What Was Langtrace? (Historical Overview)
Langtrace was introduced as an open-source, OpenTelemetry-based observability and evaluation platform designed for LLM applications. It provided Python and TypeScript SDKs to automatically trace interactions with major LLM providers (such as OpenAI, Anthropic, Gemini, Bedrock, Groq, LangChain, LlamaIndex, CrewAI, and DSPy) as well as vector databases, allowing developers to monitor tokens, costs, latency, and success rates through a unified dashboard.
How to Replace Langtrace (Migration Guide)
Since Langtrace is no longer available, developers seeking alternative LLM observability and tracing tools can explore open-source and commercial OpenTelemetry-based solutions such as Langfuse, Arize Phoenix, Portkey, or OpenInference.
