Alternatives to 42Crunch in SaaS

This tool is a self-service API security scanner that operates as a black-box solution. You submit a target URL and receive a risk score ranging from A to F along with prioritized findings. It does not require agents, SDKs, or code access, and works with any language, framework, or cloud environment. Scan completion typically occurs in under a minute, exercising read-only methods such as GET and HEAD, with text-only POST support for LLM probes.

The scanner covers 12 categories aligned to OWASP API Top 10 (2023). It maps findings to this standard to validate controls relevant to API security. Detection capabilities include authentication bypass and JWT misconfigurations, BOLA and IDOR via sequential ID enumeration, BFLA and privilege escalation attempts, property over-exposure, input validation issues such as CORS wildcard usage, rate-limiting characteristics, data exposure patterns including PII and API key formats, encryption misconfigurations, SSRF indicators, and inventory management gaps. An additional category addresses LLM/AI Security through adversarial probes across multiple scan tiers.

OpenAPI specifications in versions 3.0, 3.1, and Swagger 2.0 are parsed with recursive $ref resolution. The scanner cross-references spec definitions against runtime observations to identify undefined security schemes, sensitive fields, deprecated operations, and missing pagination. These capabilities help you prepare for compliance evidence under SOC 2 Type II and PCI-DSS 4.0 by surfacing findings relevant to those frameworks.

Authenticated scanning is available from the Starter tier upward, supporting Bearer tokens, API keys, Basic authentication, and cookies. Domain verification is enforced through DNS TXT records or an HTTP well-known file to ensure only the domain owner can scan with credentials. A strict header allowlist is applied, forwarding only Authorization, X-API-Key, Cookie, and X-Custom-* headers.

The scanner maintains a strict read-only posture, never sending destructive payloads. Private IPs, localhost, and cloud metadata endpoints are blocked at multiple layers. Customer scan data can be deleted on demand and is purged within 30 days of cancellation. It is not used for model training and is never sold.

The Web Dashboard provides a centralized location to run scans, review reports, track score trends, and download branded compliance PDFs. The CLI, distributed as an npm package, enables commands such as middlebrick scan <url> with JSON or text output. A GitHub Action is available for CI/CD gating, failing builds when the score drops below a defined threshold. An MCP Server allows scanning from AI coding assistants including Claude and Cursor, and a full API client supports custom integrations.

Continuous monitoring in the Pro tier includes scheduled rescans at intervals of six hours, daily, weekly, or monthly. Diff detection highlights new findings, resolved findings, and score drift. Security alerts are rate-limited to one per hour per API and delivered by email, with HMAC-SHA256 signed webhooks that auto-disable after five consecutive failures. Teams and Slack integrations are available at higher tiers.

This tool 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, as those activities fall outside the read-only scope. Business logic vulnerabilities are not detected, as they require domain-specific human analysis. Blind SSRF and other out-of-band infrastructure issues are out of scope, and the scanner does not replace a human pentester for high-stakes audits.