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smolagents agents are instrumented by the OpenInference smolagents instrumentor, which captures agent steps, model calls, and tool calls as OTLP spans. Point the exporter at AgentMark and the traces arrive normalized. smolagents is a Python framework.

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Setup

1

Install the instrumentor and the OTLP exporter

pip install openinference-instrumentation-smolagents \
  opentelemetry-sdk opentelemetry-exporter-otlp-proto-http
2

Point the exporter at AgentMark and instrument smolagents

Use your AgentMark API key and app id from project settings.
from openinference.instrumentation.smolagents import SmolagentsInstrumentor
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import BatchSpanProcessor
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter

provider = TracerProvider()
provider.add_span_processor(
    BatchSpanProcessor(
        OTLPSpanExporter(
            endpoint="https://api.agentmark.co/v1/traces",
            headers={
                "Authorization": "<YOUR_API_KEY>",  # raw key, no "Bearer" prefix
                "X-Agentmark-App-Id": "<YOUR_APP_ID>",
            },
        )
    )
)

SmolagentsInstrumentor().instrument(tracer_provider=provider)
3

Run your agent

Run your smolagents agent as usual. Each step, model call, and tool call arrives in AgentMark as a span, grouped into a trace. See Traces and logs.

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What AgentMark captures

smolagents spans use the OpenInference attribute conventions — model, token usage, input and output messages, tool calls, settings, and span kind are all mapped onto AgentMark’s normalized trace fields, and token counts feed cost tracking. See OpenInference for the full attribute mapping.

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Next steps

OpenInference

How AgentMark reads OpenInference attributes

Traces and logs

Explore traces once they arrive

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Have questions?

Reach out any time: