NSAuditor AI

NSAuditor AI is an open-source AI-powered network security scanner that runs on a customer’s infrastructure. It supports scans of network hosts and CIDR subnets, as well as AWS, GCP, Azure, TLS, DNS, and operational technology targets; authenticated and continuous scanning are listed. The Community tier includes 27 scanner plugins, parallel subnet scanning, webhook alerts, and JSON, HTML, SARIF, and CSV exports. All tiers support AI analysis through OpenAI, Claude, or Ollama using customer-provided API keys. The maker says scan data, findings, and reports stay on the customer’s machine, and the scanner can run fully offline when configured. Pro adds CVE matching, risk scoring, and email support with a 48-hour SLA. It costs $39 a year or $49 a month. Enterprise adds cloud auditors and compliance evidence packs; plans start at $2,000 a year. The maker cautions that HIPAA evidence is not a BAA, and NIST SP 800-171 Rev 2 evidence supports preparation rather than certification. NSAuditor AI is available for Windows, macOS, and Linux.

NSAuditor AI offers an on-premises scanner with a free Community tier and paid additions for CVE triage and enterprise evidence. Readers should distinguish its evidence-generation support from formal certifications and note that GRC connectors remain early-access pending validation.

NSAuditor AI may suit MSPs, MSSPs, compliance consultancies, and mid-market teams assessing network or cloud targets on their own infrastructure. Its offline operation and customer-provided AI keys may matter to teams with specific data-handling requirements.

NSAuditor AI is an open-source network security scanner built for teams that want to scan infrastructure they operate. It is best suited to MSPs, compliance consultancies, and mid-market security teams that can manage an on-premises deployment. The free Community tier is unusually capable, while CVE triage and enterprise compliance workflows require paid plans.

Overview

NSAuditor AI runs on customer infrastructure and supports authenticated and continuous scanning of network hosts, CIDR subnets, cloud environments, TLS, DNS, and OT targets. That breadth makes it relevant to organizations assessing more than conventional network endpoints, but teams need to operate the scanning environment themselves.

The maker says scan data, findings, and reports stay on the customer’s machine, and license validation works offline. The scanner can run fully offline when configured. AI analysis is available on every tier through OpenAI, Claude, or Ollama, using customer-provided API keys; Ollama can keep that analysis offline. This gives organizations a choice of provider and deployment, though AI access depends on configuring their own keys or Ollama environment.

NSAuditor AI can also run as an MCP server for MCP-aware clients. Its on-premises design is a strong fit where local control matters, but less suitable for buyers seeking a hosted, managed scanner.

Key features

Scanning and exports

Community includes 27 scanner plugins, parallel subnet scanning, and a SYN scanner described as an Nmap wrapper. Webhook alerts and JSON, HTML, SARIF, and CSV exports provide useful ways to route findings into existing workflows without a paid subscription. Pro adds an executive HTML report and Jira-importer CSV, which may save time when findings need to reach management or Jira-based processes.

CVE triage and cloud auditing

Pro adds offline-first NVD CVE matching and exploit-first triage using CISA KEV and FIRST EPSS data stores populated by the customer. This is useful for teams that want to prioritize findings against known exploitation and likelihood signals while keeping the data stores under their control. It does require customers to populate those stores.

Enterprise adds cloud auditors for AWS, GCP, and Azure. That makes the tier more relevant to organizations assessing cloud alongside on-premises systems, though its annual price and seat limits make it a substantial step up from Pro.

Compliance evidence and integrations

Enterprise produces evidence packs for 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 packs support evidence preparation; they do not amount to formal certification. HIPAA evidence coverage is not a BAA, and NIST SP 800-171 Rev 2 support is described as preparation rather than certification.

Opt-in connectors for Vanta, Drata, and Secureframe may help teams move evidence into GRC workflows, but the maker says production validation is in progress and advises treating production use as early-access until it is complete. Pro includes email support with a 48-hour SLA; Enterprise adds a dedicated support channel and an onboarding call.

