How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Mastercard Inquiries API

The Inquiries API from Mastercard — 2 operation(s) for inquiries.

Mastercard Inquiries API is one of 249 APIs that Mastercard publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Inquiries. 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 2 operations across 2 paths, and defines 20 schemas. It is described by OpenAPI 2.0, at version 1.0.

Requests are made against the base URL https://api.example.com.

2 operations 2 paths 20 schemas 2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 2.0
API Version
1.0
Base URL
https://api.example.com
Resource Areas
1

Paths & Operations 2

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

Inquiries 2
POST
/inquiries
Mastercard Inquiry Request for an Update on an Account.
accountInquiry body → 200400401
POST
/subscription-inquiries
Mastercard Inquire on a Subscription to Determine if an Account Is Already Being Watched or Not.
subscriptionInquiry body → 200400401

Schemas 20

The contract defines 20 schemas that model the data the API accepts and returns. The most detailed are Error (5 properties), CustomerAccount (3 properties), BaseCustomer (2 properties), BaseAccount (2 properties). Each schema is shown below with its type and property counts.

Ica
string
A number assigned by Mastercard to a licensed customer to identify the member in transactions. This is used as an identifier for data submitted to ABU.
SubscriptionInquiry
MerchantId
string
A merchant ID or payment facilitator ID, previously registered with Mastercard.
CustomerAccount
object
3 properties 3 required
Inquiry
Customer
object
Representation of a customer
Account
object
Representation of an account
Expiry
string
The expiration date associated to the account number being inquired upon. Must be in MMYY format.
AccountUpdate
object
2 properties
ResponseIndicator
string
An indicator to help explain the status of the account being inquired on. Possible values are: VALID = Matches the account as reported by the issuer. UNKNOWN =…
ErrorWrapper
object
1 property 1 required
OutSubscriptionInquiry
object
1 property
SubMerchantId
string
An optional identifier for a sub-merchant of a payment facilitators under a registered merchant ID.
AccountNumber
string
The account number being inquired upon.
BaseCustomer
object
Properties common to all customer
2 properties 2 required
Errors
object
1 property 1 required
OutInquiry
BaseAccount
object
Properties common to all accounts
2 properties 2 required
ErrorList
array
Error
object
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

mastercard-inquiries-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 Inquiries 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.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.