See what your agents
are actually doing

3 lines of code. Full traces, costs, and errors — visible in seconds. Stop flying blind.

Three steps to full observability

5 minutes to your first trace.

Add the SDK to your project

npm install @trefur/observe
# or
pip install trefur-observe
# or
go get github.com/trefur/observe-go

One call. Your agent is traced automatically.

from trefur_observe import TrefurObserve

trefur = TrefurObserve(api_key="trf_live_...")
trefur.instrument()

Every run traced with full context

# Visit app.trefur.com to see traces

See every decision your agent makes — inputs, outputs, timing, and context.

Know what you're spending per agent, per request, per model.

Full stack traces and context when things break.

Find the bottleneck in your agent chain. Optimize what's slow.

Get notified when agent performance degrades or errors spike.

Python, JavaScript, and Go SDKs. Get started in minutes regardless of your setup.

Initialize the SDK and your agent is traced. No manual spans. No complex setup.

terminal

Start with full agent observability today.