Monitoring LLM API Calls in Python: Latency, Token Usage, and Cost Tracking With OpenTelemetry

📰 Dev.to · Temitope

Monitor LLM API calls in Python to track latency, token usage, and cost with OpenTelemetry

intermediate Published 11 May 2026
Action Steps
  1. Install OpenTelemetry using pip with 'pip install opentelemetry-api'
  2. Configure OpenTelemetry to track LLM API calls by creating a tracer with 'tracer = opentelemetry.trace.get_tracer(__name__)'
  3. Use the tracer to track latency and token usage with 'tracer.start_span'
  4. Implement cost tracking by integrating with the LLM API's cost estimation API
  5. Visualize the tracked data using a dashboard like Prometheus or Grafana
Who Needs to Know This

Developers and DevOps teams can benefit from monitoring LLM API calls to optimize application performance and reduce costs

Key Insight

💡 Monitoring LLM API calls is crucial for optimizing application performance and reducing costs

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Monitor LLM API calls in Python with OpenTelemetry to track latency, token usage, and cost #LLM #OpenTelemetry #Python

Key Takeaways

Monitor LLM API calls in Python to track latency, token usage, and cost with OpenTelemetry

Full Article

LLM API calls are unlike any other external dependency in your Python application. A database query...
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