Square MCP Server — Hosted for Any AI Agent
MCP Server language Hosted language PublicFull Square integration — manage locations, catalog items, customers, orders, payments, and invoices for your Square merchant account.
Use with AI AssistantsMCP
Connect Claude, Cursor, or any MCP-compatible client — then call tools directly
① Add This MCP Server
Paste into your AI client config — then all its tools are available instantly.
{
"mcpServers": {
"square": {
"url": "https://mcp.aerostack.dev/s/aerostack/mcp-square",
"headers": {
"Authorization": "Bearer YOUR_AEROSTACK_TOKEN"
}
}
}
}Replace YOUR_AEROSTACK_TOKEN with your API token from the dashboard.
② Call a Tool
Ask your AI assistant to call a specific tool, or send raw JSON-RPC:
Natural Language Prompt
“Use the _ping tool to verify square credentials by calling a lightweight read endpoint. used internally by aerostack to validate credentials”
Using a Workspace?
Add this MCP to your Workspace — your team shares one token, secrets are stored securely, and every AI agent in the workspace can call it without per-user setup.
description Overview
mcp-square — Square MCP Server
Full Square integration — manage locations, catalog items, customers, orders, payments, and invoices for your Square merchant account.
Live endpoint: https://mcp.aerostack.dev/s/aerostack/mcp-square
What You Can Do
This MCP server gives AI agents access to Square via 14 tools. Connect it to any Aerostack workspace and your agents can interact with Square directly.
Available Tools
| Tool | Description |
|---|---|
list_locations |
List all Square locations for the merchant account |
get_location |
Get details of a specific Square location |
list_catalog_items |
List catalog items from the Square catalog |
get_catalog_item |
Get a specific catalog object including related objects |
list_customers |
List customers in the Square account |
get_customer |
Get details of a specific Square customer |
create_customer |
Create a new customer in Square |
update_customer |
Update an existing Square customer |
list_orders |
Search/list orders for a specific location |
get_order |
Get details of a specific Square order |
list_payments |
List payments for a location within a time range |
get_payment |
Get details of a specific Square payment |
list_invoices |
List invoices for a location |
get_invoice |
Get details of a specific Square invoice |
Configuration
| Variable | Required | Description |
|---|---|---|
SQUARE_ACCESS_TOKEN |
Yes | Your Square access token — found in the Square Developer Dashboard under your application credentials |
Quick Start
Add to Aerostack Workspace
- Go to aerostack.dev → Your Project → MCPs
- Search for "Square" and click Add to Workspace
Add the following secrets under Project → Secrets:
SQUARE_ACCESS_TOKEN
Once added, every AI agent in your workspace can use Square tools automatically.
Direct API Call
curl -X POST https://mcp.aerostack.dev/s/aerostack/mcp-square \
-H 'Content-Type: application/json' \
-H 'X-Mcp-Secret-SQUARE-ACCESS-TOKEN: your-square-access-token' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"list_locations","arguments":{}}}'
License
MIT
terminal Tools (15)
Available tools on this MCP server. Each tool can be called directly from any AI agent.
_ping #1 Verify Square credentials by calling a lightweight read endpoint. Used internally by Aerostack to validate credentials.
list_locations #2 List all Square locations for the merchant account
get_location #3 Get details of a specific Square location
list_catalog_items #4 List catalog items from the Square catalog
get_catalog_item #5 Get a specific catalog object including related objects
list_customers #6 List customers in the Square account
get_customer #7 Get details of a specific Square customer
create_customer #8 Create a new customer in Square
update_customer #9 Update an existing Square customer
list_orders #10 Search/list orders for a specific location
get_order #11 Get details of a specific Square order
list_payments #12 List payments for a location within a time range
get_payment #13 Get details of a specific Square payment
list_invoices #14 List invoices for a location
get_invoice #15 Get details of a specific Square invoice
Details
language Live Endpoint
https://mcp.aerostack.dev/s/aerostack/mcp-square
Sub-50ms globally · Zero cold start
Publisher
Pre-built functions for the most common MCP tool patterns. Clone, extend, and deploy.
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Frequently asked questions
What is the Square MCP server and what can it do? +
The Square MCP server is hosted on Aerostack and exposes these tools to your AI agent: `_ping`, `list_locations`, `get_location`, `list_catalog_items`, `get_catalog_item`. You get one hosted URL — no self-hosting — that works from Claude, Cursor, ChatGPT, Gemini, VS Code, or any MCP-compatible client, and you can share it with your team or combine it with other MCP servers in a workspace.
Is the Square MCP server hosted, or do I have to run it myself? +
It's hosted on Aerostack's edge infrastructure — you don't deploy or maintain anything. Add it to a workspace and you get one authenticated URL, with secrets encrypted, that any AI agent or editor can connect to. Use it solo or share the same URL across your whole team.
Which AI agents and editors can use the Square MCP server? +
Any MCP client: Claude and Claude Code, Cursor, ChatGPT, Gemini, Windsurf, Cline, VS Code, and custom agents. Because it's one hosted URL, the same Square MCP server works everywhere — and you can compose it with other MCP servers, skills, and functions behind a single workspace URL.
How do I install the Square MCP server in Claude Desktop? +
Add the following to your Claude Desktop config (`claude_desktop_config.json`): ```json { "mcpServers": { "@aerostack/mcp-square": { "command": "npx", "args": ["-y", "@aerostack/@aerostack/mcp-square"] } } } ``` Then restart Claude Desktop and the tools will appear automatically.
How do I use the Square MCP server in Cursor? +
In Cursor, open **Settings → MCP** and add: ```json { "name": "@aerostack/mcp-square", "command": "npx", "args": ["-y", "@aerostack/@aerostack/mcp-square"] } ``` Save and reload Cursor. The MCP tools will be available in Agent mode.
Does Square MCP require authentication? +
Yes. Square requires authentication. Check the MCP's documentation for the required credentials.