npx mcpbar@latest install block/square-mcp -c claude

npx mcpbar@latest edit -c claude

{
  "mcpServers": {
    "Square API Server": {
      "command": "uvx",
      "args": [
        "square-mcp"
      ],
      "env": {
        "SQUARE_ACCESS_TOKEN": "${input:square_access_token}"
      }
    }
  }
}

🚨 DEPRECATED: Square MCP Server (Old Version)

⚠️ This repository is no longer maintained.
Official development has moved to square/square-mcp-server.
Please use the new repository for the latest, officially supported Square MCP Server.

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Archived Information (for reference)

A Model Context Protocol (MCP) server that provides access to Square API functionality.

Setup

1. Install dependencies:

uv sync

2. Set environment variables:

# Required
export SQUARE_ACCESS_TOKEN=your_access_token_here

# Optional - defaults to 'sandbox' if not set
export SQUARE_ENVIRONMENT=sandbox  # or 'production' for production environment

3. Run the server:

uv pip install .
square-mcp

Or for development:

source .venv/bin/activate
mcp dev src/square_mcp/server.py

Environment Variables

Variable	Required	Default	Description
SQUARE_ACCESS_TOKEN	Yes	-	Your Square API access token
SQUARE_ENVIRONMENT	No	sandbox	Square API environment (sandbox or production)

---

🔗 Migrate to the new server:

• Repository: square/square-mcp-server