Mastercard Gateway API

The Mastercard Payment Gateway provides a robust, developer-friendly REST API for integrating payment processing into applications. It supports a wide range of payment methods, currencies, and transaction types for merchants and payment service providers.

Mastercard Gateway API publishes 1 API on the APIs.io network: Merchant API. Tagged areas include Credit Cards, Gateway, Payment Processing, and Payments.

Mastercard Gateway API’s developer surface includes authentication, developer portal, signup flow, support, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

31.3/100 thin ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

2 APIs

Credit Cards Gateway Payment Processing Payments

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 31.3/100 · thin

Contract Quality 10.7 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 5.6 / 17

Operational Transparency 1.2 / 11

Contract Governance 0.0 / 10

Discoverability 5.7 / 9

Regulatory Posture 3.8 / 15

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/mastercard-gateway-api: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Mastercard Gateway Api Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Get Started 3

Portal, sign-up, and the first successful call

Portal

Portal

Signup

Signup

Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Company 1

The organization behind the API

LinkedIn

Source (apis.yml)

aid: mastercard-gateway-api
name: Mastercard Gateway API
description: The Mastercard Payment Gateway provides a robust, developer-friendly REST API for integrating payment processing
  into applications. It supports a wide range of payment methods, currencies, and transaction types for merchants and payment
  service providers.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/mastercard-gateway-api.png
url: https://raw.githubusercontent.com/api-evangelist/mastercard-gateway-api/refs/heads/main/apis.yml
tags:
- Credit Cards
- Gateway
- Payment Processing
- Payments
created: '2024-11-28'
modified: '2026-04-28'
specificationVersion: '0.23'
apis:
- aid: mastercard-gateway-api:mastercard-gateway-api
  name: Mastercard Gateway API
  tags:
  - Gateway
  - Payments
  humanURL: https://ap-gateway.mastercard.com/api/documentation/apiDocumentation/index.html
  baseURL: https://ap-gateway.mastercard.com/api
  properties:
  - url: https://ap-gateway.mastercard.com/api/documentation/apiDocumentation/index.html
    type: Documentation
  - type: Authentication
    url: https://ap-gateway.mastercard.com/api/documentation/integrationGuidelines/supportedFeatures/pickAuthenticationMethod.html
  - type: Versioning
    url: https://ap-gateway.mastercard.com/api/documentation/integrationGuidelines/versioning.html
  - type: SDKs
    url: https://ap-gateway.mastercard.com/api/documentation/downloads.html
  - type: APIReference
    url: https://ap-gateway.mastercard.com/api/documentation/apiDocumentation/rest-json/version/latest/api.html
  description: The Mastercard Payment Gateway API provides a comprehensive interface for integrating payments into applications,
    supporting multiple payment methods, currencies, and transaction types for merchants worldwide.
- aid: mastercard-gateway-api:mastercard-gateway-api-merchant-api
  name: Mastercard Gateway API Merchant API
  description: The Merchant API from Mastercard Gateway API — 10 operation(s) for merchant.
  humanURL: https://ap-gateway.mastercard.com/api/documentation/apiDocumentation/index.html
  baseURL: https://ap-gateway.mastercard.com/api
  tags:
  - Merchant
  properties:
  - type: OpenAPI
    url: openapi/mastercard-gateway-api-merchant-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/mastercard-gateway-api-agentic-access.yml
- type: DomainSecurity
  url: security/mastercard-gateway-api-domain-security.yml
- type: Authentication
  url: authentication/mastercard-gateway-api-authentication.yml
- type: GitHubOrganization
  url: https://github.com/Mastercard-Gateway
- type: LinkedIn
  url: https://www.linkedin.com/showcase/mastercardgateway
- type: Portal
  url: https://developer.mastercard.com/
- type: Signup
  url: https://developer.mastercard.com/account/sign-up
- type: Login
  url: https://developer.mastercard.com/account/log-in
- type: Support
  url: https://developer.mastercard.com/support
- type: TermsOfService
  url: https://developer.mastercard.com/terms-of-use
- type: LlmsText
  url: https://developer.mastercard.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Mastercard Gateway API

Kin Score

APIs 2

Mastercard Gateway API

Mastercard Gateway API Merchant API

Open Collections 3

API Collection

Mastercard Payment Gateway REST Merchant API

Mastercard Payment Gateway REST API

Pricing Plans 1

Mastercard Gateway Api Plans Pricing

Rate Limits 1

Mastercard Gateway Api Rate Limits

FinOps 1

Mastercard Gateway Api Finops

Security Posture 2

Mastercard Gateway Api Authentication

Mastercard Gateway Api Domain Security

Agentic Access 1

Mastercard Gateway Api Agentic Access

Resources

Get Started 3

Agent Surfaces 2

Build 1

Access & Security 2

Operate 1

Commercial 1

Company 1

Source (apis.yml)

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