csharp changedcli-sdks-libraries/sdks/csharp
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### OpenTelemetry tracing
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403403export ANTHROPIC_LOG=debug
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406### OpenTelemetry tracing
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408When your application adds the SDK's sources to its OpenTelemetry tracer provider with `AddSource("com.anthropic.sdk.csharp*")`, the SDK emits a span for each request that it sends. To send the spans to your observability platform, see [Set up OpenTelemetry with the Claude SDK](https://platform.claude.com/docs/en/manage-claude/opentelemetry/sdk).
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406410### Undocumented API functionality
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408412The SDK is typed for convenient usage of the documented API. However, it also supports working with undocumented or not yet supported parts of the API.
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