Block Checkout API
The Checkout API from Block — 5 operation(s) for checkout.
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OpenAPI Specification
openapi: 3.2.0
info:
version: '2.0'
title: Square Checkout API
description: Use Square APIs to manage and run business including payment, customer, product, inventory, and employee management.
termsOfService: https://connect.squareup.com/tos
contact:
name: Square Developer Platform
email: developers@squareup.com
url: https://squareup.com/developers
license:
name: Apache 2.0
url: http://www.apache.org/licenses/LICENSE-2.0.html
externalDocs:
description: 'Read the official documentation here:'
url: https://docs.connect.squareup.com/
x-server-configuration:
default-environment: production
default-server: default
environments:
- name: production
servers:
- name: default
url: https://connect.squareup.com
- name: sandbox
servers:
- name: default
url: https://connect.squareupsandbox.com
- name: custom
servers:
- name: default
url: '{custom_url}'
parameters:
- name: custom_url
description: Sets the base URL requests are made to. Defaults to `https://connect.squareup.com`
type: string
example: https://connect.squareup.com
x-square-generic-error-codes:
- ACCESS_TOKEN_EXPIRED
- ACCESS_TOKEN_REVOKED
- API_VERSION_INCOMPATIBLE
- APPLICATION_DISABLED
- ARRAY_EMPTY
- ARRAY_LENGTH_TOO_LONG
- ARRAY_LENGTH_TOO_SHORT
- BAD_CERTIFICATE
- BAD_GATEWAY
- BAD_REQUEST
- CONFLICT
- CONFLICTING_PARAMETERS
- CURRENCY_MISMATCH
- EXPECTED_ARRAY
- EXPECTED_BASE64_ENCODED_BYTE_ARRAY
- EXPECTED_BOOLEAN
- EXPECTED_FLOAT
- EXPECTED_INTEGER
- EXPECTED_JSON_BODY
- EXPECTED_MAP
- EXPECTED_OBJECT
- EXPECTED_STRING
- FORBIDDEN
- GATEWAY_TIMEOUT
- GONE
- IDEMPOTENCY_KEY_REUSED
- INCORRECT_TYPE
- INSUFFICIENT_SCOPES
- INTERNAL_SERVER_ERROR
- INVALID_ARRAY_VALUE
- INVALID_CONTENT_TYPE
- INVALID_CURSOR
- INVALID_ENUM_VALUE
- INVALID_FORM_VALUE
- INVALID_SORT_ORDER
- INVALID_SQUARE_VERSION_FORMAT
- INVALID_TIME
- INVALID_TIME_RANGE
- INVALID_VALUE
- LOCATION_MISMATCH
- MAP_KEY_LENGTH_TOO_LONG
- MAP_KEY_LENGTH_TOO_SHORT
- MERCHANT_SUBSCRIPTION_NOT_FOUND
- METHOD_NOT_ALLOWED
- MISSING_REQUIRED_PARAMETER
- NOT_ACCEPTABLE
- NOT_FOUND
- NOT_IMPLEMENTED
- NO_FIELDS_SET
- RATE_LIMITED
- REQUEST_ENTITY_TOO_LARGE
- REQUEST_TIMEOUT
- SANDBOX_NOT_SUPPORTED
- SERVICE_UNAVAILABLE
- TOO_MANY_MAP_ENTRIES
- UNAUTHORIZED
- UNEXPECTED_VALUE
- UNKNOWN_BODY_PARAMETER
- UNKNOWN_QUERY_PARAMETER
- UNPROCESSABLE_ENTITY
- UNSUPPORTED_MEDIA_TYPE
- V1_ACCESS_TOKEN
- V1_APPLICATION
- VALUE_EMPTY
- VALUE_REGEX_MISMATCH
- VALUE_TOO_HIGH
- VALUE_TOO_LONG
- VALUE_TOO_LOW
- VALUE_TOO_SHORT
servers:
- url: https://connect.squareup.com
variables: {}
tags:
# --- truncated at 32 KB (426 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/block/refs/heads/main/openapi/block-checkout-api-openapi.yml