Respan OpenLIT instrumentation

respan-instrumentation-openlit sends OpenLIT's native OpenTelemetry spans through the active Respan tracer provider and normalizes them to the Respan span contract. It does not wrap provider calls a second time, so enabling this plugin does not create a duplicate Respan span around each OpenLIT span.

Install

pip install respan-ai respan-instrumentation-openlit

Use

from respan import Respan
from respan_instrumentation_openlit import OpenLITInstrumentor

respan = Respan(
    api_key="...",
    instrumentations=[OpenLITInstrumentor(capture_content=True)],
)

Activation calls openlit.init() with the existing OpenTelemetry provider, metrics and events disabled, and an offline empty pricing file. OpenLIT therefore owns provider/framework patching while Respan owns export. Pass a custom pricing_json if OpenLIT cost calculation is required.

capture_content=False disables OpenLIT message capture and strips any content attributes from pre-existing OpenLIT spans before export. disabled_instrumentors is forwarded to OpenLIT and can be used to exclude selected libraries.

For OpenAI sync and async embedding calls, the adapter enriches OpenLIT native spans with every returned vector element in canonical traceloop.entity.output. The enrichment does not wrap provider methods or create another span, and it is disabled together with all other payload capture by capture_content=False.

Do not also enable a Respan provider instrumentation for the same client in the same process unless two nested provider spans are intentional. Deactivation only uninstruments OpenLIT instrumentors that this plugin activated; pre-existing OpenLIT instrumentation is preserved.