API Keys allow you to connect Crono with external tools and automations. They are required for all integrations that communicate with the Crono External API.
API Keys are available only for workspaces on the Ultra plan.
If your workspace is not on Ultra, the API section will not appear.
The API settings page is visible only to workspace Managers.
Members without Manager permissions cannot view or generate API keys.
Open Crono.
Go to Account Settings.
Select Integrations.
Click on API.

If you do not see the API tab:
Confirm that your workspace is on the Ultra plan.
Confirm that your user role is Manager.
Click Generate API Key.
A modal will appear asking for a name.
Click Generate.

Crono will create:
Public API Key
Private API Key

Both keys must be used for authenticated requests.
After creation:
Click the copy icon next to each key.
Keys remain visible at:
Account Settings → Integrations → API
Crono does not mask or hide keys after generation, so you can re-copy them whenever needed.
You can create up to 5 active API keys per workspace.
To create more, delete old or unused keys.
API keys let you connect Crono with any platform capable of sending HTTP requests. Common integrations include:
n8n
Zapier
Make
Unify
Freckle
Clay
Attio
Folk
Monday
Custom scripts and backend servers
Any other automation or data tool that supports HTTP APIs
The API is fully flexible. You can build almost any workflow - creativity is the only limit.
Treat your Private API Key like a password.
Never expose API keys in public repositories or client-side code.
If a key is compromised, delete it and create a new one.
Periodically rotate keys for high-sensitivity integrations.