Pricing

Community costs nothing, billed Forever. It includes 27 scanner plugins, is MIT licensed, and has no restrictions. For individuals or teams evaluating an on-premises scanner, it covers scanning, AI analysis with customer-provided provider access, webhook alerts, and standard exports. It does not include Pro’s CVE matching, risk scoring, executive report, Jira-importer CSV, or email support.

Pro (annual) costs $39 a year, billed as $470/yr. Pro (monthly) costs $49 a month, billed each month. Both include everything in Community, CVE matching, risk scoring, and email support with a 48-hour SLA. Pro is the practical choice for teams that need CVE-based prioritization; it does not include Enterprise cloud auditors or compliance evidence packs.

Enterprise Base costs $2,000 a year with annual invoicing and supports up to 5 seats or scanning nodes. Enterprise Growth costs $5,000 a year with annual invoicing and supports up to 25 seats or scanning nodes. Enterprise Scale costs $10,000 a year with annual invoicing and includes unlimited seats, a custom SLA, and custom plugins. These tiers add cloud auditing, evidence packs, GRC connectors, and Enterprise support. The seat caps make Base and Growth relevant to smaller deployments; Scale suits broader use where unlimited seats or custom service terms matter.

Platforms

NSAuditor AI supports Linux, macOS, Windows, and self-hosted deployment. Its on-premises model aligns with organizations that want scans and results kept within their environment, and the maker says it can operate fully offline when configured.

Who it's for

The maker describes use by MSPs, MSSPs, compliance consultancies, and mid-market teams in healthcare, finance, government, and critical infrastructure. Community is a credible starting point for teams that can manage their own scanner and need broad target coverage. Pro is better for those who want CVE matching, risk scoring, and a defined email-support SLA. Enterprise is aimed at organizations that need cloud audits and structured compliance evidence, with the caveat that evidence support is not certification and the GRC connectors remain early-access for production use.

Pros and cons

• Strong free starting point: Community includes 27 plugins, multiple export formats, webhook alerts, and no restrictions.
• Local and offline operation: The maker says scan data stays on the customer’s machine, and configured deployments can run offline, including AI analysis through Ollama.
• Useful Pro triage: CVE matching and exploit-first prioritization add context for teams deciding which findings deserve attention.
• Enterprise evidence has clear limits: Evidence packs can support preparation, but they do not provide certification or a HIPAA BAA.
• GRC connectors need caution: Production validation is still in progress, so teams relying on those connectors should treat them as early-access.
• Self-managed deployment required: Buyers looking for a hosted scanner may find the on-premises operating model a poor fit.

Alternatives

Vulnerability Scanning Software and Network Vulnerability Scanners provide broader category lists for comparing options.

• Ivanti Neurons for Zero Trust Access is a paid option with named-user licensing and a SaaS billing model; consider it when that licensing approach fits better.
• Nuclei is a free, MIT-licensed CLI primarily intended as a standalone tool; choose it when a focused open-source command-line scanner better suits the workflow.
• Pentest-Tools Port Scanner is a web and API option with a free tier for open-port and service discovery, plus a NetSec plan starting at $95 a month; consider it for that hosted discovery workflow.
• Qualys External Attack Surface Management offers a 30-day no-cost CSAM with EASM trial; consider it when a time-limited evaluation of that offering is the priority.
• Vornin has a free tier capped at 3 targets, with web and network scanning, one compliance-framework preview, and manual scans; consider it when those limits meet the need.
• Intruder offers a free tier with 5 infrastructure targets, weekly external scans, one connected cloud account, and no web-app coverage; consider it when those caps suit a smaller evaluation.
• ManageEngine Vulnerability Manager Plus has a free edition and a Professional on-premises plan; consider it when that product’s edition structure is a better match.
• Nmap is free for end users, with a license that does not allow redistribution within commercial software or hardware products; consider it when a standalone network mapping tool is sufficient.

Verdict

NSAuditor AI is a strong fit for teams that want an on-premises scanner, broad target coverage, and local control over scan data, with a free Community tier that can support real workflows. Choose Pro for customer-managed CVE intelligence and risk scoring, or Enterprise when cloud audits and evidence packs justify the annual cost. Look elsewhere if you need a hosted service, formal compliance certification, a HIPAA BAA, or production-ready GRC connectors today.