N0N4 Guardian runs on your own machine — the client starts it, so there is no endpoint to ping.
C2PA sign/verify for AI agents, prompt-injection scanning, and signed M2M custody handoffs.
Nothing serious here today
Today is the operative word: we check N0N4 Guardian every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Alternatives to N0N4 Guardian
same job, measured the same wayTurn URLs, PDFs and DOCX into clean Markdown for agents, plus prompt-injection scanning
HSM-backed vault secrets for AI agents (JIT fetch) plus prompt-injection and threat scanning.
Scan a page for hidden prompt-injection payloads targeting AI agents.
Scan prompts, tool definitions and model output for injection, and guard agent tool calls.
Scan AI agents for tool-calling vulnerabilities: prompt leaks, hijacking, injections, and more.
Prompt-injection firewall for AI agents — scan untrusted text before LLM calls.
Scan any public URL for hidden instructions aimed at AI agents (prompt injection). Free, no auth.
Email safety for AI agents: scan inbound for prompt-injection/phishing + outbound for secret leaks.
N0N4 Guardian — questions
Answers built from our own checks of this server.