42Crunch vs Cloudflare API Shield

42Crunch positions itself as a managed API security gateway, while this tool is a self-service API security scanner. Submit a URL, receive a risk score and prioritized findings without granting code or runtime access.

The scanner performs black-box testing only; no agents, SDKs, or code instrumentation are required. It works with any language, framework, or cloud target, whereas complementary platforms that rely on sidecars or injected components impose deployment constraints.

Authenticated scanning is available at higher tiers using Bearer, API key, Basic auth, or Cookie, gated by domain verification to ensure only the domain owner can scan with credentials. Header forwarding is restricted to an allowlist for safety and predictability.

This tool detects issues across 12 categories aligned to the OWASP API Top 10 (2023), including authentication bypass, JWT misconfigurations, BOLA and BFLA, property over-exposure, input validation, rate limiting, data exposure, encryption, SSRF, inventory management, unsafe consumption, and LLM/AI security.

LLM-specific testing includes 18 adversarial probes across Quick, Standard, and Deep tiers, covering system prompt extraction, instruction override, jailbreaks, data exfiltration, token smuggling, and related model-abuse techniques. Each category maps directly to OWASP API Top 10 (2023) controls.

The scanner parses OpenAPI 3.0, 3.1, and Swagger 2.0 with recursive $ref resolution and cross-references spec definitions against runtime behavior to highlight undefined security schemes, deprecated operations, and missing pagination. In contrast, complementary tools may emphasize runtime behavior or gateway policy enforcement rather than spec-to-runtime alignment.

For frameworks commonly associated with heavy API usage, such as those involving JWT validation patterns or complex role-based access, the scanner checks for weak or missing configurations that enable privilege escalation or over-privileged access.

Findings map to PCI-DSS 4.0, SOC 2 Type II, and OWASP API Top 10 (2023) with direct language such as maps findings to and validates controls from. This supports audit evidence generation without asserting certification or compliance guarantees.

Other regulations are addressed through alignment language, such as helps you prepare for or supports audit evidence for, avoiding unqualified claims like compliant with or ensures compliance with. The tool surfaces findings relevant to HIPAA, GDPR, ISO 27001, NIST, CCPA, and similar frameworks where applicable, but it does not certify adherence.

Reporting includes branded compliance PDFs from the web dashboard, enabling teams to share evidence with internal stakeholders or auditors while maintaining clarity about the tool’s role as a scanner, not an auditor.

The product offers a web dashboard for scan management and score trend tracking, a CLI via an npm package for local execution, and a GitHub Action that can fail CI/CD builds when scores drop below defined thresholds. An MCP Server enables scanning from AI coding assistants, and an API client supports custom integrations.

Pro tier adds continuous monitoring with scheduled rescans, diff detection across runs, email alerts rate-limited to one per hour per API, and HMAC-SHA256 signed webhooks that auto-disable after repeated failures. Enterprise tiers provide unlimited API coverage, custom rules, SSO, audit logs, SLAs, and dedicated support.

Pricing is structured with a free tier for occasional use, paid tiers for teams that require authenticated scanning, monitoring, and CI/CD enforcement. The total cost depends on the number of APIs monitored and the depth of continuous monitoring required.

The scanner uses read-only methods (GET and HEAD) plus text-only POST for LLM probes; destructive payloads are never sent. Private IPs, localhost, and cloud metadata endpoints are blocked at multiple layers to prevent accidental impact on internal infrastructure.

Customer data can be deleted on demand and is purged within 30 days of cancellation. Scan data is never sold and is not used for model training.

Recognizing its limits, the tool does not perform active SQL injection or command injection testing, does not detect business logic vulnerabilities that require domain understanding, and does not replace a human pentester for high-stakes audits. It also does not perform blind SSRF testing that relies on out-of-band infrastructure. The scanner reports findings and provides remediation guidance, but it does not fix, patch, block, or remediate issues directly.