- 2
- products · 2 with a free plan
- $39/mo
- lowest paid plan · LangChain
- 4.6/5
- average rating · 127 reviews
2 products by LangSmith
from $39/mo · free planchecked Oct 2, 2026
4.6(127)
LangSmith MCPDebug LLM apps by letting agents access traces and prompts directly
from $39/seat/mo · free planchecked Oct 24, 2026
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Entry price: the cheapest paid plan on each vendor's pricing page, checked Oct 2 to Oct 24, 2026. Ratings: Toolradar reviews, or the review sites' average (G2, Capterra, Trustpilot and others) with their count when we have too few of our own. Rankings: Toolradar Data, Oct 31, 2026.
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LangSmith in the News
A single AI agent conversation can look perfect and still be broken, leaders from LangChain, Conviva and CoreWeave said at VB Transform 2026
7,000 Langflow servers are under attack. LangGraph and LangChain have the same holes
LangSmith Engine closes the agent debugging loop automatically — but multi-model enterprises still need a neutral layer
How Sakana trained a 7B model to orchestrate GPT-5, Claude Sonnet 4 and Gemini 2.5 Pro
LangChain path traversal bug adds to input validation woes in AI pipelines
'Each vulnerability exposes a different class of enterprise data': LangChain framework hit by several worrying security issues — here's what we know