42Crunch API Security Platform is a commercial api security tool by 42Crunch. express-brute is a free api security tool. Compare features, ratings, integrations, and community reviews side by side to find the best api security fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Security teams building APIs at scale need 42Crunch API Security Platform to catch BOLA and BFLA vulnerabilities before runtime, which most DAST tools miss because they don't understand OpenAPI contracts. The platform scores high on PR.DS (Data Security) and DE.CM (Continuous Monitoring) by enforcing schemas at runtime without proxying traffic through 42Crunch's infrastructure, meaning your data stays in your control. This isn't the right fit if your API footprint is small or static; the value compounds when you're shipping dozens of endpoints across multiple teams and need automated scanning in CI/CD plus real-time request blocking.
Express-brute is built for Node.js teams protecting REST APIs where a lightweight, stateless rate-limiting layer is enough to stop credential stuffing and basic brute-force attacks at the route level. The 568 GitHub stars and active maintenance reflect real production use in shops that don't need distributed state or advanced behavioral analysis. Skip this if you're running microservices at scale or need account lockout logic that survives service restarts; express-brute stores attempt counts in memory, which breaks across load-balanced instances without external persistence configured.
Platform for automated API security testing and runtime threat protection
A brute-force protection middleware for express routes that rate-limits incoming requests.
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Common questions about comparing 42Crunch API Security Platform vs express-brute for your api security needs.
42Crunch API Security Platform: Platform for automated API security testing and runtime threat protection. built by 42Crunch. headquartered in Ireland. Core capabilities include API Audit for security scoring and remediation guidance, API Scan for dynamic vulnerability testing and OpenAPI contract conformance, IDE integration for API security testing..
express-brute: A brute-force protection middleware for express routes that rate-limits incoming requests..
Both serve the API Security market but differ in approach, feature depth, and target audience.
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