Crust
Crust is an open-source security gateway for AI agents, written in Go, focused on preventing agents from reading secrets or performing destructive/unauthorized actions.
About
Crust is an open-source security gateway for AI agents, written in Go, focused on preventing agents from reading secrets or performing destructive/unauthorized actions. One-command install, framework-agnostic, and designed for near-zero latency overhead. Built by Bake AI with an enterprise Pro path available (early access, first 20 users free at time of review).
Developers who want a lightweight, low-friction security gateway that prevents agents from accidentally exposing secrets or running destructive commands — particularly teams who need something they can install in minutes without deep framework-specific integration work.
Pros & Cons
Pros
- check Single focus: secrets protection and destructive action blocking — clear scope, easy to reason about
- check Go-based gateway means minimal overhead — security layer doesn't slow down agent execution
- check Framework-agnostic: one-command install works with any agent setup, no deep integration required
- check Open source core available on GitHub for inspection and self-hosting
- check Enterprise path exists for teams needing policy customization beyond the open-source defaults
Cons
- close Website content is sparse — limited documentation on what "guardrails" cover in practice (specific rule sets, configuration options)
- close Early-stage project by a small team (Bake AI) with no production case studies cited
- close "First 20 users get free access" for Pro suggests very early-stage commercial product
- close Secret protection in practice is hard — depends heavily on how secrets are stored and accessed in the agent environment
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