Prometheus OTLP Metrics Receiver
Optional OpenTelemetry Protocol metrics receiver exposed on /api/v1/otlp/v1/metrics when the Prometheus server is started with --web.enable-otlp-receiver. Accepts OTLP/HTTP protobuf payloads from OpenTelemetry Collectors and SDKs; delta-to-cumulative conversion is available behind --enable-feature=otlp-deltatocumulative.