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Marketplace/Square

TL;DR

Square is a Payments MCP server that lets Claude Code, Cursor, Windsurf and any MCP-compatible AI agent square payment processing, inventory management, and point-of-sale integration. Install in 1 minute with mcpizy install square.

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Square

Verified

Payments

Last updated May 30, 2026 · By MCPizy team

Square payment processing, inventory management, and point-of-sale integration.

Install Square

Via MCPizy CLI (recommended):
mcpizy install square
Or run directly:
npx -y @square/mcp-server
View on GitHub

Works with

Claude Code
Claude Desktop
Cursor
Windsurf
VS Code + Copilot
Any MCP Client

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💰

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Chargebee

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Key Takeaways

  • Square exposes an MCP interface for payments workflows in Claude Code, Cursor and Windsurf.
  • No authentication required — works out of the box once installed.
  • Install in 1 command: mcpizy install square — config written to your client automatically.
  • Free and open source (GitHub source linked above) — verified compatible with every MCP client (Claude Code, Claude Desktop, Cursor, Windsurf, VS Code + Copilot).
  • Best use case: automate payments workflows from your AI agent without leaving the editor.

Frequently asked questions

What is the Square MCP server?

The Square MCP server is an Payments Model Context Protocol server that lets Claude Code, Cursor, Windsurf, VS Code with Copilot, and other MCP-compatible AI agents square payment processing, inventory management, and point-of-sale integration. It exposes Square's capabilities as tools the AI can call directly from your editor or CLI.

How do I install Square MCP with Claude Code?

The fastest way is the MCPizy CLI: run `mcpizy install square` and MCPizy will add the server to your `.claude.json` automatically. You can also install it manually by adding an entry under `mcpServers` in `.claude.json` with the command `npx -y @square/mcp-server` and restarting Claude Code.

Is Square MCP free?

Yes. The Square MCP server is free and open source (see the GitHub repository linked on this page). You may still need a Square account or API key to connect the server to the underlying service, but the MCP layer itself has no MCPizy subscription cost.

Does Square MCP work with Cursor and Windsurf?

Yes. Any MCP-compatible client works — including Claude Code, Claude Desktop, Cursor (via `.cursor/mcp.json`), Windsurf, VS Code with Copilot Chat, and custom agents built on the MCP SDK. The same install command targets all of them; only the config file path differs.

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What can I do with Square MCP?

Once installed, your AI agent can square payment processing, inventory management, and point-of-sale integration directly inside your conversation. Typical use cases include asking Claude Code or Cursor to run Square operations, inspect results, chain Square with other MCP servers (see our Workflow Recipes), and automate repetitive payments tasks without leaving your editor.