FaultRay simulates infrastructure failures in memory — before they happen in production. Zero risk. Full visibility.
The Problem
terraform apply Broke Production. Again.Every DevOps engineer has a horror story. A config change that looked harmless. A cascade failure at 2am. The plan output looked fine — and then production fell over.
A single config tweak triggers a chain reaction across your infrastructure. By the time you see it, half your services are down.
That database with replicas: 1 slipped through code review. You found out at 2am when it went down.
Traditional chaos engineering means breaking production. Regulated industries can't do that. Most teams won't risk it.
The Solution
FaultRay builds a mathematical model of your entire system and simulates 2,000+ failure scenarios in memory. Nothing breaks. You just get answers.
Model your entire infra as a dependency graph. Inject faults virtually. See exactly what breaks — and what survives.
Mathematically prove your theoretical maximum uptime across hardware, software, operations, and external dependencies.
First tool to simulate how infrastructure failures cause AI agents to hallucinate, loop, or cascade errors through your system.
How It Works
No agents to install. No infrastructure changes. No credentials needed beyond what Terraform already has.
Integrations
Vendor-agnostic simulation that works across any infrastructure topology.
Comparison
| Gremlin | Steadybit | AWS FIS | FaultRay | |
|---|---|---|---|---|
| Approach | Breaks real things | Breaks real things | Breaks real things | Math simulation |
| Production risk | Medium-High | Medium | Medium | Zero |
| Setup | Agent per host | Agent per host | AWS only | pip install faultray |
| Scenarios | Manual | Manual | AWS only | 2,000+ auto-generated |
| Availability proof | No | No | No | 5-Layer Limit Model |
| AI agent testing | No | No | No | 7 fault types |
| Cost | $$$$ | $$$ | $$ | Free / Open Source |
Pricing
No credit card required. Install and start simulating in under a minute.
Get Started
One command. No agents. No infrastructure changes.
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Join engineering teams who simulate failures before they ship. Free forever for small projects.