reaatech/llm-cost-telemetry

These packages give you drop-in wrappers for OpenAI, Anthropic, and Google Generative AI SDKs that automatically capture token usage and cost from every API call, plus a cost calculation engine, multi-tenant aggregation and budget enforcement, OpenTelemetry observability, cloud exporters to CloudWatch/Cloud Monitoring/Loki, an MCP server, and a CLI. You'd adopt them to track, aggregate, and enforce budgets on LLM spend across providers and tenants without building your own cost telemetry pipeline. The packages are designed as independent modules that share common types and schemas, so you can use just the provider wrappers or combine them with the aggregation, budget checking, and export layers as needed.