lookspan-langgraph 0.1.0

Lookspan adapter for LangChain / LangGraph — emits spans for chains, LLM calls, and tools.

lookspan-langgraph

Drop-in callback handler that streams every chain, LLM call, and tool invocation to your local Lookspan dashboard.

Install

pip install lookspan-langgraph

Quick start

from lookspan import LookspanClient
from lookspan_langgraph import LookspanCallbackHandler

client = LookspanClient(endpoint="http://127.0.0.1:3100/api/ingest")
handler = LookspanCallbackHandler(client=client, agent_id="my-agent")

# LangChain
result = chain.invoke({"input": "hello"}, config={"callbacks": [handler]})

# LangGraph
result = graph.invoke({"messages": []}, config={"callbacks": [handler]})

client.flush()