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The OpenInference Anthropic instrumentor traces every call made with the Anthropic Python SDK (model, token usage, messages, and tool calls) as OTLP spans.

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Setup

1

Install the instrumentor and the OTLP exporter

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

Point the exporter at AgentMark and instrument Anthropic

Use your AgentMark API key and app id from project settings.
from openinference.instrumentation.anthropic import AnthropicInstrumentor
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>",
            },
        )
    )
)

AnthropicInstrumentor().instrument(tracer_provider=provider)
3

Run your calls

Use the Anthropic client as usual, with client.messages.create(...). Each call arrives in AgentMark as a span, grouped into a trace. See Traces and logs.

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What AgentMark captures

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: