loopview

Debug your AI agents as a live graph, whatever framework they're built with.

See which agent ran, what it thought, which tool failed, what it did next, and what it cost. LangGraph, Pydantic AI, CrewAI, the OpenAI Agents SDK or your own loop: one view, from standard OpenTelemetry, on your machine.

Live demo · Documentation

Try it

uvx loopview demo

Your browser opens on a recorded multi-agent run. No API key needed.

Watch your own agent

uvx loopview      # UI and OTLP endpoint on http://127.0.0.1:4318

In your agent's environment:

pip install loopview-sdk

import loopview_sdk

loopview_sdk.connect()  # at the start of your program

connect() switches on the OpenTelemetry instrumentation of every agent framework and model SDK it finds installed. Agents in other languages can send OTLP over HTTP to http://127.0.0.1:4318/v1/traces.

Which instrumentation package each framework needs, and everything else, is in the README on GitHub.