GCash website screenshot

GCash

GCash (operated by Mynt / G-Xchange, Inc.) is the Philippines' largest mobile wallet and e-money platform, offering payments, transfers, QR checkout, bills payment, savings, lending and insurance to tens of millions of users. For developers and businesses it exposes a partner-gated API surface: the GCash API Portal (discover and subscribe to API products such as In-Store QR, Webpay, GLife and Funds Disbursement) and the GCash Mini Program Open API, which lets merchants build in-app mini programs with cashier payments, refunds and user authorization. API requests are secured with per-request RSA256/ECC224 signatures plus an OAuth2 authorization-code user flow, with idempotent payment operations and asynchronous webhook notifications. This profile was seeded as a portfolio lead and enriched from GCash's public developer documentation.

GCash publishes 1 API on the APIs.io network. Tagged areas include Company, Payments, Mobile Wallet, E-Money, and Fintech.

The GCash catalog on APIs.io includes 1 event-driven AsyncAPI specification.

GCash’s developer surface includes documentation, API reference, getting-started guide, support, authentication, sandbox, and 16 more developer resources.

39.5/100 thin ▬ flat Agent 50/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyPaymentsMobile WalletE-MoneyFintechDigital PaymentsPhilippinesQR Payments

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 39.5/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 13.0 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 2.4 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 50/100 · agent ready
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 3
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/gcash: 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 1

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

GCash Mini Program Open API

Merchant-facing payment API for GCash mini programs — cashier payment, payment inquiry, refund and refund inquiry, plus OAuth2 user authorization (authCode -> applyToken). Signe...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

gcash-mcp.yml

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Security Posture 3

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

Gcash Authentication

signature/oauth2 · 3 schemes

SECURITY

Gcash Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Gcash Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Access & Security 5

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: gcash
name: GCash
description: 'GCash (operated by Mynt / G-Xchange, Inc.) is the Philippines'' largest mobile wallet and e-money platform,
  offering payments, transfers, QR checkout, bills payment, savings, lending and insurance to tens of millions of users. For
  developers and businesses it exposes a partner-gated API surface: the GCash API Portal (discover and subscribe to API products
  such as In-Store QR, Webpay, GLife and Funds Disbursement) and the GCash Mini Program Open API, which lets merchants build
  in-app mini programs with cashier payments, refunds and user authorization. API requests are secured with per-request RSA256/ECC224
  signatures plus an OAuth2 authorization-code user flow, with idempotent payment operations and asynchronous webhook notifications.
  This profile was seeded as a portfolio lead and enriched from GCash''s public developer documentation.'
url: https://raw.githubusercontent.com/api-evangelist/gcash/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- insight-partners
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://logo.clearbit.com/gcash.com
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Payments
- Mobile Wallet
- E-Money
- Fintech
- Digital Payments
- Philippines
- QR Payments
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: GCash Mini Program Open API
  description: Merchant-facing payment API for GCash mini programs — cashier payment, payment inquiry, refund and refund inquiry,
    plus OAuth2 user authorization (authCode -> applyToken). Signed requests (Client-Id + Request-Time + Signature), idempotent
    on paymentRequestId/refundRequestId, with async notification callbacks.
  humanURL: https://miniprogram.gcash.com/docs/miniprogram_gcash/mpdev/openapi_overview
  baseURL: https://apiportal.gcash.com
  x-baseURL-note: Production access is provisioned through the GCash API Portal (apiportal.gcash.com); the mini-program Open
    API gateway host is issued to approved partners and not published publicly.
  tags:
  - Payments
  - Mini Program
  - Refunds
  properties:
  - type: Documentation
    url: https://miniprogram.gcash.com/docs/miniprogram_gcash/mpdev/openapi_overview
  - type: APIReference
    url: https://miniprogram.gcash.com/docs/miniprogram_gcash/mpdev/api_api-reference
  - type: GettingStarted
    url: https://miniprogram.gcash.com/docs/miniprogram_gcash/mpdev/developer-guide
common:
- type: Website
  url: https://new.gcash.com/
- type: DeveloperPortal
  url: https://apiportal.gcash.com
- type: Documentation
  url: https://miniprogram.gcash.com/docs/miniprogram_gcash/mpdev/openapi_overview
- type: APIReference
  url: https://miniprogram.gcash.com/docs/miniprogram_gcash/mpdev/api_api-reference
- type: GettingStarted
  url: https://miniprogram.gcash.com/docs/miniprogram_gcash/mpdev/developer-guide
- type: Support
  url: https://gcash.com/business/api-portal-faqs
- type: TermsOfService
  url: https://gcash.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://gcash.com/privacy-notice
- type: Authentication
  url: authentication/gcash-authentication.yml
- type: Conventions
  url: conventions/gcash-conventions.yml
- type: Idempotency
  url: conventions/gcash-conventions.yml
- type: ErrorCatalog
  url: errors/gcash-problem-types.yml
- type: Webhooks
  url: asyncapi/gcash-payments-webhooks.yml
- type: Sandbox
  url: sandbox/gcash-sandbox.yml
- type: MCPServer
  url: mcp/gcash-mcp.yml
- type: Lifecycle
  url: lifecycle/gcash-lifecycle.yml
- type: Conformance
  url: conformance/gcash-conformance.yml
- type: WellKnown
  url: well-known/gcash-well-known.yml
- type: SecurityTxt
  url: well-known/gcash-security.txt
- type: Security
  url: https://gcash.com/vulnerability-disclosure-program/policy
- type: VulnerabilityDisclosure
  url: security/gcash-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/gcash-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence