Square Automation via Rube MCP

Automate Square payment processing, order management, and invoicing through Composio's Square toolkit via Rube MCP.

Prerequisites

Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
Active Square connection via
```
RUBE_MANAGE_CONNECTIONS
```
with toolkit
```
square
```
Always call
```
RUBE_SEARCH_TOOLS
```
first to get current tool schemas

Setup

Get Rube MCP: Add

https://rube.app/mcp

as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.

Verify Rube MCP is available by confirming
```
RUBE_SEARCH_TOOLS
```
responds
Call
```
RUBE_MANAGE_CONNECTIONS
```
with toolkit
```
square
```
If connection is not ACTIVE, follow the returned auth link to complete Square OAuth
Confirm connection status shows ACTIVE before running any workflows

Core Workflows

1. List and Monitor Payments

When to use: User wants to view payment history or check payment status

Tool sequence:

```
SQUARE_LIST_PAYMENTS
```
- Retrieve payments with optional filters [Required]
```
SQUARE_CANCEL_PAYMENT
```
- Cancel a pending payment if needed [Optional]

Key parameters:

```
begin_time
```
/
```
end_time
```
: RFC 3339 timestamps for date range filtering
```
sort_order
```
: 'ASC' or 'DESC' for chronological ordering
```
cursor
```
: Pagination cursor from previous response
```
location_id
```
: Filter payments by specific location

Pitfalls:

Timestamps must be RFC 3339 format (e.g., '2024-01-01T00:00:00Z')
Pagination required for large result sets; follow
```
cursor
```
until absent
Only pending payments can be cancelled; completed payments require refunds
```
SQUARE_CANCEL_PAYMENT
```
requires exact
```
payment_id
```
from list results

2. Search and Manage Orders

When to use: User wants to find orders by criteria or update order details

Tool sequence:

```
SQUARE_LIST_LOCATIONS
```
- Get location IDs for filtering [Prerequisite]
```
SQUARE_SEARCH_ORDERS
```
- Search orders with filters [Required]
```
SQUARE_RETRIEVE_ORDER
```
- Get full details of a specific order [Optional]
```
SQUARE_UPDATE_ORDER
```
- Modify order state or details [Optional]

Key parameters:

```
location_ids
```
: Array of location IDs to search within (required for search)
```
query
```
: Search filter object with date ranges, states, fulfillment types
```
order_id
```
: Specific order ID for retrieve/update operations
```
cursor
```
: Pagination cursor for search results

Pitfalls:

```
location_ids
```
is required for SEARCH_ORDERS; get IDs from LIST_LOCATIONS first
Order states include: OPEN, COMPLETED, CANCELED, DRAFT
UPDATE_ORDER requires the current
```
version
```
field to prevent conflicts
Search results are paginated; follow
```
cursor
```
until absent

3. Manage Locations

When to use: User wants to view business locations or get location details

Tool sequence:

```
SQUARE_LIST_LOCATIONS
```
- List all business locations [Required]

Key parameters:

No required parameters; returns all accessible locations
Response includes
```
id
```
,
```
name
```
,
```
address
```
,
```
status
```
,
```
timezone
```

Pitfalls:

Location IDs are required for most other Square operations (orders, payments)
Always cache location IDs after first retrieval to avoid redundant calls
Inactive locations may still appear in results; check
```
status
```
field

4. Invoice Management

When to use: User wants to list, view, or cancel invoices

Tool sequence:

```
SQUARE_LIST_LOCATIONS
```
- Get location ID for filtering [Prerequisite]
```
SQUARE_LIST_INVOICES
```
- List invoices for a location [Required]
```
SQUARE_GET_INVOICE
```
- Get detailed invoice information [Optional]
```
SQUARE_CANCEL_INVOICE
```
- Cancel a scheduled or unpaid invoice [Optional]

Key parameters:

```
location_id
```
: Required for listing invoices
```
invoice_id
```
: Required for get/cancel operations
```
cursor
```
: Pagination cursor for list results
```
limit
```
: Number of results per page

Pitfalls:

```
location_id
```
is required for LIST_INVOICES; resolve via LIST_LOCATIONS first
Only SCHEDULED, UNPAID, or PARTIALLY_PAID invoices can be cancelled
CANCEL_INVOICE requires the invoice
```
version
```
to prevent race conditions
Cancelled invoices cannot be uncancelled

Common Patterns

ID Resolution

Location name -> Location ID:

1. Call SQUARE_LIST_LOCATIONS
2. Find location by name in response
3. Extract id field (e.g., 'L1234ABCD')

Order lookup:

1. Call SQUARE_SEARCH_ORDERS with location_ids and query filters
2. Extract order_id from results
3. Use order_id for RETRIEVE_ORDER or UPDATE_ORDER

Pagination

Check response for
```
cursor
```
field
Pass cursor value in next request's
```
cursor
```
parameter
Continue until
```
cursor
```
is absent or empty
Use
```
limit
```
to control page size

Date Range Filtering

Use RFC 3339 format:
```
2024-01-01T00:00:00Z
```
For payments:
```
begin_time
```
and
```
end_time
```
parameters
For orders: Use query filter with date_time_filter
All timestamps are in UTC

Known Pitfalls

ID Formats:

Location IDs are alphanumeric strings (e.g., 'L1234ABCD')
Payment IDs and Order IDs are longer alphanumeric strings
Always resolve location names to IDs before other operations

Versioning:

UPDATE_ORDER and CANCEL_INVOICE require current
```
version
```
field
Fetch the resource first to get its current version
Version mismatch returns a 409 Conflict error

Rate Limits:

Square API has per-endpoint rate limits
Implement backoff for bulk operations
Pagination should include brief delays for large datasets

Response Parsing:

Responses may nest data under
```
data
```
key
Money amounts are in smallest currency unit (cents for USD)
Parse defensively with fallbacks for optional fields

Quick Reference

Task	Tool Slug	Key Params
List payments	SQUARE_LIST_PAYMENTS	begin_time, end_time, location_id, cursor
Cancel payment	SQUARE_CANCEL_PAYMENT	payment_id
Search orders	SQUARE_SEARCH_ORDERS	location_ids, query, cursor
Get order	SQUARE_RETRIEVE_ORDER	order_id
Update order	SQUARE_UPDATE_ORDER	order_id, version
List locations	SQUARE_LIST_LOCATIONS	(none)
List invoices	SQUARE_LIST_INVOICES	location_id, cursor
Get invoice	SQUARE_GET_INVOICE	invoice_id
Cancel invoice	SQUARE_CANCEL_INVOICE	invoice_id, version

square-automation

NPX Install

Tags

SKILL.md Content

Square Automation via Rube MCP

Prerequisites

Setup

Core Workflows

1. List and Monitor Payments

2. Search and Manage Orders

3. Manage Locations

4. Invoice Management

Common Patterns

ID Resolution

Pagination

Date Range Filtering

Known Pitfalls

Quick Reference