Best alternative to Qualys

What middleBrick covers

  • Black-box API scanning with under-one-minute completion.
  • 12 OWASP API Top 10 (2023) aligned detection categories.
  • LLM adversarial probe testing across three scan tiers.
  • OpenAPI 3.0/3.1/Swagger 2.0 parsing with $ref resolution.
  • Authenticated scanning with strict header allowlisting.
  • Integration options including dashboard, CLI, GitHub Action, and MCP Server.

Overview and positioning

For teams evaluating API security scanners, the best alternative to Qualys for API-focused assessment is a self-service black-box scanner that returns a letter-grade risk score with prioritized findings. Unlike infrastructure-heavy options, this approach requires no agents, SDKs, or code access and works across any language, framework, or cloud environment. Scan completion occurs in under a minute using read-only methods (GET and HEAD) plus text-only POST for LLM probes. The tool maps findings to three frameworks: PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10 (2023), providing clear audit evidence without claiming certification or compliance guarantees. For other regulations, it helps you prepare for and aligns with security controls described in relevant frameworks, while clearly stating that the tool is a scanner, not an auditor.

Detection scope and methodology

The scanner covers 12 categories aligned to OWASP API Top 10 (2023) and related compliance contexts. Detection capabilities include authentication bypass and JWT misconfigurations such as alg=none, weak algorithms, expired tokens, missing claims, and sensitive data in claims. It identifies BOLA and IDOR via sequential ID enumeration and active adjacent-ID probing, and BFLA via admin endpoint probing and privilege escalation indicators. Additional coverage includes property authorization over-exposure, input validation issues like CORS wildcards and dangerous HTTP methods, rate-limiting characteristics, and data exposure patterns such as emails, Luhn-validated card numbers, context-aware SSNs, and API key formats for AWS, Stripe, GitHub, and Slack. Encryption checks include HTTPS redirects, HSTS, and cookie flags. The tool also performs SSRF checks against URL-accepting parameters and body fields, and inventory management issues like missing versioning and server fingerprinting. For AI-facing APIs, it runs 18 adversarial probes across three scan tiers (Quick, Standard, Deep), testing for system prompt extraction, instruction override, jailbreak patterns, data exfiltration attempts, token smuggling, and other LLM-specific risks. OpenAPI 3.0, 3.1, and Swagger 2.0 files are parsed with recursive $ref resolution, and findings are cross-referenced against the spec to highlight undefined security schemes, sensitive fields, deprecated operations, and missing pagination. The scanner does not perform active SQL injection or command injection testing, does not detect business logic flaws that require domain understanding, does not perform blind SSRF testing, and does not replace a human pentester for high-stakes audits.

Authenticated scanning and safety controls

Authenticated scanning is available from the Starter tier and above, supporting Bearer tokens, API keys, Basic auth, and cookies. Domain verification is enforced through a DNS TXT record or an HTTP well-known file, ensuring that only the domain owner can scan with credentials. Header forwarding is restricted to Authorization, X-API-Key, Cookie, and X-Custom-* headers to limit exposure. The scanner maintains a strict safety posture: it uses read-only methods only, never sends destructive payloads, and blocks private IPs, localhost, and cloud metadata endpoints at multiple layers. Customer scan data is deletable on demand and purged within 30 days of cancellation. It is never sold and is not used for model training.

Products, integrations, and monitoring

The platform provides a Web Dashboard for scanning, viewing reports, tracking score trends, and downloading branded compliance PDFs. The CLI, distributed as an npm package, supports commands such as middlebrick scan <url> with JSON or text output. A GitHub Action is available for CI/CD gating, failing the build when the score drops below a chosen threshold. An MCP Server enables scanning from AI coding assistants including Claude and Cursor, and a programmable API supports custom integrations. For ongoing risk management, the Pro tier offers continuous monitoring with scheduled rescans every 6 hours, daily, weekly, or monthly. It provides diff detection across scans to highlight new findings, resolved findings, and score drift. Alerts are rate-limited to one per hour per API and can be delivered via email, Slack, or Teams. HMAC-SHA256 signed webhooks are included, with auto-disable after 5 consecutive failures.

Pricing and alternatives

Three primary tiers are available. The Free tier costs $0 and includes 3 scans per month plus CLI access. The Starter tier is $99 per month, supporting 15 APIs, monthly scans, dashboard access, email alerts, and the MCP Server. The Pro tier is $499 per month for 100 APIs, with additional APIs billed at $7 each, adding continuous monitoring, GitHub Action gates, CI/CD integration, Slack and Teams alerts, compliance reports, and signed webhooks. Enterprise starts at $2000 per month, offering unlimited APIs, custom rules, SSO, audit logs, SLA-backed support, and dedicated assistance. For teams seeking the best alternative to Qualys focused specifically on API security, this scanner balances breadth of detection, integration flexibility, and ease of use. Runners-up include specialized API security platforms that may offer broader infrastructure coverage but require agents or code changes and involve longer deployment cycles.

Frequently Asked Questions

Does this scanner perform active exploitation like SQL injection?
No. The scanner uses read-only methods and does not send destructive or intrusive payloads.
Can it scan APIs that require authentication?
Yes. Bearer, API key, Basic auth, and cookies are supported, with domain verification to ensure only the domain owner can scan with credentials.
What is the scan frequency for continuous monitoring?
Continuous monitoring supports scans every 6 hours, daily, weekly, or monthly, depending on the Pro tier subscription.
Does the tool store or sell customer scan data?
No. Scan data is deletable on demand, purged within 30 days of cancellation, and is never sold or used for model training.