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← Square MCP server

Square × Claude

Use the Square MCP server
in Claude

Payments, orders, catalog, and customers from your Square account. This guide connects Square to Claude (claude.ai and the Claude desktop app) 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 Claude

Claude adds MCP servers via custom connectors in Settings. The gateway route takes about two minutes:

  1. Create a free gate gateway and connect Square to it from the verified directory (one click — note: Square currently restricts third-party sign-ins, so use the API-key path if the vendor offers one).
  2. Open claude.ai → Settings → Connectors and click 'Add custom connector'.
  3. Name it 'gate' and paste your gateway URL, then approve the authorization.
  4. Ask Claude something Square can answer — the call runs through your gateway, with your rules applied and logged.

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 Code, ChatGPT, 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 Claude 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 Code · Square in ChatGPT · Square in Cursor · Square in VS Code