Ammune API Discovery vs Arcjet: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Ammune API Discovery is a commercial api security tool by Ammune.ai. Arcjet is a commercial api security tool by Arcjet. 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:
Mid-market and enterprise teams drowning in shadow APIs and undocumented endpoints will find immediate value in Ammune API Discovery's automated cataloging and real-time threat detection, which maps your actual API surface before you can protect it. The platform covers five NIST CSF 2.0 functions including continuous monitoring and adverse event analysis, with AI-powered bot and DDoS protection layered on top of standard WAF coverage. Skip this if your primary concern is API governance and policy enforcement rather than threat detection; Ammune leans heavily into the security side of the API stack, not the operational inventory side.
Developers building APIs and web services need bot and rate-limit protection that doesn't require security expertise to deploy, and Arcjet's SDK-first approach means you configure rules in code rather than wrestling with WAF consoles. The WebAssembly-based local execution runs decisions at the edge without sending traffic to external services, cutting latency and keeping you compliant with data residency constraints. Skip this if your primary concern is legacy OWASP Top 10 coverage on existing monolithic applications; Arcjet is built for modern application stacks, not retrofitting old infrastructure.
