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Mastercard Issuer API

Contains APIs which will be consumed by the Issuer's backend system.

Mastercard Issuer API is one of 172 APIs that Mastercard publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Issuer. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, code examples, a changelog, a support channel, and a getting-started guide.

This API exposes 4 operations across 3 paths, and defines 18 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against 2 base URLs: https://api.mastercard.com/cts, https://sandbox.api.mastercard.com/cts.

4 operations 3 paths 18 schemas 1 GET1 POST2 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://api.example.com
Resource Areas
1

Paths & Operations 4

Across 3 paths, the API surfaces 4 operations — 1 GET, 1 POST, 2 PUT. Each is listed below with its method, path, parameters, and response codes.

Issuer 4

Contains APIs which will be consumed by the Issuer's backend system.

GET
/issuers
Mastercard Fetches the Issuer Details
getIssuer → 200401404
PUT
/issuers
Mastercard Allows Issuer to Update the Issuer Details to the Carbon Calculator…
updateIssuer body → 200400401404415
POST
/issuers/users
Mastercard Allows Issuer to Enroll Cardholders to the Carbon Calculator…
userRegistration body → 200400401404415
PUT
/issuers/users/{userid}
Mastercard Allows Issuer to Update Enrolled User Information Onto Carbon…
updateUser 1 param body → 200400401404415

Schemas 18

The contract defines 18 schemas that model the data the API accepts and returns. The most detailed are IssuerProfileDetails (12 properties), Address (9 properties), IssuerProfile (8 properties), UserProfile (8 properties). Each schema is shown below with its type and property counts.

CurrencyCode
string
Currency code as per ISO 4217
UserName
object
2 properties 2 required
UserReference
object
Successful user enrollment response
3 properties 3 required
UserID
string
Unique identifier for a user enrolled in the Carbon Calculator Experience platform.
Error
object
Error object which contains details about a single error.
5 properties 4 required
Email
object
2 properties
IssuerProfileDetails
object
Information about an Issuer as available on the server.
12 properties 11 required
Errors
object
Error object which contains a list of error objects.
1 property 1 required
IssuerConfiguration
object
Configuration details for an Issuer.
5 properties
PreferredTheme
object
Color hex code to set preferred colors for webview.
CountryName
string
ISO 3166 country short name
UserProfile
object
The request object for enrolling a new user to Carbon Calculator Experience API.
8 properties 5 required
UpdateUserProfile
object
The request object for updating a enrolled user onto Carbon Calculator Experience platform.
3 properties 2 required
Address
object
9 properties 2 required
IssuerProfile
object
Information about an Issuer as available on the server.
8 properties 3 required
ErrorWrapper
object
The error response object gets returned in case of error.
1 property 1 required
CardNumber
string
Original payment card number in full.
CardExpiry
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

mastercard-issuer-api-openapi.yml Raw ↑

Other APIs Mastercard publishes across the network.

Mastercard Universal Specification Submission API
Mastercard Account to Account Commerce for Creditor Service Providers
Mastercard Debtor Service Provider Resources API
Mastercard Automatic Billing Updater API
Mastercard Benefit Eligibility Service API
Mastercard Bill Pay API
Mastercard Bill Payment Validator
Mastercard BIN Lookup API
Mastercard Business Payment Controls
Mastercard Carbon Calculator API
Mastercard Carbon Calculator Experience API
Mastercard Checkout Solutions
Where this information came from

This is an independent, third-party profile of Mastercard Issuer API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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