Day One iOS and Mac apps support URLs to send data into the apps from external sources.
Note: If you're using the Day One URL scheme in Terminal (or your preferred CLI app), you'll need to type "open" followed by the URL scheme. Also, if you have both Day One Classic and Day One 2.0 installed on the same device, the URL Scheme will route to Day One 2.0.
Create Entry with Text: dayone://post?entry=Hello Self
Create Entry with Tags: dayone://post?entry=Hello Self&tags=My Tag, Test
Create Entry in Journal: dayone://post?entry=Hello Self&journal=Day One
Create Entry with Clipboard Image: dayone://post?entry=Hello Self&imageClipboard=1
Edit Entry: dayone://edit?entryId=[UUID] (Don't include brackets.)
On this Day:
On This Day = dayone://thisday
Settings > Siri Shortcuts = dayone://siri
See Also: Day One Tools