Mastercard Gateway API website screenshot

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
39.9/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemiumSelf serve⚡ Free to try
2 APIs
Credit CardsGatewayPayment ProcessingPayments

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 39.9/100 · thin
Contract Quality 14.4 / 25
Developer Ergonomics 4.8 / 20
Commercial Clarity 12.6 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 5.9 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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
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.

Mastercard Gateway API

The Mastercard Payment Gateway API provides a comprehensive interface for integrating payments into applications, supporting multiple payment methods, currencies, and transactio...

Mastercard Gateway API Merchant API

The Merchant API from Mastercard Gateway API — 10 operation(s) for merchant.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Mastercard Payment Gateway REST API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Mastercard Gateway Api Plans Pricing

3 plans

PLANS

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.

Mastercard Gateway Api Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Mastercard Gateway Api Authentication

http/mutualTLS · 2 schemes

SECURITY

Mastercard Gateway Api Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Mastercard Gateway Api Agentic Access

14 operations · 9 acting

14 operations · 9 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Portal
Portal
 Signup
Signup
 Login
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
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
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: '0.19'
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