BerriAI/litellm · error · ValueError

Vector store list is not supported for {custom_llm_provider}

Error message

Vector store list is not supported for {custom_llm_provider}

What it means

Provider-support check when listing vector stores: ProviderConfigManager found no vector-store config for custom_llm_provider, so there is no list implementation to call.

Source

Thrown at litellm/vector_stores/main.py:708

            custom_llm_provider = "openai"

        if "/" in custom_llm_provider:
            api_type, custom_llm_provider, _, _ = get_llm_provider(
                model=custom_llm_provider,
                custom_llm_provider=None,
                litellm_params=None,
            )
        else:
            api_type = None
            custom_llm_provider = custom_llm_provider

        vector_store_provider_config: Final = ProviderConfigManager.get_provider_vector_stores_config(
            provider=litellm.LlmProviders(custom_llm_provider),
            api_type=api_type,
        )

        if vector_store_provider_config is None:
            raise ValueError(f"Vector store list is not supported for {custom_llm_provider}")

        litellm_logging_obj.update_from_kwargs(
            kwargs=kwargs,
            model=None,
            optional_params={
                "after": after,
                "before": before,
                "limit": limit,
                "order": order,
            },
            litellm_params={"litellm_call_id": litellm_call_id},
            custom_llm_provider=custom_llm_provider,
        )

        response: Final = base_llm_http_handler.vector_store_list_handler(
            after=after,
            before=before,
            limit=limit,

View on GitHub (pinned to 77b7c6c40c)

Solutions

1. Use a provider that supports listing vector stores, or implement it in a custom provider wrapper for {custom_llm_provider}.

When it happens

Trigger: Thrown at litellm/vector_stores/main.py:708 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of BerriAI/litellm@77b7c6c40c (2026-08-18). Data as JSON: /api/errors/750aae96a45ddda9. Report an issue: GitHub.