SupraWall
Open Source deterministic security Firewall for AI agents
SupraWall launched on May 12, 2026 with 4 votes, #2,419 of 20,538 launches that month and more than 75% of that year's launches.
What it does
AI agents go rogue. System prompts get bypassed 94% of the time. SupraWall is the open-source, zero-trust firewall that sits between your agent and the real world. One line of code. No latency tax. What it does in one SDK 🔐 Vault credentials (no secrets in prompts) 💸 Hard budget caps & infinite loop circuit breakers 🚫 Block unauthorized tool calls deterministically 🧹 Scrub PII before it leaks 📋 EU AI Act-ready 👤 Human-in-the-loop approvals LangChain, CrewAI, OpenClaw, Hermes
Secure your autonomous AI agents with the first zero-trust runtime firewall. Block prompt injection, prevent unauthorized tool execution, and control LLM costs.
Your agent sees your API keys, passwords, and credit cards in plaintext. One prompt injection and all credentials are exfiltrated. An infinite loop burns $4,000 overnight. A hallucinated API call repeats 10,000 times. You find out at 8am. Your agent deletes the production database. Sends 5,000 emails. Overwrites config files. All because the system prompt said 'be helpful'. Your agent sends customer names, emails, and SSNs to an external API. GDPR violation. Lawsuit. Front page news. The auditor asks: 'Prove your AI had human oversight.' You have nothing. No logs, no timestamps, no evidence. A hidden instruction in a web search result overrides your system prompt. Your agent now obeys the…from supra-wall.com
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I built a firewall for agents because prompt engineering isn't securityJan 2026 · github.com · ▲7Hi HN, I’m the creator of Cordum. I’ve been working in DevOps and infrastructure for years (currently in the fintech/security space), and as I started playing with AI agents, I noticed a scary pattern. Most "safety" mechanisms rely on system prompts ("Please don't do X") or flimsy Python logic inside the agent itself. If we treat agents as autonomous employees, giving them root access and hoping they listen to instructions felt insane to me. I wanted a way to enforce hard constraints that the LLM cannot override, no matter how "jailbroken" it gets. So I built Cordum. It’s an open-source…
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