Helicone

AI observability platform for monitoring and debugging LLM applications

Code & DevelopmentFreemium

Helicone is a developer-first AI observability platform that proxies your OpenAI, Anthropic, and other LLM API calls to automatically log requests, track costs, monitor latency, and catch errors. With a single line of code change, teams get full visibility into their LLM usage with user-level analytics and prompt playground.

Key Features

• ✓One-line setup proxy integration
• ✓Cost and usage tracking
• ✓Request/response logging
• ✓User-level analytics
• ✓Prompt testing playground
• ✓Rate limiting and caching