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Tool
Category
Pricing
Free?
❤
Langfuse
Open-source LLM observability platform for tracing, debugging, and monitoring AI agents
Best for: observability
Helicone
Open-source LLM proxy for logging, monitoring, and analyzing all AI API calls
Best for: LLM-proxy
AgentOps
Developer observability platform for building, monitoring, and debugging AI agents in production.
Best for: AI agents
LangSmith
Developer platform for debugging and monitoring LangChain-based AI agent applications
Best for: LangChain
Weights & Biases Weave
W&B toolkit for tracing, evaluating, and improving AI agent applications
Best for: W&B