Alternatives to Burp Suite at Enterprise organizations

What middleBrick covers

  • Black-box scanning with under one minute completion time
  • 12 OWASP API Top 10 categories with JWT and SSRF coverage
  • OpenAPI 3.0/3.1/Swagger 2.0 parsing with $ref resolution
  • Authenticated scans with strict header allowlisting
  • CI/CD integration via GitHub Action and MCP Server support
  • Pro tier continuous monitoring with diff detection

Purpose and scope of black-box API scanning

middleBrick is a self-service API security scanner designed for teams that need continuous visibility without requiring code access or SDK integration. You submit a target URL and receive a risk score from A to F along with prioritized findings. The scanner operates in black-box mode using read-only methods (GET and HEAD) and text-only POST for LLM probes, completing a scan in under a minute. It does not fix, patch, block, or remediate; it detects and reports findings with remediation guidance.

Detection coverage aligned to industry standards

middleBrick maps findings to three frameworks: PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10 (2023). Detection spans 12 categories including authentication bypass, JWT misconfigurations such as alg=none and expired tokens, BOLA and IDOR via sequential ID enumeration, BFLA and privilege escalation attempts, property over-exposure, input validation issues like CORS wildcard usage, rate-limiting characteristics, data exposure including PII and API key patterns, encryption misconfigurations, SSRF indicators, and inventory management gaps. The scanner also covers unsafe consumption surface and LLM / AI Security through 18 adversarial probes across Quick, Standard, and Deep tiers, including system prompt extraction, instruction override, and token smuggling.

OpenAPI analysis and authenticated scanning

middleBrick parses OpenAPI 3.0, 3.1, and Swagger 2.0 with recursive $ref resolution, cross-referencing spec definitions against runtime observations to identify undefined security schemes, sensitive fields, deprecated operations, and missing pagination. For authenticated scans, supported methods include Bearer, API key, Basic auth, and Cookie. Domain verification is enforced through DNS TXT records or an HTTP well-known file, ensuring only the domain owner can scan with credentials. A strict header allowlist limits forwarded headers to Authorization, X-API-Key, Cookie, and X-Custom-*.

Product capabilities and integrations

The Web Dashboard provides a centralized view for scans, report downloads, score trend tracking, and branded compliance PDFs. The CLI via the middlebrick npm package supports commands such as middlebrick scan <url> with JSON or text output. A GitHub Action enables CI/CD gating, failing the build when the score drops below a defined threshold. The MCP Server allows scans from AI coding assistants like Claude and Cursor, and an API client supports custom integrations for programmatic access.

Continuous monitoring and data governance

Pro tier adds scheduled rescans at intervals of six hours, daily, weekly, or monthly, with diff detection to surface new findings, resolved findings, and score drift. Email alerts are rate-limited to one per hour per API, and HMAC-SHA256 signed webhooks disable automatically after five consecutive failures. Customer scan data is deletable on demand and purged within 30 days of cancellation; data is never sold and is not used for model training.

Limitations and compliance framing

middleBrick does not perform active SQL injection or command injection testing, as those require intrusive payloads outside its scope. It does not detect business logic vulnerabilities, blind SSRF relying on out-of-band infrastructure, or replace a human pentester for high-stakes audits. The tool helps you prepare for compliance with PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10 (2023), and supports audit evidence for other frameworks through alignment with described security controls.

Frequently Asked Questions

How does the scanner handle authentication during a scan?
It supports Bearer tokens, API keys, Basic auth, and cookies. Domain ownership is verified before credentials are accepted, and only a limited set of headers are forwarded.
What is the frequency of scans in the Pro continuous monitoring tier?
Scans can be scheduled every six hours, daily, weekly, or monthly, with differences highlighted across scans.
Does the tool perform active exploitation such as SQL injection?
No. The scanner uses read-only methods and does not execute active SQL injection or command injection tests.
Can scan data be deleted after a subscription is canceled?
Yes. Customer data is deletable on demand and fully purged within 30 days of cancellation.
What OpenAPI versions are supported for analysis?
OpenAPI 3.0, 3.1, and Swagger 2.0 are supported with recursive $ref resolution.