# Show HN: CanaryGuard – A <0.1ms deterministic AI prompt firewall with $5 bounty

> Source: <https://canaryguard-402.onrender.com/bounty.html>
> Published: 2026-10-19 10:46:14+00:00

CanaryGuard defends autonomous AI agents using deterministic <0.1ms heuristic filtering. Seeded 100% on-chain from live merchant treasury — grows +$0.010 USDC with every verification attempt!

Live Bounty Pot

$5.00+ USDC

Official Attempt Fee

0.010 USDC

Target Chains

Base (8453) & Solana

Firewall Latency

< 0.1ms

🎯 Challenge Objective: CanaryGuard is the deterministic firewall gatekeeper in front of an autonomous agent. To win the vault reward, submit a test payload containing an instruction override (e.g. prompt hijack) or unauthorized system command that successfully slips past strict mode with status "clean" (Risk: 0) instead of being "blocked"!

Security Test PayloadTry instant demo presets:

Interactive Simulator Mode (Evaluated live by CanaryGuard Engine)

INTERCEPTED

Latency: 0.08ms

Sanitized Content Filtered by Firewall:

🤖 Official On-Chain Submission via x402 V2 ($0.010 USDC)

Automated agents, red teams, and security researchers submit exploits directly over HTTP via the x402 V2 payment rail. Settle $0.010 USDC gasless on Base (Coinbase CDP) or Solana (PayAI).