42Crunch API Security Platform is a commercial api security tool by 42Crunch. DeepKeep AI Firewall is a commercial api security tool by DeepKeep. 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.
Security teams deploying large language models or AI agents in production need DeepKeep AI Firewall to prevent prompt injection and policy violations at runtime, where traditional API gateways fail to inspect semantic content. The tool covers three NIST CSF 2.0 functions,Platform Security, Continuous Monitoring, and Adverse Event Analysis,with particular strength in real-time content redaction and custom policy enforcement across hybrid cloud setups. Skip this if your primary concern is securing third-party AI APIs rather than your own AI systems; DeepKeep is built for organizations running their own models.
Platform for automated API security testing and runtime threat protection
Runtime protection firewall for AI systems and applications
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Common questions about comparing 42Crunch API Security Platform vs DeepKeep AI Firewall 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..
DeepKeep AI Firewall: Runtime protection firewall for AI systems and applications. built by DeepKeep. headquartered in Israel. Core capabilities include Real-time inspection of AI interactions, Blocking of policy violations, Content redaction for prompts and responses..
Both serve the API Security market but differ in approach, feature depth, and target audience.
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