Open-source LLM observability and AI gateway for monitoring and evaluation
Stars6,211
Commitjust now
LicenseApache-2.0
Helicone is an open-source observability platform and AI gateway for LLM applications. Teams point their existing OpenAI-compatible client at the Helicone gateway and every request is logged with traces, sessions, users, cost, and latency.
Open-source AI agent observability that finds failures and dispatches fixes
Stars4,718
Commitjust now
LicenseMIT
Latitude is an open-source, MIT-licensed observability platform for production AI agents, organized around an Observe, Understand, and Refine loop of tracing, failure signals, and guardrails.
Open-source LLM observability with request logging, cost tracking, and agent tracing
Stars13
Commitjust now
LicenseMIT
Spanlens is an MIT-licensed observability platform for OpenAI, Anthropic, and Gemini workloads with request logging, cost tracking, and agent tracing, added with a one-line change or a drop-in proxy.