Alternatives
Products that do what PromptShield does
The world’s first LLM Firewall
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Production grade prompt injection defense middleware for LLM
Jul 2026
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Prompt-injection firewall for prod LLM apps
Jul 2026 · insightits.com
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At Deno we've been using OpenClaw and other agents increasingly for addressing production problems in Deno Deploy - when a PagerDuty alert fires, the agent starts researching the cause and making fixes. In order to do this, the agent needs access to real production systems - postgres, kubernetes, gcp, clickhouse, github, etc. But this is dangerous to say the least - we want destructive actions to be reviewed by other LLMs, approved by humans, and logged appropriately. Claw Patrol terminates TCP connections over WireGuard or Tailscale, then parses application protocols (eg http, postgres,…
Jun 2026 · github.com
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Hi HN, Matvey, Ildar, Joey, and Dominik here. If you're building LLM agents that use tools, you're probably worried about prompt injection attacks that can hijack those tools. We were too, and found that solutions like prompt-based filtering or secondary "guard" LLMs can be unreliable. Our thesis is that agent security should be handled at the network level between the agent and the LLM, just like a traditional web application firewall. So we built Archestra Platform: an open-source gateway that acts as a secure proxy for your AI agents. It's designed to be a deterministic firewall against…
Oct 2025 · archestra.ai
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"Your LLM's last line of defence against the internet."
May 2026 · wonderwallai.skintlabs.ai
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Block malicious web content before it reaches your AI.
Jan 2026
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Immutable deterministic security architecture for AI systems
Apr 2026 · sovereign-shield.net
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2024 · github.com
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