Alternatives to Burp Suite at Mid-market companies

Automated API security scanning provides continuous visibility into public-facing interfaces without requiring code changes or agent deployment. middleBrick operates as a black-box scanner that submits requests to a submitted URL and returns a risk score on an A–F scale with prioritized findings.

The tool focuses on detection rather than remediation. It surfaces misconfigurations and data exposures aligned to recognized industry standards and provides guidance on how to investigate and address each finding. It does not fix, patch, block, or remediate issues directly.

middleBrick maps findings to three well established frameworks: PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10 (2023). Coverage includes the following categories:

• Authentication bypass, JWT misconfigurations such as alg=none and expired tokens, and security header compliance.
• BOLA and IDOR via sequential ID enumeration and active adjacent-ID probing.
• BFLA and privilege escalation through admin endpoint probing and role/permission leakage.
• Property over-exposure and internal field leakage relevant to mass-assessment surfaces.
• Input validation issues including dangerous HTTP methods, CORS wildcard usage, and debug endpoints.
• Rate limiting behavior, oversized responses, and detection of unpaginated arrays.
• Data exposure patterns including emails, Luhn-validated card numbers, context-aware SSNs, and API key formats.
• Encryption hygiene such as HTTPS redirects, HSTS, and cookie flags.
• SSRF indicators involving URL-accepting parameters and internal IP probing.
• Inventory management signals like missing versioning and legacy path patterns.
• Unsafe consumption surfaces including excessive third-party URLs and webhook endpoints.
• LLM and AI security probes spanning multiple tiers to assess prompt extraction, jailbreak, and data exfiltration risks.

The scanner parses OpenAPI 3.0, 3.1, and Swagger 2.0 documents and resolves recursive $ref entries. It cross-references the spec against runtime interactions to highlight undefined security schemes, deprecated operations, and missing pagination definitions.

Authenticated scans require domain ownership verification through DNS TXT records or an HTTP well-known file. Supported credentials include Bearer tokens, API keys, Basic authentication, and Cookies. Only a restricted allowlist of headers is forwarded, limiting risk during testing.

Scans complete in under a minute and use only read-only methods. Private IPs, localhost, and cloud metadata endpoints are blocked at multiple layers. Customer data is deletable on demand and is never used for model training.

Pro tier features scheduled rescans at intervals of six hours, daily, weekly, or monthly. Diff detection highlights new findings, resolved findings, and score drift. Alerts are rate-limited to one notification per hour per API. Webhooks are HMAC-SHA256 signed and auto-disabled after five consecutive failures to reduce noise.

The platform offers multiple engagement models. The Web Dashboard centralizes scans, report downloads, score trend tracking, and branded compliance PDFs. The CLI via the middlebrick npm package supports JSON and text output for scripting. A GitHub Action enforces CI/CD gates by failing builds when scores fall below configured thresholds.

An MCP Server enables scanning from AI coding assistants such as Claude and Cursor. The API client allows custom integrations for organizations with existing workflows.