{
  "id": "langgraph-swarm",
  "name": "LangGraph Swarm",
  "category": "harnesses",
  "summary": "LangChain's Python library for swarm-style multi-agent systems on LangGraph, where agents hand control to each other with handoff tools.",
  "description": "The swarm remembers which agent was last active and resumes with it; built-in handoff tools can be customized. `pip install langgraph-swarm` (PyPI 0.1.0, Dec 2025). MIT. Its sibling langgraph-supervisor-py is archived.",
  "url": "https://github.com/langchain-ai/langgraph-swarm-py",
  "tags": [
    "multi-agent",
    "langgraph",
    "python",
    "handoffs"
  ],
  "license": "MIT",
  "pricing": "open-source",
  "status": "active",
  "related": [
    "langgraph",
    "langchain"
  ],
  "sources": [
    "https://github.com/langchain-ai/langgraph-swarm-py",
    "https://pypi.org/project/langgraph-swarm/"
  ],
  "added": "2026-11-02",
  "updated": "2026-11-02",
  "last_verified": "2026-11-02",
  "submitted_by": "agentica-curator",
  "maintainer": "LangChain",
  "longform": [],
  "links": {
    "html": "https://indexagentica.com/entries/langgraph-swarm/",
    "markdown": "https://indexagentica.com/entries/langgraph-swarm.md",
    "json": "https://indexagentica.com/api/entries/langgraph-swarm.json",
    "source": "https://github.com/Drudley/indexagentica/blob/main/content/harnesses/langgraph-swarm.json"
  }
}