Connect your AI Agents to Square in minutes

Merge lets you securely connect your agents to Square and thousands of tools instantly

Available tools

create_booking

Create a booking/appointment. Requires start_at, location_id, and appointment_segments with service and team member.

list_bookings

List bookings. Filter by location, team member, or date range. Returns paginated list with status.

get_booking

Get a booking by ID. Returns full booking details including service, team member, and customer.

update_booking

Update a booking. Can reschedule, change team member, or update notes. Use version for concurrency.

cancel_booking

Cancel a booking. Booking status changes to CANCELLED. Use booking_version for concurrency.

list_team_member_booking_profiles

List team members available for booking. Filter by location or bookable status. Returns profiles with availability.

search_availability

Search for available booking time slots. Specify date range and service. Returns available times with team members.

list_cards

List cards on file. Filter by customer_id or reference_id. Returns cards with last 4 digits, brand, and expiration.

get_card

Get a card by ID. Returns card details including last 4 digits, brand, expiration, and billing address.

create_card

Save a card on file for a customer. Requires source_id (card nonce from Web Payments SDK) and customer_id. Returns saved card.

disable_card

Disable a card on file. The card can no longer be used for payments. This action is irreversible.

list_catalog

List catalog objects (items, categories, taxes, discounts). Filter by object types. Returns paginated list with cursor.

How to set up Merge Agent Handler

In an mcp.json file, add the configuration below, and restart Cursor.

Learn more in the official documentation ↗

1{
2  "mcpServers": {
3    "agent-handler": {
4      "url": "https://ah-api-develop.merge.dev/api/v1/tool-packs/{TOOL_PACK_ID}/registered-users/{REGISTERED_USER_ID}/mcp",
5      "headers": {
6        "Authorization": "Bearer yMt*****"
7      }
8    }
9  }
10}
11
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Open your Claude Desktop configuration file and add the server configuration below. You'll also need to restart the application for the changes to take effect.

Make sure Claude is using the Node v20+.

Learn more in the official documentation ↗

1{
2  "mcpServers": {
3    "agent-handler": {
4      "command": "npx",
5      "args": [
6        "-y",
7        "mcp-remote@latest",
8        "https://ah-api-develop.merge.dev/api/v1/tool-packs/{TOOL_PACK_ID}/registered-users/{REGISTERED_USER_ID}/mcp",
9        "--header",
10        "Authorization: Bearer ${AUTH_TOKEN}"
11      ],
12      "env": {
13        "AUTH_TOKEN": "yMt*****"
14      }
15    }
16  }
17}
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Open your Windsurf MCP configuration file and add the server configuration below.
Click on the refresh button in the top right of the Manage MCP server page or in the top right of the chat box in the box icon.

Learn more in the official documentation ↗

1{
2    "mcpServers": {
3      "agent-handler": {
4        "command": "npx",
5        "args": [
6          "-y",
7          "mcp-remote@latest",
8          "https://ah-api.merge.dev/api/v1/tool-packs/<tool-pack-id>/registered-users/<registered-user-id>/mcp",
9          "--header",
10          "Authorization: Bearer ${AUTH_TOKEN}"
11        ],
12        "env": {
13          "AUTH_TOKEN": "<ah-production-access-key>"
14        }
15      }
16    }
17  }
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In Command Palette (Cmd+Shift+P on macOS, Ctrl+Shift+P on Windows), run "MCP: Open User Configuration".

You can then add the configuration below and press "start" right under servers. Enter the auth token when prompted.

Learn more in the official documentation ↗

1{
2  "inputs": [
3    {
4      "type": "promptString",
5      "id": "agent-handler-auth",
6      "description": "Agent Handler AUTH_TOKEN", // "yMt*****" when prompt
7      "password": true
8    }
9  ],
10  "servers": {
11    "agent-handler": {
12      "type": "stdio",
13      "command": "npx",
14      "args": [
15        "-y",
16        "mcp-remote@latest",
17        "https://ah-api-develop.merge.dev/api/v1/tool-packs/{TOOL_PACK_ID}/registered-users/{REGISTERED_USER_ID}/mcp",
18        "--header",
19        "Authorization: Bearer ${input:agent-handler-auth}"
20      ]
21    }
22  }
23}
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FAQs on using Merge's Square  MCP server

FAQs on using Merge's Square  MCP server

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Ready to try it out?

Whether you're an engineer experimenting with agents or a product manager looking to add tools, you can get started for free now