Integrations
Squarespace has no Schedulera app to install, and none is needed: a Code Block runs the same snippet Schedulera gives you for any website.
How do I add my Schedulera booking page to a Squarespace site?
Copy a snippet from a Schedulera session type's Share & Embed tab and paste it into a Squarespace Code Block with Display Source turned off; use the iframe snippet if your plan doesn't run scripts.
Copy your snippet from Schedulera
Open the session type's Share & Embed tab and copy the inline snippet, the popup button snippet, or the plain iframe snippet.
Add a Code Block
Edit the Squarespace page, click an insert point where booking should appear, choose Code from the block menu, and paste the snippet.
Turn off Display Source
Make sure Display Source is off in the Code Block settings; when it's on, Squarespace shows the code as text instead of running it.
Save and check the live page
Save the page and open it outside the editor, since Squarespace's editor preview can hide embedded content.
Tips
No, Schedulera works in Squarespace through a standard Code Block, so there is nothing to install.
Use the plain iframe snippet, which is a single tag and works without the Schedulera script.
See the Embeddable widget product page
Full feature overview, not just the how-to.