datadog
Datadog
Datadog is a leading SaaS observability platform. In 2025, it focuses on AI Observability (monitoring LLMs) and automated remediation with Watchdog.
When to Use
- SaaS Convenience: You want a complete solution (APM, Logs, Infra) without managing storage.
- Full Stack Visibility: Frontend RUM (Real User Monitoring) connected to Backend Traces connected to DB Metrics.
- AI Apps: Monitor token usage, latency, and costs of LLM calls.
Quick Start
Install Agent:
DD_API_KEY=... bash -c "$(curl -L https://s3.amazonaws.com/dd-agent/scripts/install_script.sh)"
Enable APM (e.g. Node.js):
DD_TRACE_AGENT_URL=http://localhost:8126 node --require dd-trace/init app.js
Core Concepts
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