infrastructure
Helicone
by Helicone
Helicone is an open-source LLM observability platform and AI gateway/reverse proxy that intercepts API requests to LLM providers — capturing logs, costs, and latency with under 1ms overhead in self-hosted mode. It integrates via a simple base URL swap (zero code changes), supports 12+ providers including OpenAI and Anthropic, and adds capabilities such as prompt caching, rate limiting, user tracking, and fine-tuning dataset creation. The gateway layer is written in Rust for minimal footprint (~64MB memory) and is available as a cloud-hosted SaaS or fully self-hostable.
8 Overall Score
Scores
Capability 7
Ease of Use 9
Documentation 8
Reliability 8
Value 9
Momentum 8
Details
- Status
- active
- Pricing
- freemium
- Launch Date
- Website
- https://www.helicone.ai/
- Last Updated
Key Features
- Zero-code integration via base URL swap supporting 12+ LLM providers
- Request logging with cost, latency, and token tracking per call
- Prompt and response caching to reduce costs and latency
- Rate limiting, user tracking, and custom metadata tagging
- Rust-powered gateway with sub-1ms overhead and ~64MB memory footprint; fully self-hostable