ujex-compliance-callback 0.1.1

Drop-in tamper-evident audit callbacks for LangChain, LangGraph, CrewAI, AutoGen, PydanticAI. Streams events into the Ujex hash-chained audit ledger (IETF draft-sharif-agent-audit-trail-00).

ujex-compliance-callback (Python)

Drop-in tamper-evident audit callbacks for AI agent frameworks. Streams events into a Ujex hash-chained ledger that satisfies IETF draft-sharif-agent-audit-trail-00 (AAT) and ISO/IEC 42005:2025 evidence requirements.

Resolves LangChain RFC #35691.

Install

pip install ujex-compliance-callback

LangChain / LangGraph

from langchain_openai import ChatOpenAI
from ujex_compliance_callback import UjexComplianceClient, UjexLangChainCallback

client = UjexComplianceClient(
    endpoint="https://us-central1-axy-ujex.cloudfunctions.net",
    device_key=os.environ["UJEX_DEVICE_KEY"],
    agent_id="my-agent",
    agent_version="1.4.2",
)
handler = UjexLangChainCallback(client)

llm = ChatOpenAI(callbacks=[handler])

CrewAI

from crewai.events import event_bus
from ujex_compliance_callback import UjexComplianceClient, UjexCrewAICallback

cb = UjexCrewAICallback(UjexComplianceClient(...))
event_bus.on("agent_execution_started", cb.on_agent_execution_started)
event_bus.on("tool_usage_started",     cb.on_tool_usage_started)
event_bus.on("tool_usage_finished",    cb.on_tool_usage_finished)

Verify the chain offline

pip install ujex-audit-chain
python -m ujex_audit_chain verify bundle.zip   # also accepts an extracted dir or records.jsonl

License

Apache-2.0.