LangSmith from LangChain is an observability and testing platform for LLM apps and agents: it records every step of a run so you can debug prompts, evaluate outputs and monitor costs.
FREE
free, 5k traces/month
ScoviAI verdictDecent
Enough free tracing for a solo developer building an agent.
Our editors' take, not community votes.
About this offer
The Developer plan is free for one seat and includes 5,000 traces a month. Without a payment method you're capped at 5,000; with one, extra traces are billed pay-as-you-go.
How to claim this offer2 STEPS
- 1
- 2
Send up to 5,000 traces a month
Without a payment method you're capped at 5,000; with one, extra traces are pay-as-you-go.
Who is eligible?
One user per free Developer plan.
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