MoMo

MoMo is Vietnam's largest mobile-money and e-wallet platform, operated by Online Mobile Services Joint Stock Company (Cong ty Co phan Dich vu Di dong Truc tuyen, "M_Service"), founded in 2007 and licensed by the State Bank of Vietnam for e-wallet, money transfer and collection/disbursement services. Alongside the consumer wallet it runs a merchant payments business whose public developer surface at developers.momo.vn documents the All-in-One (AIO v2) Payment Gateway for wallet, domestic ATM card, credit card, Apple Pay, Google Pay, Buy Now Pay Later, POS Quick Pay and static/dynamic QR acceptance, single and batch disbursement, collection links, and tokenised one-click and subscription payments. It also publishes a Business Page OpenAPI, a Voucher Distribution API and a Mini App Open Platform for third-party apps embedded inside the MoMo app. Integration is HMAC-SHA256 signed with RSA and AES payload encryption, uses requestId-based idempotency and server-to-server IPN callbacks, and is distributed as fourteen public Postman collections plus first-party PHP, Java and mobile SDKs.

MoMo publishes 1 API on the APIs.io network: All-in-One Payment Gateway (AIO v2). Tagged areas include Payments, Mobile Payments, Fintech, Digital Wallet, and Payment Gateway.

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

MoMo’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, signup flow, authentication, and 27 more developer resources.

50.6/100 developing ▬ flat Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-09-01 · rubric v0.17.2
4 APIs
PaymentsMobile PaymentsFintechDigital WalletPayment GatewayQR PaymentsDisbursementBuy Now Pay LaterE-CommerceVietnam

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-01 · rubric v0.17.2
Composite quality — 50.6/100 · developing
Contract Quality 9.1 / 21
Developer Ergonomics 14.2 / 17
Access Clarity 4.9 / 17
Operational Transparency 2.9 / 11
Contract Governance 1.9 / 10
Discoverability 6.3 / 9
Regulatory Posture 9.4 / 15
Agent readiness — 28/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 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/momo: 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 4

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

MoMo All-in-One Payment Gateway (AIO v2)

The MoMo All-in-One (AIO v2) merchant payment gateway. One integration covers MoMo e-wallet, domestic ATM card, credit card, Apple Pay, Google Pay, Buy Now Pay Later, Quick Pay ...

MoMo Business Page OpenAPI

Server-to-server API for operating a MoMo Business Page: list and read managed pages, update page detail, images, logo, opening times, utilities and ambiences, publish and read ...

MoMo Voucher Distribution API

API for creating and distributing promotion campaigns and voucher codes to MoMo users, and for reconciling redemption. Create and update campaigns, upload voucher codes by file,...

MoMo Mini App Open API

The M_Service Open Platform server-to-server API used by Mini Apps embedded in the MoMo app. Exchange a user authorisation code for a short-lived access token, read the user pro...

Pricing Plans 1

Published pricing tiers and plan structures.

Momo Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Momo Rate Limits

0 limits

RATE LIMITS

Event Specifications 1

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

Momo Webhooks

ASYNCAPI

Security Posture 2

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

Momo Authentication

7 schemes

SECURITY

Momo Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Momo Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Scroll for all 8

