Checkout.com Customers API
The Customers API from Checkout.com — 2 operation(s) for customers.
Checkout.com Customers API is one of 17 APIs that Checkout.com publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Customers. The published artifact set on APIs.io includes an OpenAPI specification.
This API exposes 3 operations across 2 paths. It is described by OpenAPI 3.1.0, at version 2026-05-23.
Requests are made against 2 base URLs: https://api.checkout.com, https://api.sandbox.checkout.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
Checkout.com Customers API declares
2 security schemes
for authenticating requests.
It accepts HTTP bearer tokens (BearerAuth).
It supports OAuth 2.0 (OAuth2) using the clientCredentials flow, exposing 2 scopes.
By default, every request must be authenticated.
BearerAuth— Secret API key as Bearer token (format Bearer sk...).OAuth2— OAuth 2.0 client credentials flow
Paths & Operations 3
Across 2 paths, the API surfaces 3 operations — 1 GET, 1 PATCH, 1 POST. Each is listed below with its method, path, parameters, and response codes.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Checkout.com 12
Other APIs Checkout.com publishes across the network.