Plan: Free Restore access Get Pro · $10/mo or $99/yr

Deployment & observability for agents

Tracing, logging, hosting, and ops tooling tailored to LLM/agent workloads.

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Organic ranking

Free: overall score + blurb. Voice / Builder / Fresh columns unlock with Pro

# Tool Overall Voice Builder Fresh Pricing Categories
#1 LangSmith
Observability, evaluation, and deployment platform for LangChain/LangGraph agents.
7.10 0.0 0.0 0.0 freemium Deploy & observability, Eval & safety
#2 Arize Phoenix
Open-source AI observability and eval for traces, embeddings, and LLM apps.
6.75 0.0 0.0 0.0 freemium Deploy & observability, Eval & safety

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