BerriAI/litellm · error · ValueError

MILVUS_API_KEY is not set. Either set it in the litellm_para

Error message

MILVUS_API_KEY is not set. Either set it in the litellm_params or set the MILVUS_API_KEY environment variable.

What it means

Error "MILVUS_API_KEY is not set. Either set it in the litellm_params or set the MILVUS_API_KEY environment variable." thrown in BerriAI/litellm.

Source

Thrown at litellm/llms/milvus/vector_stores/transformation.py:56

class MilvusVectorStoreConfig(BaseVectorStoreConfig):
    """
    Configuration for Milvus Vector Store

    This implementation uses the Azure AI Search API for vector store operations.
    Supports vector search with embeddings generated via litellm.embeddings.
    """

    def __init__(self):
        super().__init__()

    def validate_environment(self, headers: dict, litellm_params: GenericLiteLLMParams | None) -> dict:
        api_key: str | None = None
        if litellm_params is not None:
            api_key = litellm_params.api_key or get_secret_str("MILVUS_API_KEY")

        if not api_key:
            raise ValueError(
                "MILVUS_API_KEY is not set. Either set it in the litellm_params or set the MILVUS_API_KEY environment variable."
            )

        headers.update({"Authorization": f"Bearer {api_key}"})

        return headers

    def get_auth_credentials(self, litellm_params: dict) -> BaseVectorStoreAuthCredentials:
        api_key: Final = litellm_params.get("api_key")
        if not api_key:
            raise ValueError(
                "MILVUS_API_KEY is not set. Either set it in the litellm_params or set the MILVUS_API_KEY environment variable."
            )
        return {
            "headers": {
                "Authorization": f"Bearer {api_key}",
            },
        }

View on GitHub (pinned to 6c2dcb801b)

Solutions

1. Set MILVUS_API_KEY in litellm_params or the environment.

When it happens

Trigger: Thrown at litellm/llms/milvus/vector_stores/transformation.py:56 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/81c859d776373a6d. Report an issue: GitHub.