OpenInference smolagents Instrumentation

pypi

Python auto-instrumentation library for LLM agents implemented with smolagents

Crews are fully OpenTelemetry-compatible and can be sent to an OpenTelemetry collector for monitoring, such as Arize Phoenix or Arize AX.

Installation

pip install openinference-instrumentation-smolagents

Quickstart

This quickstart shows you how to instrument your LLM agent application.

You've already installed openinference-instrumentation-smolagents. Next is to install packages for smolagents, Phoenix and opentelemetry-instrument, which exports traces to it.

pip install smolagents arize-phoenix opentelemetry-sdk opentelemetry-exporter-otlp-proto-grpc opentelemetry-distro

Start Phoenix in the background as a collector, which listens on http://localhost:6006 and default gRPC port 4317. Note that Phoenix does not send data over the internet. It only operates locally on your machine.

python -m phoenix.server.main serve

Create an example like this:

from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel

agent = CodeAgent(tools=[DuckDuckGoSearchTool()], model=HfApiModel())

agent.run("How many seconds would it take for a leopard at full speed to run through Pont des Arts?")

Then, run it like this:

opentelemetry-instrument python example.py

Finally, browse for your trace in Phoenix at http://localhost:6006!

Manual instrumentation

opentelemetry-instrument is the Zero-code instrumentation approach for Python. It avoids explicitly importing and configuring OpenTelemetry code in your main source. Alternatively, you can copy-paste the following into your main source and run it without opentelemetry-instrument.

from opentelemetry.sdk.trace import TracerProvider

from openinference.instrumentation.smolagents import SmolagentsInstrumentor
from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import OTLPSpanExporter
from opentelemetry.sdk.trace.export import SimpleSpanProcessor

otlp_exporter = OTLPSpanExporter(endpoint="http://localhost:4317", insecure=True)
trace_provider = TracerProvider()
trace_provider.add_span_processor(SimpleSpanProcessor(otlp_exporter))

SmolagentsInstrumentor().instrument(tracer_provider=trace_provider)

More Info

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Credits

Author: OpenInference Authors

GitHub Statistics

Data verified by PyPI on Aug 7, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

Apache-2.0
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Requires

Python <3.15, >=3.10

Provides Extra

instruments

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