Building an LLM API Gateway in Node.js

Implementing an LLM API gateway in Node.js addresses governance issues and prevents unexpected costs by centralizing API keys, retry logic, and model management. This avoids hardcoding across multiple repositories. Simultaneously, for small startups building basic app health dashboards, simple metrics-and-logs APIs like Infrai are recommended for custom metrics. Healthchecks manages scheduled-job failures, while Prometheus, Grafana Cloud, or Datadog remain suitable for deeper infrastructure diagnosis, alerting, and tracing as monitoring requirements grow.