5 free tools to prepare your AI app’s first security tests

If you’re shipping an AI chatbot or agent and don’t know where to start with security testing, I built five free tools in PromptBrake to help.

Get prompt-injection inputs to try, map risks to test ideas, plan release checks, and build response or agent tool-call test packs. No PromptBrake account needed.

You can use them on the web or through MCP in your AI assistant. For example, ask: “Help me prepare tests for instructions hidden in documents my chatbot reads.” You get test inputs to run against your own app.

Free tools: https://promptbrake.com/free-tools

MCP endpoint: https://promptbrake.com/free-tools/mcp

PromptBrake also has a paid runner for executing tests, inspecting findings and retesting fixes. The free tools are available on their own.