designed as a web-hosted scanning service.

Who it's for

NSAuditor AI is best suited to security and infrastructure teams that prioritize read-only access, local control, or offline operation. Community can serve as a free entry point, while Pro makes more sense for teams that need CVE matching, risk scoring, and parallel analysis. Enterprise is the relevant tier for cloud coverage across AWS, GCP, and Azure, multi-framework compliance mapping, or larger seat and scanning-node needs.

It is a weaker fit for buyers who require a hosted product, need Enterprise cloud auditors or compliance mappings at a lower tier, or do not want to manage customer-provided AI keys and locally populated threat-intelligence stores.

Pros and cons

• Pros: Read-only scans avoid create, write, modify, and delete permissions, reducing the access scope required for audits.
• Pros: Air-gapped operation, offline licensing, and zero-data-exfiltration support suit restricted environments.
• Pros: Free Community includes 27 MIT-licensed scanner plugins without signup, so teams can begin without a paid commitment.
• Pros: Enterprise combines 28 cloud auditors with mapping across eight named frameworks, useful for organizations with both cloud and compliance needs.
• Cons: Cloud auditors and framework mapping require Enterprise, whose annual plans start at $2,000 a year.
• Cons: Pro threat-intelligence matching depends on customer-populated stores, adding maintenance work for teams that want exploit-first prioritization.
• Cons: AI analysis relies on customer-provided API keys, so teams must arrange their own provider access.
• Cons: Enterprise connectors for Vanta, Drata, and Secureframe have not completed production live-tenant validation.

Alternatives

For a broader comparison, see Network Vulnerability Scanners and Vulnerability Scanning Software.

ScanTitan is worth considering for buyers seeking a web- or API-platform option, with a free plan and a Professional tier at $119 a year for advanced vulnerability and exposure scanning, malware monitoring, and uptime monitoring.

ManageEngine Vulnerability Manager Plus is an alternative with a free edition and a $695 a year Professional on-premises plan, as well as Windows, macOS, Linux, web, API, and self-hosted platform support.

Nuclei is a free, MIT-licensed CLI intended primarily as a standalone tool, a leaner choice for users who want that format.

OpenVAS offers a free virtual appliance with a community feed, limited enterprise features, and no default support.

OWASP Amass is a free Apache-licensed framework for readers who prefer that open-source option.

Pentest-Tools Port Scanner is a web- and API-based alternative for open-port and service discovery, with a free tier and a NetSec plan starting at $95 a month.

Qualys External Attack Surface Management offers a 30-day no-cost trial of CSAM with EASM for buyers considering that option.

Verdict

Choose NSAuditor AI if your priority is agentless, read-only auditing that stays on infrastructure you control, particularly if offline operation matters. Community is a credible free starting point, and Pro adds practical vulnerability prioritization; look elsewhere if you need hosted deployment or cloud and compliance coverage without an Enterprise commitment.