OpenLLMetry
Observability & evalsAn open-source set of OpenTelemetry extensions for standardized LLM observability.
OpenLLMetry, from Traceloop, extends OpenTelemetry — the industry standard for tracing — to cover LLM applications. Because the data is standard OTel, it flows into whatever observability backend you already run.
The pitch is no lock-in: instrument once with an open standard, and send the traces wherever you like.
Where it's ideally used
A fit when you want LLM tracing as standard OpenTelemetry data, feeding an observability backend you already use.
Where it doesn't fit
An instrumentation layer, not a destination — you still need a backend to store and view the traces.