Track LLM token usage by user, session and model without a metric label for every user. Prometheus or any OTLP metrics backend.
golang mcp grafana prometheus self-hosted observability ai-agents opentelemetry opentelemetry-collector otlp genai token-usage litellm high-cardinality llm-observability llm-cost agent-observability token-accounting llm-telemetry cardinality-explosion
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Updated
Oct 16, 2026 - Go