LangChain
by LangChain, Inc.🤖 AI AgentsOpen-source framework for LLM apps — chains, agents, RAG, LangGraph
Chains, agents, RAG, LangGraph, LangSmith tracing, open-source
Last updated: March 29, 2026 · Pricing verified from official sources. Prices are subject to change by the provider.
Pricing
Price stable
Free TierYes — open-source unlimited
Entry PlanFree (pay-as-you-go)
Team Plan—
EnterpriseCustom pricing
API PricingPython/JS SDK
See full API pricing & compare models →Prices exclude applicable taxes (VAT/GST/sales tax varies by region). Monthly prices shown — annual plans typically save 15-20%.
Specifications
Context / Input—
Max OutputLLM applications
ModalitiesText
Agent / AgenticNo
SecurityBasic
Self-hostedYes
LangChain — Who Is It Best For?
LLM app development, agent frameworks
Ideal for:Developers
✅ Strengths
• Free tier available
00• Chains
💭 Consider
0
• Limited security certifications
💡 Budget tip: Start with LangChain's free tier to test it. For a free alternative, check out CrewAI.
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Frequently Asked Questions
How much does LangChain cost?
LangChain offers a free tier. Team plans are $39/user/month. Enterprise pricing is available on request.
Is LangChain free?
Yes, LangChain offers a free tier with limited features. Contact sales for paid plan pricing.
What is LangChain best for?
LangChain is best for LLM app development, agent frameworks. Key features include: Chains, agents, RAG, LangGraph, LangSmith tracing, open-source.
Is LangChain right for you?
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AiToolsMentor.com · Pricing verified March 29, 2026 · AI Tools Mentor Fit Score