Armorer Labs

Armorer helps companies in regulated industries ship their own AI systems faster and keep them secure in production. Most security tools flag an issue and file a ticket. Armorer assesses your agent and simulates attacks to find the real issues. Then it creates a verified fix that stops the attack without breaking the business, ready for your approval in about 4 hours. In production, Armorer checks every agent action in milliseconds, with no GPU needed. It detects malicious behavior such as prompt injection, goal hijacking and data leaks, then allows, holds or denies the action. Armorer's detection models beat every other detector we tested on six public benchmarks. Armorer is 22% more accurate than JEV while being 88x faster, so users won't feel the delay. We spent years building and evaluating AI security systems together at AWS, including its first customer-facing AI security agent, which scaled to 100k+ customers. Armorer is backed by Paul Vixie, an internet pioneer inducted into the Internet Hall of Fame in 2014.

Website

armorerlabs.com

City

San Francisco

Country

United States

YC batch

Fall 2026

Team

2 people

Stage

Early stage

AI-native

Yes

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