feat: add User-Agent header for Anthropic API calls#4500
feat: add User-Agent header for Anthropic API calls#4500mikelambert wants to merge 1 commit intocrewAIInc:mainfrom
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Passes User-Agent: crewai/{version} to the Anthropic SDK
so Anthropic can identify traffic from CrewAI.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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| "base_url": self.base_url, | ||
| "timeout": self.timeout, | ||
| "max_retries": self.max_retries, | ||
| "default_headers": {"User-Agent": f"crewai/{__version__}"}, |
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Custom User-Agent replaces Anthropic SDK's built-in User-Agent
Low Severity
Setting User-Agent via default_headers completely replaces the Anthropic SDK's built-in User-Agent header (typically Anthropic/Python x.y.z), because the SDK merges _custom_headers last via dictionary unpacking. The PR goal is to improve debugging and traffic attribution, but this actually removes the SDK version info that Anthropic uses for diagnostics. A different header name (e.g., X-CrewAI-Version) would add identification without losing the SDK's own User-Agent.
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Summary
User-Agent: crewai/<version>header to Anthropic API client paramsWhy
This enables Anthropic to identify traffic from CrewAI integrations, improving debugging and traffic attribution for both Anthropic and CrewAI users.
Test plan
ruff checkpassesruff formatpasses🤖 Generated with Claude Code
Note
Low Risk
Small, well-tested change limited to HTTP client header construction for Anthropic requests; low likelihood of regressions beyond header merging behavior.
Overview
Adds a default
User-Agent: crewai/<version>header to Anthropic SDK client initialization via_get_client_params().Updates client param merging to deep-merge
default_headersso the newUser-Agentis retained even when callers supply their own headers, and extends unit tests to assert the header is present across custom/override/none cases (plus a new dedicated test).Written by Cursor Bugbot for commit 054b01a. This will update automatically on new commits. Configure here.