42Crunch vs GitGuardian

42Crunch positions itself as a specialized API security scanner with a strong focus on runtime protection and policy enforcement, while middleBrick is a self-service black-box scanner designed for broad compatibility. middleBrick requires no agents, SDKs, or code access and works with any language, framework, or cloud environment using read-only methods. This makes middleBrick suitable for teams that need lightweight, on-demand scanning across diverse tech stacks without changing deployment pipelines.

42Crunch often expects tighter integration into runtime environments to apply security policies, which can align with organizations seeking enforcement alongside scanning. In contrast, middleBrick targets security and engineering practitioners who want a simple submit-a-URL workflow with quick, low-overhead scans and no infrastructure footprint.

Both tools cover the OWASP API Top 10, but their depth and approach differ. middleBrick explicitly maps findings to OWASP API Top 10 (2023), PCI-DSS 4.0, and SOC 2 Type II, and it detects 12 categories including authentication bypass, BOLA, BFLA, property authorization, input validation, rate limiting, data exposure, encryption, SSRF, inventory management, unsafe consumption, and LLM/AI security. The LLM/AI security category includes 18 adversarial probe types across multiple scan tiers, addressing prompt injection, jailbreaks, data exfiltration attempts, and token smuggling.

42Crunch offers API security testing and policy enforcement, with features such as runtime protection and active threat mitigation. While it also addresses common API risks, middleBrick provides transparent, out-of-the-box coverage of common and LLM-specific threats without requiring agents or runtime integration, which can simplify adoption for heterogeneous environments.

middleBrick parses OpenAPI 3.0, 3.1, and Swagger 2.0 with recursive $ref resolution and cross-references spec definitions against runtime findings to identify undefined security schemes, sensitive fields, deprecated operations, and missing pagination. Authenticated scanning is available from the Starter tier onward, supporting Bearer, API key, Basic auth, and cookies, with a domain verification gate to ensure only domain owners can scan with credentials. The scanner forwards a strict allowlist of headers to minimize exposure.

42Crunch also supports authenticated testing, though its runtime-oriented model may require more setup to integrate authentication flows. middleBrick’s OpenAPI-first approach helps contextualize findings against the intended contract, which can reduce false positives and improve remediation guidance.

middleBrick offers a free tier with 3 scans per month and CLI access, a Starter plan at 99 dollars per month for 15 APIs with dashboard, email alerts, and MCP Server, and a Pro plan at 499 dollars per month for 100 APIs with continuous monitoring, GitHub Action gates, CI/CD integration, Slack and Teams alerts, compliance reports, and signed webhooks. An Enterprise tier supports unlimited APIs, custom rules, SSO, audit logs, SLAs, and dedicated support. Continuous monitoring includes scheduled rescans, diff detection, email alerts rate-limited to 1 per hour per API, and HMAC-SHA256 signed webhooks with auto-disable after 5 consecutive failures.

42Crunch’s pricing and monitoring features are oriented toward runtime security and policy automation, which can involve higher operational overhead. For teams focused on pre-deployment scanning and straightforward integration, middleBrick’s CLI, web dashboard, and CI/CD actions provide a lighter, more flexible model without locking into a specific runtime environment.

middleBrick does not fix, patch, block, or remediate issues; it detects and reports with remediation guidance. It does not perform active SQL injection or command injection testing, does not detect business logic vulnerabilities, and does not replace a human pentester for high-stakes audits. Blind SSRF and other out-of-scope findings are explicitly not covered.

When choosing between these tools, consider whether you need runtime enforcement and tight integration with deployment pipelines (pointing toward a specialized runtime security platform) or prefer a portable, low-friction scanner that emphasizes broad compatibility, OpenAPI contract validation, and LLM-specific testing. Evaluate on criteria such as environment diversity, required authentication methods, need for continuous monitoring, and the importance of transparent, agentless scanning.