How to test AI APIs for prompt injection vulnerabilities before deployment

How to test AI APIs for prompt injection vulnerabilities before deployment

This task can be performed using PromptBrake

AI security testing before every release

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Prompt

PromptBrake

dev-tools

PromptBrake is a pre-release security testing platform for LLM-powered APIs. It runs repeatable scans against your endpoint to catch prompt injection, data leaks, unsafe tool use, and other failure modes before production, with clear evidence, baseline diffs, and CI release gates to help teams fix issues faster.

What to expect from an ideal product

  1. PromptBrake runs automated scans on your AI endpoints to catch prompt injection attacks before they reach users, testing different attack patterns against your API responses
  2. The platform checks for data leaks by sending test prompts designed to extract sensitive information, showing you exactly what private data might accidentally slip through
  3. It monitors unsafe tool usage by testing how your AI responds to malicious requests that try to trigger unauthorized actions or access restricted functions
  4. You get detailed reports with clear evidence of each vulnerability found, including the exact prompts that caused problems and suggested fixes for your development team
  5. The tool integrates directly into your release pipeline, automatically blocking deployments when critical security issues are detected and only allowing safe code to go live

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