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Once the API key exists you can add that key to a dataset to enable data publication and data access. This is done in the dataset page, in the shared with Shared With section and API key Key selection.
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Follow the set up and add the API key you want to the dataset. Once shared the API Key user can use the tool in a variety of ways:
Adding data with an API key (live data writer)
Consuming data with an API key
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