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Square MCP Server

repo →

A Model Context Protocol (MCP) server for Square

stdio· API key· npm

> install

npx square-mcp-server
Claude DesktopGeneric / MCP client

Square's official MCP server exposes the Connect API to any Model Context Protocol client, letting AI assistants like Claude or Cursor query catalog, process payments, manage inventory, and pull order data through natural language. Built for developers and technical founders on Square who want to prototype agent workflows or internal copilots without writing custom API wrappers. Runs locally, authenticates with Square access tokens, and inherits the permissions of the connected merchant account.

> what it does

  • Expose Square Connect APIs to Claude, Cursor, and MCP clients
  • Handle payments, catalog, inventory, and orders via natural language
  • Run locally as an MCP server with Square credentials
  • Skip custom SDK wrappers when prototyping Square-powered agents
  • Supports read and write operations across Square merchant accounts

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