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Hugo Apolinárioleft a comment
Hey Product Hunt! 👋 I built Farol after noticing a gap in the market — there were no lightweight, solo-dev-friendly monitoring tools for AI agents. Everything was either enterprise-grade overkill or required complex setup. Farol is one decorator, zero infrastructure changes, and it tells you automatically when something goes wrong — cost spikes, quality drops, latency issues. Would love honest...
FarolAI agent observability. One decorator, that's it.
AI agents fail silently and bill loudly. Farol tells you first.
Add @trace to your agent and instantly get cost anomaly detection, full trace inspector, quality scoring, regression alerts, budget limits per agent, and a weekly digest email.
No gateway. No proxy. No framework lock-in. Works with Anthropic, OpenAI, Gemini, LangChain, CrewAI, and more.
Free tier · Open source SDK · From €20/mo
FarolAI agent observability. One decorator, that's it.