n-Does Squarespace Have an API? Yes, Here's What It Covers
Squarespace publishes a real Commerce API for orders, inventory, products, and transactions, plus a broader Developer Platform with webhooks, developer mode, and local development tools for custom templates. It's not a general-purpose backend you can bolt anything onto, but it's a genuine, documented way to pull store data out and push custom logic in, and it's exactly what legitimate automation on top of Squarespace runs through.
What the Squarespace API and Developer Platform actually give you
The Commerce API is the part that matters most for automation: read and write access to orders, inventory levels, products, and transactions, with webhooks that fire the moment an order comes in or a product's stock changes, instead of your system polling for updates on a schedule.
Developer mode is a separate thing: it turns on custom templating with Squarespace's own templating language, local development through their CLI, and version control for the site's design, which matters for building a custom look but has nothing to do with order or inventory data.
Documentation covers authentication, rate limits, and the real request and response shapes, which is enough to build a reliable integration on, not a starting point that leaves you guessing at undocumented behavior.
What it doesn't give you
There's no general database you can store your own arbitrary business data in, the way Wix's Velo gives you Wix Data collections. Squarespace's API surface is scoped to commerce and content objects, not a blank backend.
It also doesn't replace needing to understand your own data flow. The API will hand you an order the moment it's placed; what happens to that order next, an invoice, an inventory update, a CRM record, is still something that has to be built. The API just removes the need to scrape a dashboard to get there.
What this usually looks like
Orders that book themselves the moment they happen
A webhook fires on every new Squarespace order, triggering a correctly-taxed invoice in QuickBooks or Xero within seconds, using the Commerce API's own order data rather than a manual export.
Inventory that updates the instant it changes
A stock change anywhere else, a POS, a warehouse system, pushes into Squarespace's inventory through the Commerce API, so the storefront never shows something as available that's already gone.
What are you still pulling out of Squarespace by hand?
Tell us what you currently export or copy manually. The Commerce API usually covers it directly.
Have a developer quote that mentions scraping Squarespace?
That's usually a sign the quote skipped the actual Commerce API, which covers most of what a store integration needs without touching the storefront's HTML at all. Send us what you're trying to connect and we'll tell you which part of it the real API already handles.
Let's talk