
PromptBrake stress-tests LLM endpoints with 60+ real attack prompts across 12 security checks. It catches prompt injection, data leaks, tool misuse, policy bypasses, and unsafe output, then returns clear PASS/WARN/FAIL verdicts with evidence and guidance on fixes. Connect any OpenAI-, Claude-, or Gemini-compatible API, keep keys out of storage, and plug scans into CI/CD release gates with exportable reports.see more
Founder
Screenshots







About
In the rapidly evolving world of artificial intelligence, deploying Large Language Model (LLM) APIs securely is no longer optional; it's a fundamental necessity. Introducing PromptBrake, the essential stress-testing solution designed to give you absolute confidence before your AI-powered features ever see the light of day. Think of PromptBrake as your dedicated, relentless security auditor, running over 60 sophisticated attack prompts across 12 distinct security categories. We go far beyond surface-level checks, actively probing for critical vulnerabilities like prompt injection, subtle data leaks, unauthorized tool misuse, attempts to bypass established usage policies, and the generation of unsafe or biased outputs. Instead of just flagging an issue, PromptBrake delivers comprehensive, actionable intelligence. Every scan concludes with clear PASS, WARN, or FAIL verdicts, complete with concrete evidence of the vulnerability found and precise guidance on how to patch it, transforming abstract security risks into manageable engineering tasks.
Integrating PromptBrake into your existing development workflow is designed to be seamless and secure. Whether you are utilizing APIs from OpenAI, Claude, Gemini, or any other compatible service, our platform connects effortlessly, ensuring your sensitive API keys are never stored on our servers—your credentials remain completely under your control. The true power of PromptBrake lies in its ability to serve as a non-negotiable gatekeeper in your Continuous Integration/Continuous Deployment (CI/CD) pipeline. By plugging these rigorous security scans directly into your release process, you can automatically halt deployments that introduce new vulnerabilities, effectively preventing risky code from ever reaching production. This proactive defense mechanism saves countless hours of reactive debugging and protects your users and your brand reputation from potential security incidents.
Ultimately, PromptBrake is about enabling innovation without fear. We understand that speed to market is crucial, but not at the expense of security integrity. By automating the complex and often manual process of adversarial testing against your LLM endpoints, we empower development teams to move faster, knowing that a robust, industry-leading security check has already been performed. The generated, exportable reports provide clear documentation for compliance and internal review, solidifying your commitment to building trustworthy, resilient AI applications. Stop hoping your LLM APIs are secure; start proving it with the comprehensive testing power of PromptBrake.