Open source Self-hostable MCP support free
LicenseMIT
Starting priceBYOK usage cost
Model supportclaude, gpt, gemini, byok
Languagespython, typescript
GitHub stars35.7k
Last activity2026-06-25
VerifiedThu Jun 25 2026 00:00:00 GMT+0000 (Coordinated Universal Time)
Verified byseed
A library for building stateful, multi-actor agents as graphs of nodes and edges with checkpointed state.
Strengths
- Explicit state graph suits complex workflows
- Checkpointing enables human-in-the-loop
Tradeoffs
- Steep learning curve
- Tied to the LangChain ecosystem