DownloadOpen source LLM-Observability Platform for Developers. One-line integration for monitoring, metrics, evals, agent tracing, prompt management, playground, etc. Supports OpenAI SDK, Vercel AI SDK, Anthropic SDK, LiteLLM, LLamaIndex, LangChain, and more.
Features
- One-line of code to log all your requests to OpenAI, Anthropic, LangChain, Gemini, TogetherAI, LlamaIndex, LiteLLM, OpenRouter, and more
- Inspect and debug traces & sessions for agents, chatbots, document processing pipelines, and more
- Track metrics like cost, latency, quality, and more. Export to PostHog in one-line for custom dashboards
- Rapidly test and iterate on prompts, sessions and traces in our UI
- Version and experiment with prompts using production data. Your prompts remain under your control, always accessible
- Automatically run evals on traces or sessions using the latest platforms: LastMile or Ragas (more coming soon)
Project Samples
License
Apache License V2.0Follow Helicone
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