Put your Square catalog and stock to work with AI.
Checked against official docs on .
Ask your AI to check a catalog item, compare stock across locations or review orders. Give it permission for supported catalog and physical-count changes when you are ready.
What your AI can do with Square
Supported work
- Read and edit supported listings
- Read and set inventory
- Read orders (read-only)
Not supported
- Fulfillment and tracking changes
- Refunds
- Cancellations
Writes need a paid plan, permission and provider support. Actual grants may be narrower.
Catalog items and variations
Read items and their variations. With a paid plan and write permission, create or update supported catalog records. A variation keeps its own identifier.
Stock at the right location
Read stock by variation and location. Set a deliberate physical count; inventory adjustment is not supported. Check the location and re-read before and after a change.
Order review, without order writes
Read orders across active locations. Fulfillment, tracking changes, refunds, cancellations and order-event ingestion are not supported.
What you can ask
Name the store and review proposed changes. Examples do not create automatic workflows.
Read my selected Square store and show the variations for one known catalog item. Do not make changes.Compare inventory for this Square variation across its locations. Keep unknown quantities unknown.Review recent Square orders and identify their source location. Do not request buyer details or change any orders.How it works
- Sign in to Store MCP, open Stores and choose Square.
- Authorize the intended seller on Square, then check the returned connection and seller identity.
- Connect your AI using View only access to that store.
- Read a known catalog item and compare its variation and location-specific stock with Square.
Your stores. Your permissions.
View only to start
Authorize each AI client for selected stores. Enable supported listing and stock changes deliberately; ordinary writes do not each require separate browser approval.
Approval for sensitive actions
Supported refunds, cancellations and store disconnection require owner approval in the browser. No publicly open connector currently offers order refunds or cancellations.
Provider credentials stay out of chat
Saved provider tokens are encrypted with AES-GCM and are not handed to AI clients. Authorize on the provider’s website, never by pasting credentials into a prompt.
No synced orders or customer database
Store MCP does not maintain a synced orders or customer database. Buyer details need separate sensitive permission, an explicit request and provider access.
Review recorded tool activity
Activity shows Store MCP actions and the acting client within your plan’s retention period. Review the outcome before retrying a change whose result is unknown.
A named operator and a way to reach us
Store MCP is operated by Moss Systems LLC. Contact support@store-mcp.com for connection or account questions.
Start with one store
Free to start with View only access. Compare plans and limits.
Questions before you connect?
Can I connect Square today?
Yes. Square public connections are open. Scoped sandbox acceptance covers authorization, catalog work and inventory counts; this is not a claim that every production store has been verified.
Can my AI refund or fulfill Square orders?
No. Square orders are read-only in Store MCP. Refunds, cancellations, fulfillment changes and incoming order events are not implemented.
Does creating a catalog item publish it?
Catalog creation is not a Store MCP publication operation. Publication-state changes and media upload are not exposed by this connector.
What do I need to update stock?
Use Starter or higher, write permission and the exact variation/location pair. inventory.set records a physical count, not an atomic expected-quantity change; re-read before and after it.
Official references and setup availability
Documentation checked 2026-09-21. Menu labels and account eligibility can change. References do not imply a marketplace listing, endorsement or completed production acceptance.
Put your store data to work.
Start with the access you choose.