Documentation Index
Fetch the complete documentation index at: https://docs.uselemma.ai/llms.txt
Use this file to discover all available pages before exploring further.
No traces in Lemma
- Confirm startup instrumentation executed before app traffic.
- Verify
LEMMA_BASE_URLishttps://api.uselemma.ai/otel/v1/traces, andLEMMA_API_KEYandLEMMA_PROJECT_IDare set. - Confirm there are no network egress blocks to the Lemma OTLP endpoint.
Traces in Langfuse but not Lemma
- Verify the Lemma exporter is attached to
LangfuseSpanProcessor. - Validate request headers (
Authorization,X-Lemma-Project-ID). - Check for exporter errors in runtime logs.
Existing OTel traces not appearing in Lemma
- Confirm your existing OpenTelemetry-compatible instrumentation is creating spans.
- Confirm Lemma is configured as an OTLP trace export destination on your tracer provider or collector.
- Verify the Lemma endpoint and headers are set on that exporter.
Missing child spans
- Validate framework/provider instrumentation is enabled in Langfuse or your existing OpenTelemetry stack.
- Ensure instrumentation initializes before provider clients are instantiated.
Data appears delayed
- For short-lived/serverless handlers, call
forceFlush()at request end.

