Building a Local Router With Smart Fallbacks to Stop Rate Limits Killing Your AI Agents

phanue1 · reddit · 2026-09-14

A Reddit user shares a fix for AI agents crashing mid-task on API rate limits: route requests through 9router, which taps a large pool of free tokens for testing and provides zero-downtime fallbacks — when the primary model hits a limit, it instantly switches to a fallback model (e.g., Claude to GPT-4) so the agent keeps running. They also open-sourced a GitHub repo with a full Windows setup guide for wiring 9router into a Hermes agent.

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