Tracerny

Tracerny is a prompt injection defense SDK designed to help secure AI applications against malicious input. It addresses the problem of prompt injection, where attackers attempt to manipulate AI systems by injecting harmful prompts that redirect the system from its intended instructions. The tool is suitable for developers and organizations seeking to protect AI models from such attacks, particularly in environments handling sensitive data or requiring regulatory compliance.

The SDK operates by analyzing user input locally against a library of 258 real-world attack patterns, detecting suspicious prompts in less than 5 milliseconds. This local detection process ensures that no data leaves the user's server and no backend is required, resulting in zero network overhead and enhanced data privacy. Tracerny provides a simple result object to flag suspicious content, allowing developers to handle flagged prompts according to their needs. The tool is language-agnostic and works with any large language model, including GPT-4, Claude, Gemini, Llama, and custom models.

For enhanced security, Tracerny offers a two-layer defense approach. The free Layer 1 provides fast, local pattern detection, while the Pro Layer 2, known as LLM Sentinel, adds server-side output validation with comprehensive schema checks. Layer 2 is recommended for high-security applications and offers features such as context-aware scans, output validation for LLM responses, and a live threat dashboard. Users can self-host Layer 2 or configure it with custom endpoints. The system is built on a defense-in-depth philosophy, utilizing multiple internal layers (Slicer, Judge, and Salted Kernel) to increase the cost and difficulty of successful injection attacks.

Tracerny is available as an npm package and can be integrated into projects manually or by using coding agents that read its documentation for automated setup. The free tier includes local detection and 50 Layer 2 scans per month, suitable for testing and early-stage projects. The Pro plan, priced at $9 per month, expands Layer 2 capabilities to 2,500 scans per month and includes additional features and priority support. Payments are handled via Stripe, and users can cancel at any time with a 30-day money-back guarantee. Tracerny is open source and made by sandrobuilds.