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[ARTICLE · art-58723] src=discuss.huggingface.co ↗ pub= topic=ai-tools verified=true sentiment=↓ negative

Dataset Viewer API returning 503 Service Temporarily Unavailable for all datasets

Hugging Face's Dataset Viewer API is returning a 503 Service Temporarily Unavailable error for all datasets, as reported by a user testing the endpoint https://datasets-server.huggingface.co/is-valid?dataset=gbharti/finance-alpaca. The user confirmed the issue affects the datasets-server service broadly, not a specific dataset configuration.

read1 min views52 publishedJul 14, 2026

Hello Hugging Face team,

The Dataset Viewer appears to be unavailable for me across all datasets.

I am getting the following error when accessing the Dataset Viewer API:

https://datasets-server.huggingface.co/is-valid?dataset=gbharti/finance-alpaca Response:

503 Service Temporarily Unavailable

Unexpected token ‘<’, “…” is not valid JSON

I have tested:

gbharti/finance-alpaca

)The issue appears to affect the Dataset Viewer service rather than a specific dataset configuration.

Could someone confirm if there is an ongoing issue with datasets-server

or guide troubleshooting?

Thanks.

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