Brex open-sources CrabTrap, an LLM-judged HTTP proxy designed to secure AI agents in production
EDITOR BRIEF
Brex introduced CrabTrap, an open-source HTTP proxy that uses an LLM-as-a-judge approach to inspect and control AI agent network activity. The tool is aimed at helping teams deploy agents more safely by adding a policy and review layer around outbound requests.
CONTEXT
As companies move AI agents from demos into production, security is shifting from prompt filtering to runtime controls over tool use and network access. CrabTrap reflects an emerging trend toward agent guardrails that sit in infrastructure, where enterprises can monitor, block, or approve actions before they affect real systems.
ARTICLE
<a href="https://www.brex.com/journal/building-crabtrap-open-source" rel="nofollow">https://www.brex.com/journal/building-crabtrap-open-source</a>