Show HN: Loopers – Atomic pre-call budget checks for LLMs using Redis Lua

Category: security

Tags: ai-firewall, llm-budgeting, agent-security

Score: 7.5/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 7)

Loopers is a Go-based firewall for AI agents that enforces token budgets and prevents runaway loops using atomic Redis Lua checks. It integrates with 500+ LLM models and MCP tools, offering zero-storage security, sub-millisecond overhead, and fail-closed reliability, making it a novel combination of budget enforcement and agent security.

Target audience: backend devs, devops, data engineers

Repository: https://github.com/CURSED-ME/loopers-oss · Go · MIT · 55 stars

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