Helicone is the open-source LLM observability platform for developers to monitor, debug, and improve production-ready applications.


Ambertrace is described as 'LLM observability platform with an open source SDK that traces every AI agent call across OpenAI, Anthropic, and Google with zero code changes' and is an app. There are three alternatives to Ambertrace for Web-based, SaaS, Docker and Self-Hosted. The best Ambertrace alternative is Helicone. It's not free, so if you're looking for a free alternative, you could try Helicone or LLMCap.
Helicone is the open-source LLM observability platform for developers to monitor, debug, and improve production-ready applications.


LLMCap is a reverse proxy that enforces real-time, dollar-based spending caps on LLM API calls. When you hit your cap, the next request returns 429 — the token is never consumed and money is never spent.



Your AI bill is growing — but which customers, features, and pricing tiers are driving it? Most dashboards show totals. Totals don't help you decide who to charge more, what to gate, or where to cut.

