Open-Source Gateway to Stop Tool-Abusing Prompt Injections
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…
Open-Source Gateway to Stop Tool-Abusing Prompt Injections launched on October 13, 2025 with 9 votes, #1,657 of 8,178 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Move AI into production without losing control of data, access, and actions.
AI becomes useful when it can connect to your data, call your tools, and take action. Archestra gives every agent and AI client one controlled gateway to your systems. Safe AI is not AI that never makes a mistake, but the one whose access and actions are bounded, enforced, and visible. Connect Entra ID, Okta, OIDC, or SAML. Archestra records who initiated each tool call and resolves user credentials at runtime. Control tool access, approvals, isolation, and network egress. Block unauthorized actions and unsafe data flows before they reach your systems. Trace model requests, tool calls, policy decisions, and cost. Export telemetry through OpenTelemetry and Prometheus. Engineers keep Claude…from archestra.ai
In the maker’s words, at launch
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…
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