When you have a base open in a compatible web browser, you should see a URL in the address bar that looks similar to this (Google Chrome):
In between each backslash, you will find a string that identifies the Base, Table, and View IDs.
- Base IDs begin with "app"
- Table IDs begin with "tbl"
- View IDs begin with "viw"
If you were to click to another table or another view within this same base, then the URL would update to match the ID of the table or view that you are now looking at.
Expanded record URLs
If you expand a record, then you can also see the specific Record ID appear in your browser's address bar. Record ID strings always begin with "rec":
Base IDs in Airtable API
To find a Base ID in the Airtable API, click on the help button near the top-right of your screen. This will open a menu where you will see the "<> API documentation" option.
After clicking the button, you will be brought to our API documentation page that will dynamically surface which base you are working in currently. Both the base name and Base ID will appear.