Helicone

Open source LLM observability platform for logging, monitoring, and debugging

Growing steadily this week

7d +0.26% +16 stars in 7d

30d +1.1% +67 stars in 30d

90d Not tracked yet — first tracked 2026-08-14

6,065 → 6,226 stars since Aug 14

6,102 Stars 684 Forks 170 Open issues

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agent-monitoring analytics evaluation gpt langchain large-language-models llama-index llm llm-cost llm-evaluation llm-observability llmops monitoring open-source openai playground prompt-engineering prompt-management ycombinator