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OpenAPI authenticates requests using an account’s Access Key. The management page is called API Keys, and the request header is AccessKey.

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Create an Access Key

  1. Sign in to Chaintable and switch to the account whose units you will use.
  2. Open API Keys from the account menu and click New Key.
  3. Enter a descriptive name, such as analytics-service, and click Generate key.
  4. Copy the generated Key into an application environment variable or secret manager.
Name input and Generate key button in the New Key dialog
A Key represents its owning account. Calls across multiple Keys share that account’s quota. Keep real Keys out of repositories, public documentation, and browser frontend code.

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Pass the Key in requests

Set CHAINTABLE_ACCESS_KEY to the real value in your environment, then query remaining account units:
A successful request returns HTTP 200 with code set to success. data contains the remaining units as monthly_units and addon_units.

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Manage and replace Keys

API Keys shows names and masked values. To replace an application’s Key, create a new one, update application configuration, verify requests, then delete the old Key.
API Keys list with names, masked values, and delete controls
Click the Key’s delete icon and confirm with Delete. Deletion cannot be undone. Once deleted, the Key disappears from the list. See Calling functions for Function request formats.