grenz.dev

grenz.dev is a live English-language website hosted on Amazon.com, Inc. (AS16509) in the United States, served by Vercel. cl0q first saw it on 2026-08-12 and last crawled it on 2026-08-12. It resolves to 216.198.79.1.

How the site describes itself:

Grenz — a firewall for AI agents

An agent is one poisoned input from being the attacker. Grenz is a local firewall that refuses every action you did not grant, keeps your real credentials out of the agent's reach, scopes every sub-agent strictly down, and revokes an agent the instant it trips a decoy. Open source, self-hosted, decides locally.