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← Square MCP server

Square × ChatGPT

Use the Square MCP server
in ChatGPT

Payments, orders, catalog, and customers from your Square account. This guide connects Square to ChatGPT (chatgpt.com) through a governed gateway — one URL that also works in every other MCP client you use, with your rules and a full log attached.

Connect Square free

Live-probed · Security-scanned · Note: Square currently restricts third-party sign-ins — API-key path recommended

Setup: Square in ChatGPT

ChatGPT adds MCP servers via custom connectors in developer mode. The gateway route takes about two minutes:

  1. Connect Square to your free gate gateway from the verified directory.
  2. Open ChatGPT → Settings → Connectors and enable Developer mode under Advanced.
  3. Click 'Create', name it 'gate', paste your gateway URL, and set authentication to OAuth.
  4. Approve the authorization — Square is now available in your ChatGPT conversations.

What to ask once it’s connected

“What were yesterday's sales?”
“Find the orders for this customer.”
“Which catalog items sell best this month?”
“Summarize the refunds from the last 30 days.”

Why route it through a gateway

One URL, every client

The same Square connection works in Claude, Claude Code, Cursor, VS Code too — no per-client re-wiring.

Rules before regret

Allow, ask, or block every tool Square exposes — reads can flow freely while writes require your approval.

Every call logged

A plain-language activity log of everything ChatGPT did with Square — searchable, exportable, auditable.

Scanned and probed

Square passed a live handshake probe and a security scan before listing — and drift detection watches it after you connect.

Connect Square freeEverything about Square MCP →

Also available: Square in Claude · Square in Claude Code · Square in Cursor · Square in VS Code