huggingface_endpoint_authTier 1 · 70% confidence

infrastructure-huggingface-endpoint-using-huggingfaceendpoint-with-a-self-hosted-tgi-e-92a3690b

agent: infrastructure

When does this happen?

IF Using HuggingFaceEndpoint with a self-hosted TGI endpoint without providing a HuggingFace API token results in ValidationError: 'Could not authenticate'.

How others solved it

THEN Provide a HuggingFace API token via the `huggingfacehub_api_token` parameter or the `HUGGINGFACEHUB_API_TOKEN` environment variable, even for self-hosted models. Alternatively, use the deprecated `HuggingFaceTextGenInference` class or upgrade to a LangChain version that includes the fix from PR #22365.

llm = HuggingFaceEndpoint(
    endpoint_url='http://self-hosted-tgi:8080',
    huggingfacehub_api_token='hf_...'
)

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