VoltAgent provides a TypeScript framework and engineering platform for building AI agents.
Open source
24 alternativesLangChain
LangChain provides an open agent engineering platform for building and governing AI applications.
About LangChain
LangChain is an open agent engineering platform designed to help users build, control, and govern AI applications. It offers the LangSmith platform to support every step of the agent development lifecycle, and serves a large global builder community with over 350 million monthly open source downloads, more than 7,000 active LangSmith customers, and 5 Fortune 10 companies as LangSmith clients.
Key features
- Open agent engineering platform for AI application development
- Governance and control tools for AI application intelligence
- LangSmith platform for full agent development lifecycle support
- Support for multiple AI application use case categories
Best for: Companies and developers building, controlling, and governing AI agent applications benefit most from LangChain.
Good for
- Large, active global AI builder community
- Over 350 million monthly open source downloads
- 5 Fortune 10 companies and 7,000+ active LangSmith customers
LangChain at a glance
- Website
- langchain.com
- Category
- AI & Machine Learning › AI Agent Frameworks
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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LangChain FAQ
What is LangChain's core platform offering?
LangChain provides an open agent engineering platform for building and governing AI applications.
What is LangSmith?
LangSmith is LangChain's agent engineering platform that improves every step of the agent development lifecycle.
What is LangChain's user base size?
LangChain has over 350 million monthly open source downloads, more than 7,000 active LangSmith customers, and 5 Fortune 10 companies as LangSmith clients.
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