LangChain is the leading open-source platform for building AI agents and LLM applications, trusted by 1M+ developers worldwide. The platform provides a comprehensive suite of tools including LangGraph for orchestration, LangSmith for evaluation and monitoring, and LangGraph Platform for deployment. With 600+ integrations, 130M+ downloads, and adoption by major enterprises like Google, Microsoft, and Klarna, LangChain simplifies the entire AI development lifecycle from prototype to production. The framework supports complex workflows, human-in-the-loop systems, and reliable agent deployment at scale.
LangChain
AI ToolFreemiumOpen-source orchestration framework for building reliable AI agents and LLM applications with production-grade deployment tools.
Last updated:
Key Features & Benefits
- LangChain is a development solution designed for professional environments
- Suitable for businesses looking to integrate AI capabilities
- Pricing model: Freemium - making it accessible for both personal and professional use
- Part of our curated Development directory with 3+ specialized features
About LangChain
Key Features
Open-source framework with 600+ integrations and 130M+ downloads
LangGraph for sophisticated agent orchestration and multi-agent workflows
LangSmith for production monitoring with 1B+ trace logs and evaluations
Multiple programming language support (Python and JavaScript)
Enterprise-grade deployment with LangGraph Platform and human-in-the-loop
Comprehensive RAG capabilities with 150+ document loaders and vector stores
Production-ready templates and reference architectures for rapid deployment
Advanced agent memory, persistence, and streaming functionality
Pricing Plans
Enterprise
Custom pricing
- Everything in Plus plan included
- Single Sign-On (SSO) and enterprise security
- Self-hosting and BYOC deployment options
- Custom rate limits and SLA guarantees
- Dedicated customer success manager
- Team training and architectural guidance
- Private Slack channel support
- 24/7 enterprise-grade support
LangSmith Plus
$39/user/month
- 10K traces per month included
- Advanced evaluation and testing tools
- Team collaboration up to 10 seats
- Higher rate limits and priority processing
- Dedicated email support
- Advanced prompt management and versioning
- Bulk data export capabilities
- Pay-as-you-go scaling for additional usage
LangSmith Developer
$0/month
- 5K traces per month included
- Application debugging and monitoring
- Dataset creation and management
- Basic evaluation tools
- Pay-as-you-go for additional usage
- Community support
LangChain Open Source
$0/month
- Complete open-source framework access
- 600+ integrations with major LLM providers
- Python and JavaScript libraries
- Community templates and documentation
- GitHub community support
- Unlimited local development usage
Pricing information last updated: July 6, 2025
Explore More AI Tools
Botpress
Botpress is an open-source AI agent platform that combines visual flow building with advanced LLM integrations to create sophisticated conversational AI experiences for developers and enterprises.
Docker
AI-powered containerization platform with intelligent automation, streamlined development workflows, and the revolutionary Docker AI Agent for enhanced container management and deployment optimization.
Cursor
AI-powered code editor built for extraordinary productivity with intelligent code completion, natural language editing, and codebase understanding.
Retool
Retool is the leading low-code platform featuring AI-powered workflow automation, intelligent component suggestions, and smart data integrations to build internal tools and applications 10x faster than traditional development.