diff --git a/exporters/otlp/otlpmetric/otlpmetricgrpc/doc.go b/exporters/otlp/otlpmetric/otlpmetricgrpc/doc.go
index 439bedc3cfd..0674e5e956e 100644
--- a/exporters/otlp/otlpmetric/otlpmetricgrpc/doc.go
+++ b/exporters/otlp/otlpmetric/otlpmetricgrpc/doc.go
@@ -28,6 +28,14 @@ The value should not contain a query string or fragment.
 OTEL_EXPORTER_OTLP_METRICS_ENDPOINT takes precedence over OTEL_EXPORTER_OTLP_ENDPOINT.
 The configuration can be overridden by [WithEndpoint], [WithInsecure], [WithGRPCConn] options.
 
+OTEL_EXPORTER_OTLP_INSECURE, OTEL_EXPORTER_OTLP_METRICS_INSECURE (default: "false") -
+setting "true" disables client transport security for the exporter's gRPC connection.
+You can use this only when an endpoint is provided without the http or https scheme.
+OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_METRICS_ENDPOINT setting overrides
+the scheme defined via OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_METRICS_ENDPOINT.
+OTEL_EXPORTER_OTLP_METRICS_INSECURE takes precedence over OTEL_EXPORTER_OTLP_INSECURE.
+The configuration can be overridden by [WithInsecure], [WithGRPCConn] options.
+
 OTEL_EXPORTER_OTLP_HEADERS, OTEL_EXPORTER_OTLP_METRICS_HEADERS (default: none) -
 key-value pairs used as gRPC metadata associated with gRPC requests.
 The value is expected to be represented in a format matching to the [W3C Baggage HTTP Header Content Format],
diff --git a/exporters/otlp/otlptrace/otlptracegrpc/doc.go b/exporters/otlp/otlptrace/otlptracegrpc/doc.go
index d2c3f87fc33..7e1b2827790 100644
--- a/exporters/otlp/otlptrace/otlptracegrpc/doc.go
+++ b/exporters/otlp/otlptrace/otlptracegrpc/doc.go
@@ -28,6 +28,14 @@ The value should not contain a query string or fragment.
 OTEL_EXPORTER_OTLP_TRACES_ENDPOINT takes precedence over OTEL_EXPORTER_OTLP_ENDPOINT.
 The configuration can be overridden by [WithEndpoint], [WithInsecure], [WithGRPCConn] options.
 
+OTEL_EXPORTER_OTLP_INSECURE, OTEL_EXPORTER_OTLP_TRACES_INSECURE (default: "false") -
+setting "true" disables client transport security for the exporter's gRPC connection.
+You can use this only when an endpoint is provided without the http or https scheme.
+OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_TRACES_ENDPOINT setting overrides
+the scheme defined via OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_TRACES_ENDPOINT.
+OTEL_EXPORTER_OTLP_TRACES_INSECURE takes precedence over OTEL_EXPORTER_OTLP_INSECURE.
+The configuration can be overridden by [WithInsecure], [WithGRPCConn] options.
+
 OTEL_EXPORTER_OTLP_HEADERS, OTEL_EXPORTER_OTLP_TRACES_HEADERS (default: none) -
 key-value pairs used as gRPC metadata associated with gRPC requests.
 The value is expected to be represented in a format matching to the [W3C Baggage HTTP Header Content Format],