---
title: "Square MCP server"
url: "https://martechdb.com/vendors/square"
markdown_url: "https://martechdb.com/vendors/square.md"
api_url: "https://martechdb.com/api/v1/vendors/squareup.com"
updated: "2026-10-01"
---

# Square MCP server

The official MCP server published by Square. MartechDB lists only servers the vendor publishes itself, never community servers.

- Website: [squareup.com](https://squareup.com)
- Categories: [Community, reviews & loyalty](https://martechdb.com/categories/community-reviews-loyalty.md)

## Square MCP server

- Address: https://mcp.squareup.com/mcp
- Runs: Hosted
- Sign-in: Self-serve sign-in (`oauth_self_serve`)
- Official MCP Registry: not listed
- How we found it: Live check of the vendor's own web address
- Last checked: October 2026, in our research

### Connect it

Claude Code:

```sh
claude mcp add --transport http square https://mcp.squareup.com/mcp
```

- Add to Cursor: <cursor://anysphere.cursor-deeplink/mcp/install?name=square&config=eyJ1cmwiOiJodHRwczovL21jcC5zcXVhcmV1cC5jb20vbWNwIn0%3D>
- Add to VS Code: <vscode:mcp/install?%7B%22name%22%3A%22square%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fmcp.squareup.com%2Fmcp%22%7D>
- Claude.ai and Claude Desktop: Customize, Connectors, "+", Add custom connector, then paste https://mcp.squareup.com/mcp
- ChatGPT: Settings, Apps, Advanced settings, turn on Developer mode, Create, then paste https://mcp.squareup.com/mcp

JSON for Cursor, Windsurf and other clients that connect to hosted servers:

```json
{
    "mcpServers": {
        "square": {
            "type": "http",
            "url": "https://mcp.squareup.com/mcp"
        }
    }
}
```

## Alternatives with an official MCP server

In Community, reviews & loyalty:

- [Salesforce](https://martechdb.com/vendors/salesforce.md) (salesforce.com)
- [TrustPilot](https://martechdb.com/vendors/trustpilot.md) (trustpilot.com)
- [Discourse](https://martechdb.com/vendors/discourse.md) (discourse.org)
- [NationBuilder](https://martechdb.com/vendors/nationbuilder.md) (nationbuilder.com)

## Get this data

- API: `curl https://martechdb.com/api/v1/vendors/squareup.com`
- MCP: `claude mcp add --transport http martechdb https://martechdb.com/mcp`, then ask about Square.
- Web page: https://martechdb.com/vendors/square