added documentation that we only support gRPC endpoints (tensorzero#5043)

virajmehta · web-flow · commit dee5f59b54be · 2025-12-07T22:32:21.000Z
diff --git a/docs/operations/export-opentelemetry-traces.mdx b/docs/operations/export-opentelemetry-traces.mdx
@@ -46,6 +46,10 @@ export.otlp.traces.enabled = true
 
 Set the `OTEL_EXPORTER_OTLP_TRACES_ENDPOINT` environment variable in the gateway container to the endpoint of your OpenTelemetry service.
 
+<Note>
+TensorZero only supports gRPC endpoints for OTLP trace export. HTTP endpoints are not supported.
+</Note>
+
 <Accordion title="Example: TensorZero Gateway and Jaeger with Docker Compose">
 
 For example, if you're deploying the TensorZero Gateway and Jaeger in Docker Compose, you can set the following environment variable:
