OpenTelemetry Has a Free Observability SDK You Probably Didn't Know About

OpenTelemetry is the #2 most active CNCF project (after Kubernetes). Yet most developers still cobble together custom logging, metrics, and traces with incompatible tools. Here's what most people miss: OpenTelemetry gives you a vendor-neutral, production-grade observability SDK — completely free, open-source, and backed by every major cloud provider. What OpenTelemetry Actually Gives You (Free) 1. Unified Traces, Metrics & Logs import { trace } from " @opentelemetry/api " ; const tracer = trace . getTracer ( " my-service " ); const span = tracer . startSpan ( " process-order " ); span . setAttribute ( " order.id " , orderId ); span . setAttribute ( " order.total " , 149.99 ); // ... your business logic span . end (); One SDK. Three signals. Every backend. 2. Auto-Instrumentation (Zero Code Changes) npm install @opentelemetry/auto-instrumentations-node const { NodeSDK } = require ( " @opentelemetry/sdk-node " ); const { getNodeAutoInstrumentations } = require ( " @opentelemetry/auto-ins