Open source Self-hostable MCP support free
In these stacks
LicenseMIT
PriceFree
UsageBYOK
Model supportclaude, gpt, gemini, byok
Languagespython, typescript
GitHub stars36.4k
Last activity2026-07-03
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