This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
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
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 feedback — is this solving a real problem for you? What would you add?
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About Farol on Product Hunt
“AI agent observability. One decorator, that's it.”
Farol was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #160 on the daily leaderboard. 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
Farol was featured in Open Source (68.4k followers), Developer Tools (511.7k followers), Artificial Intelligence (467.3k followers) and GitHub (41.2k followers) on Product Hunt. Together, these topics include over 188.4k products, making this a competitive space to launch in.
Who hunted Farol?
Farol was hunted by Hugo Apolinário. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Farol stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Hugo Apolinário
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 feedback — is this solving a real problem for you? What would you add?