Claude Agent SDK vs LangChain
Claude Agent SDK Anthropic
The agent loop behind Claude Code as a TypeScript and Python library, with tools, skills, MCP and subagents.
VisitSide by side
| Property | Claude Agent SDK | LangChain |
|---|---|---|
| Type | Product | Product |
| Category | AI agents and automation | AI agents and automation |
| Made by | Anthropic | LangChain |
| Pricing | Pay per use | Free |
| Open source | No | Yes |
| API | Yes | Yes |
| Platforms | API | API, Self-hosted |
| Startup | Yes | Yes |
Features
Only Claude Agent SDK
- mcp
- skills
- multi-agent
Both
- agent framework
Only LangChain
- rag
- observability