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LangWatch integrates with Anthropic through OpenInference instrumentation to capture detailed information about your Claude API calls.

Installation

Usage

The LangWatch API key is configured by default via the LANGWATCH_API_KEY environment variable.
Use the OpenInference instrumentation for Anthropic by passing AnthropicInstrumentor to langwatch.setup().
The AnthropicInstrumentor automatically captures all Anthropic API calls globally once instrumented. Use @langwatch.trace() to create a parent trace under which API calls will be nested.