Wallarm API Security Platform vs. Arcjet

Protect any API. In any environment. Against any threats. Wallarm is the platform security teams choose to protect cloud-native APIs. The Wallarm platform gives teams the ability to detect and block API attacks. Customers choose Wallarm because it delivers a complete inventory of their APIs, AI apps, and agentic AI, along with patented AI/ML API abuse detection, real-time blocking on day zero, and an API SOC-as-a-service. Whether you protect legacy or brand new cloud-native APIs, Wallarm’s multi-cloud platform delivers the capabilities to secure your business against emerging threats.

Arcjet is runtime security for AI agents. It puts the decision where the action is: block prompt injection, stop PII leaks, block bots, and add guardrails to tools, APIs, and database calls. Identity tells you who is asking, but it cannot tell you what happens next. Arcjet runs inside the code that takes the action, so every agent action is observed in the run it belongs to, checked before it executes, and kept as evidence afterwards. Each check returns a decision your code acts on: allow, block, redact, or hold for review.