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Carbon
The analytics layer of AI
Know exactly what your AI is doing and what it costs. Carbon captures every LLM and tool call in 2 lines of code and turns it into a queryable ledger — cost over time, spend by model, heaviest users, tool failures, where agents stall. Every provider, 1,000 events free.
Top comment
Hi Product Hunt — Pranjal here. We started building with LLMs like everyone else: wire up a few providers, ship fast, watch it work. Then the bill came — one number, no story behind it. We couldn't tell which feature, which agent, or which user was driving it, and our logs were a million rows nobody wanted to read. The questions that actually decide the roadmap went unanswered: • Why did our AI bill double this month? • Which agent burned $300 last Tuesday? • Which model is actually cheapest for this task? We were optimizing our most expensive system blindly. So we built Carbon. How it works: • Wrap your existing client in 2 lines of code — every call is captured automatically • One ledger across every provider: OpenAI, Anthropic, Google, Vercel, Mistral, OpenRouter, DeepSeek and more • Drill into clusters — cost, models, your heaviest users, and where agents stall • Built for humans and the agents in your stack: we track tool calls, not just chat It's free forever for 1,000 events/month, no credit card. I'll be here all day. Tell me the one question about your AI you can never answer today, and I'll show you the Carbon view that answers it.
About Carbon on Product Hunt
“The analytics layer of AI”
Carbon was submitted on Product Hunt and earned 7 upvotes and 3 comments, placing #65 on the daily leaderboard. Know exactly what your AI is doing and what it costs. Carbon captures every LLM and tool call in 2 lines of code and turns it into a queryable ledger — cost over time, spend by model, heaviest users, tool failures, where agents stall. Every provider, 1,000 events free.
On the analytics side, Carbon competes within Analytics, Developer Tools and Artificial Intelligence — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how Carbon performed against the three products that launched closest to it on the same day.
Who hunted Carbon?
Carbon was hunted by Pranjal. 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.
For a complete overview of Carbon including community comment highlights and product details, visit the product overview.