PromptBrake

PromptBrake is a security testing platform designed for teams building with LLM APIs. It runs 60+ attack prompts across 12 security test categories to identify vulnerabilities such as prompt injection, data leaks, policy bypasses, tool misuse, and credential exposure.

The tool works by sending adversarial prompts to your LLM endpoint (OpenAI, Claude, Gemini, or any OpenAI-compatible API) and analyzing the responses for security issues. Each test returns a clear pass, warn, or fail result with evidence and remediation guidance, so developers can understand and fix vulnerabilities without needing deep security expertise.

Key features include support for multiple AI providers, CI/CD integration for automated testing in deployment pipelines, scan history tracking, and detailed evidence logs that capture exactly what went wrong during failed tests. API keys are never stored, and evidence is only captured for failed or warning tests to maintain privacy.

The platform is useful for development teams shipping LLM-powered features, security teams conducting pre-deployment audits, and DevOps teams integrating security gates into their release process. It offers a free trial with no credit card required, making it easy to test your endpoints before committing to a paid plan.