Helicone

What is Helicone?

Helicone is an open-source observability platform for LLM applications. With a one-line integration, it logs every API call to OpenAI, Anthropic, and other providers — tracking latency, tokens, costs, and responses. The dashboard provides real-time analytics, user tracking, prompt versioning, and caching to reduce costs. It helps teams understand how their AI features perform in production, identify expensive prompts, and debug issues. The platform can be self-hosted or used as a managed service.

Key Features

Frequently Asked Questions