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OpenAPI Specification
openapi: 3.2.0
info:
title: Square Catalog Customers API
description: Square API provides payment processing, commerce, customer management, and business operations capabilities for sellers, developers, and merchants. Supports point-of-sale, ecommerce, invoicing, loyalty, gift cards, and more.
version: 2026-01-22
contact:
name: Square Developer Support
url: https://developer.squareup.com/forums
termsOfService: https://squareup.com/us/en/legal/general/developer
license:
name: Apache 2.0
url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: https://connect.squareup.com/v2
description: Production
- url: https://connect.squareupsandbox.com/v2
description: Sandbox
security:
- BearerAuth: []
- OAuth2: []
tags:
- name: Customers
description: Customer management and engagement
paths:
/customers:
get:
operationId: list-customers
summary: Block Square List Customers
description: Lists customer profiles associated with a Square account.
tags:
- Customers
parameters:
- name: cursor
in: query
schema:
type: string
description: Pagination cursor.
- name: limit
in: query
schema:
type: integer
maximum: 100
description: Maximum number of results to return.
responses:
'200':
description: Customers retrieved successfully
content:
application/json:
schema:
$ref: '#/components/schemas/ListCustomersResponse'
examples:
list-customers:
summary: List of customers
value:
customers:
- id: JDKYHBWT1D4F8MFH63DBMEN8Y4
given_name: Amelia
family_name: Earhart
email_address: Amelia.Earhart@example.com
phone_number: '+11234567890'
created_at: '2016-03-23T20:21:54.859Z'
updated_at: '2016-03-23T20:21:55Z'
x-microcks-default: true
x-microcks-operation:
delay: 50
dispatcher: FALLBACK
post:
operationId: create-customer
summary: Block Square Create Customer
description: Creates a new customer for a business.
tags:
- Customers
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/CreateCustomerRequest'
examples:
create-customer:
summary: New customer
value:
idempotency_key: 916f88d4-ba1d-11ea-b3de-0242ac130004
given_name: Amelia
family_name: Earhart
email_address: Amelia.Earhart@example.com
phone_number: '+11234567890'
x-microcks-default: true
responses:
'200':
description: Customer created successfully
content:
application/json:
schema:
$ref: '#/components/schemas/CreateCustomerResponse'
examples:
created-customer:
summary: Created customer
value:
customer:
id: JDKYHBWT1D4F8MFH63DBMEN8Y4
given_name: Amelia
family_name: Earhart
email_address: Amelia.Earhart@example.com
phone_number: '+11234567890'
created_at: '2016-03-23T20:21:54.859Z'
updated_at: '2016-03-23T20:21:55Z'
x-microcks-default: true
x-microcks-operation:
delay: 100
dispatcher: SCRIPT
components:
schemas:
Customer:
type: object
description: Represents a customer profile in a Square seller account.
properties:
id:
type: string
description: Unique ID for this customer.
example: JDKYHBWT1D4F8MFH63DBMEN8Y4
given_name:
type: string
description: Customer's first name.
example: Amelia
family_name:
type: string
description: Customer's last name.
example: Earhart
email_address:
type: string
format: email
description: Customer's email address.
example: Amelia.Earhart@example.com
phone_number:
type: string
description: Customer's phone number.
example: '+11234567890'
created_at:
type: string
format: date-time
example: '2016-03-23T20:21:54.859Z'
updated_at:
type: string
format: date-time
example: '2016-03-23T20:21:55Z'
CreateCustomerResponse:
type: object
properties:
customer:
$ref: '#/components/schemas/Customer'
CreateCustomerRequest:
type: object
properties:
idempotency_key:
type: string
example: 916f88d4-ba1d-11ea-b3de-0242ac130004
given_name:
type: string
example: Amelia
family_name:
type: string
example: Earhart
email_address:
type: string
format: email
example: Amelia.Earhart@example.com
phone_number:
type: string
example: '+11234567890'
ListCustomersResponse:
type: object
properties:
customers:
type: array
items:
$ref: '#/components/schemas/Customer'
cursor:
type: string
securitySchemes:
BearerAuth:
type: http
scheme: bearer
description: Personal access token for Square API
OAuth2:
type: oauth2
flows:
authorizationCode:
authorizationUrl: https://connect.squareup.com/oauth2/authorize
tokenUrl: https://connect.squareup.com/oauth2/token
scopes:
PAYMENTS_READ: Read payments
PAYMENTS_WRITE: Write payments
ORDERS_READ: Read orders
ORDERS_WRITE: Write orders
CUSTOMERS_READ: Read customers
CUSTOMERS_WRITE: Write customers
x-generated-from: documentation
x-source-url: https://developer.squareup.com/reference/square