BerriAI/litellm · error · ValueError

Milvus API base URL is required. Set MILVUS_API_BASE environ

Error message

Milvus API base URL is required. Set MILVUS_API_BASE environment variable or pass api_base in litellm_params.

What it means

Error "Milvus API base URL is required. Set MILVUS_API_BASE environment variable or pass api_base in litellm_params." thrown in BerriAI/litellm.

Source

Thrown at litellm/llms/milvus/vector_stores/transformation.py:108

        for param, value in non_default_params.items():
            if param in MILVUS_OPTIONAL_PARAMS:
                optional_params[param] = value
        return optional_params

    def get_complete_url(
        self,
        api_base: str | None,
        litellm_params: dict,
    ) -> str:
        """
        Get the base endpoint for Milvus API

        Expected format: https://{milvus_api_base}.milvus.io
        """
        api_base = api_base or get_secret_str("MILVUS_API_BASE")

        if not api_base:
            raise ValueError(
                "Milvus API base URL is required. Set MILVUS_API_BASE environment variable or pass api_base in litellm_params."
            )

        if api_base:
            return api_base.rstrip("/")

        return api_base

    def transform_search_vector_store_request(
        self,
        vector_store_id: str,
        query: str | list[str],
        vector_store_search_optional_params: VectorStoreSearchOptionalRequestParams,
        api_base: str,
        litellm_logging_obj: LiteLLMLoggingObj,
        litellm_params: dict,
        extra_body: dict[str, Any] | None = None,
    ) -> tuple[str, dict[str, Any]]:

View on GitHub (pinned to 6c2dcb801b)

Solutions

1. Set MILVUS_API_BASE or pass api_base in litellm_params.

When it happens

Trigger: Thrown at litellm/llms/milvus/vector_stores/transformation.py:108 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of BerriAI/litellm@6c2dcb801b (2026-08-15). Data as JSON: /api/errors/d4acd7db59c41311. Report an issue: GitHub.