fix: pass api-version as default_query param, not in base_url — SDK was producing malformed URLs like /anthropic?api-version=.../v1/messages

This commit is contained in:
HangGlidersRule 2026-04-02 10:11:22 -04:00 committed by Teknium
parent 7bfa9442de
commit c15064fa37

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@ -390,7 +390,16 @@ def build_anthropic_client(api_key: str, base_url: str = None, timeout: float =
"timeout": Timeout(timeout=float(_read_timeout), connect=10.0),
}
if normalized_base_url:
kwargs["base_url"] = normalized_base_url
# Azure Anthropic endpoints require an ``api-version`` query parameter.
# Pass it via default_query so the SDK appends it to every request URL
# without corrupting the base_url (appending it directly produces
# malformed paths like /anthropic?api-version=.../v1/messages).
_is_azure_endpoint = "azure.com" in normalized_base_url.lower()
if _is_azure_endpoint and "api-version" not in normalized_base_url:
kwargs["base_url"] = normalized_base_url.rstrip("/")
kwargs["default_query"] = {"api-version": "2025-04-15"}
else:
kwargs["base_url"] = normalized_base_url
common_betas = _common_betas_for_base_url(normalized_base_url)
if _is_kimi_coding_endpoint(base_url):