Anthropic PHP SDK v0.58.0 adds OpenTelemetry tracing by default
Anthropic released anthropic-sdk-php v0.58.0, enabling OpenTelemetry tracing for API calls by default. Each call emits a span once an application registers a tracer provider, and requests carry trace context headers such as traceparent. The release adds an open-telemetry/api dependency and options to disable tracing or header propagation. It also adds Managed Agents execution_identity and Admin API telemetry destinations.
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