Acquire an API key for data retrieval
- Last UpdatedOct 03, 2025
- 2 minute read
When you use token authentication for data retrieval requests, you must specify a bearer token in the authorization header. In most cases, you will use an API key as that token.
API keys never expire and may need to be renewed, especially if you suspect they are no longer secure. You can renew them from the OData page.
To generate an authorization key
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Select Administration from the navigation rail.
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Select Historian Data REST API.
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In the API Key Authentication box, select
.
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In the Add API Key dialog box, type a name for the new authorization key and select Add.
The Edit API Key dialog box displays your API key .
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Select
to copy the API key to the Clipboard.
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Paste this as the bearer token in the authorization header of your retrieval request.
To renew an API key
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Navigate to Administration.
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Select Integration Settings.
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Select Historian Data REST API.
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To the right of the key, select
,and then select Edit.
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Select
.
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Select Renew.