# Monitoring & Observability — Agent Architecture Layer

> Trace, evaluate, and debug agent runs in production

2 tools mapped to this layer of an AI agent architecture.

This is one layer of an [AI agent architecture](https://www.frameworkr.ai/blog/what-is-an-ai-agent-architecture.md), not a standalone product category. Design the blueprint first, then pick tools.

- [Helicone](https://www.frameworkr.ai/tools/helicone.md): Lightweight LLM proxy for logging, cost tracking, and caching with zero code changes
- [Langfuse](https://www.frameworkr.ai/tools/langfuse.md): Open-source LLM observability — trace every agent run, score outputs, and catch regressions


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_Frameworkr — https://www.frameworkr.ai_