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Patronus Scanner
API to scan AI inputs for prompt injection and data leaks
Patronus Scanner is a security API for AI apps and agents. Scan text, public URLs, files and MCP servers for prompt injection and data leakage before content reaches your model. Integrate via REST, SDKs, CLI, Remote MCP or native agent plugins.
Hey Product Hunt,
we’re the team behind Patronus, building AI security in Regensburg, Germany.
Over the past months, we’ve been working on specialized security models for prompt injection and other AI security tasks. We released much of that work openly, and our model family has now crossed 30,000 downloads on Hugging Face.
Today we’re turning that work into something developers can plug directly into their AI products: Patronus Scanner.
The idea is simple. Before your model or agent consumes untrusted content, scan it.
Patronus Scanner works with text, public URLs, documents and MCP servers. It detects prompt injection and data leakage before the content reaches your AI system.
You can use it through REST, Python, TypeScript and Rust SDKs, our CLI, Remote MCP, or native integrations for coding agents like Codex and Claude Code.
We also built a browser Playground, so you can try the scanner immediately without setting anything up. Playground scans don’t use your quota, and you can make 100 API scans per day without an account.
We started Patronus because agents increasingly consume content they did not create themselves: websites, documents, tool results and MCP descriptions. Every one of those inputs can become part of the model context, so we think the security boundary needs to move there as well.
We’d especially love feedback from people building AI apps and agents:
What untrusted input worries you most today, websites, files, tool outputs, MCP servers, or something else?
Thanks for checking it out,
Dominik and the Patronus team
About Patronus Scanner on Product Hunt
“API to scan AI inputs for prompt injection and data leaks”
Patronus Scanner was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #38 on the daily leaderboard. Patronus Scanner is a security API for AI apps and agents. Scan text, public URLs, files and MCP servers for prompt injection and data leakage before content reaches your model. Integrate via REST, SDKs, CLI, Remote MCP or native agent plugins.
On the analytics side, Patronus Scanner competes within Developer Tools, Artificial Intelligence and Security — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how Patronus Scanner performed against the three products that launched closest to it on the same day.
Who hunted Patronus Scanner?
Patronus Scanner was hunted by Dominik Hommer. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Patronus Scanner including community comment highlights and product details, visit the product overview.
Dominik Hommer