Build 6

SDKs, sample code, and the tooling you integrate with

Access & Security 4

Authentication, authorization, and security posture

Operate 4

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: momo
name: MoMo
description: MoMo is Vietnam's largest mobile-money and e-wallet platform, operated by Online Mobile Services Joint Stock
  Company (Cong ty Co phan Dich vu Di dong Truc tuyen, "M_Service"), founded in 2007 and licensed by the State Bank of Vietnam
  for e-wallet, money transfer and collection/disbursement services. Alongside the consumer wallet it runs a merchant payments
  business whose public developer surface at developers.momo.vn documents the All-in-One (AIO v2) Payment Gateway for wallet,
  domestic ATM card, credit card, Apple Pay, Google Pay, Buy Now Pay Later, POS Quick Pay and static/dynamic QR acceptance,
  single and batch disbursement, collection links, and tokenised one-click and subscription payments. It also publishes a
  Business Page OpenAPI, a Voucher Distribution API and a Mini App Open Platform for third-party apps embedded inside the
  MoMo app. Integration is HMAC-SHA256 signed with RSA and AES payload encryption, uses requestId-based idempotency and server-to-server
  IPN callbacks, and is distributed as fourteen public Postman collections plus first-party PHP, Java and mobile SDKs.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
image: https://homepage.momocdn.net/img/momo-amazone-s3-api-241029082636-638657871963540172.jpg
url: https://raw.githubusercontent.com/api-evangelist/momo/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Payments
- Mobile Payments
- Fintech
- Digital Wallet
- Payment Gateway
- QR Payments
- Disbursement
- Buy Now Pay Later
- E-Commerce
- Vietnam
tags_raw:
- Payments
- Mobile Payments
- FinTech
- Digital Wallet
- Payment Gateway
- QR Payments
- Disbursement
- Buy Now Pay Later
- E-commerce
- Vietnam
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: momo:aio-payment-gateway
  name: MoMo All-in-One Payment Gateway (AIO v2)
  description: The MoMo All-in-One (AIO v2) merchant payment gateway. One integration covers MoMo e-wallet, domestic ATM card,
    credit card, Apple Pay, Google Pay, Buy Now Pay Later, Quick Pay POS scanner, collection links and static/dynamic QR acceptance,
    plus transaction query, two-step capture/cancel confirm, reverse and refund, tokenisation (account binding and subscription)
    and single/batch disbursement. All calls are POST JSON signed with HMAC-SHA256; results are pushed back over IPN.
  humanURL: https://developers.momo.vn/v3/docs/payment/guides/payment-with-aio/
  baseURL: https://payment.momo.vn/v2/gateway/api
  tags:
  - Payments
  - Payment Gateway
  - Refunds
  - Disbursement
  - Tokenization
  properties:
  - type: Documentation
    url: https://developers.momo.vn/v3/docs/payment/guides/payment-with-aio/
  - type: APIReference
    url: https://developers.momo.vn/v3/docs/payment/api/wallet/onetime/
  - type: Postman
    url: https://developers.momo.vn/v3/docs/payment/api/other/postman/
  - type: Sandbox
    url: https://developers.momo.vn/v3/docs/payment/onboarding/test-instructions/
- aid: momo:business-page-openapi
  name: MoMo Business Page OpenAPI
  description: 'Server-to-server API for operating a MoMo Business Page: list and read managed pages, update page detail,
    images, logo, opening times, utilities and ambiences, publish and read posts and their comments, read ratings and reviews,
    build customer segments, register and send customer-care and automated notification messages, and pull page view/interaction/payment
    reports. Authenticated with a Partner Id plus an X-API-KEY scoped to the permission groups granted in the MoMo for Business
    portal.'
  humanURL: https://developers.momo.vn/v3/docs/business-page/overall/
  baseURL: https://business.momo.vn/api
  tags:
  - Business Page
  - Messaging
  - Content
  - Reporting
  properties:
  - type: Documentation
    url: https://developers.momo.vn/v3/docs/business-page/overall/
  - type: GettingStarted
    url: https://developers.momo.vn/v3/docs/business-page/start/
- aid: momo:voucher-distribution
  name: MoMo Voucher Distribution API
  description: API for creating and distributing promotion campaigns and voucher codes to MoMo users, and for reconciling
    redemption. Create and update campaigns, upload voucher codes by file, query campaign and voucher-code status, and post
    redemption results back to MoMo. Authenticated with clientId/clientSecret exchanged for a 24-hour bearer access token;
    every request carries an X-Request-Id UUID.
  humanURL: https://developers.momo.vn/v3/docs/voucher-distribution/overall/
  baseURL: https://business.momo.vn/api
  tags:
  - Vouchers
  - Promotions
  - Loyalty
  properties:
  - type: Documentation
    url: https://developers.momo.vn/v3/docs/voucher-distribution/overall/
  - type: GettingStarted
    url: https://developers.momo.vn/v3/docs/voucher-distribution/integration-documentation/
- aid: momo:mini-app-open-api
  name: MoMo Mini App Open API
  description: The M_Service Open Platform server-to-server API used by Mini Apps embedded in the MoMo app. Exchange a user
    authorisation code for a short-lived access token, read the user profile fields the user consented to share, and push
    notifications into the MoMo app. Requests carry an OAuth 2.0-style bearer JWT plus an OP-Signature (SHA256withRSA over
    data + M-Timestamp + openSecretKey) and optional AES payload encryption under an RSA-wrapped symmetric key.
  humanURL: https://developers.momo.vn/v3/docs/app-center/development-guideline/components-api-sdk/open-api/api-specifications/
  baseURL: https://openapi.momo.vn/gateway/open/v1
  tags:
  - Mini App
  - Identity
  - Notification
  tags_raw:
  - Mini App
  - Identity
  - Notifications
  properties:
  - type: Documentation
    url: https://developers.momo.vn/v3/docs/app-center/development-guideline/components-api-sdk/open-api/api-specifications/
  - type: APIReference
    url: https://developers.momo.vn/v3/docs/app-center/development-guideline/components-api-sdk/open-api/catalog-functions/
  - type: Authentication
    url: https://developers.momo.vn/v3/docs/app-center/development-guideline/components-api-sdk/open-api/open-api-security/
common:
- type: DomainSecurity
  url: security/momo-domain-security.yml
- type: Website
  url: https://www.momo.vn/
- type: DeveloperPortal
  url: https://developers.momo.vn/
- type: Documentation
  url: https://developers.momo.vn/v3/docs/payment/guides/home/
- type: APIReference
  url: https://developers.momo.vn/v3/docs/payment/api/wallet/onetime/
- type: GettingStarted
  url: https://developers.momo.vn/v3/docs/payment/onboarding/integration-process/
- type: Support
  url: https://developers.momo.vn/v3/docs/app-center/technical-support/
- type: HelpCenter
  url: https://www.momo.vn/hoi-dap
- type: Blog
  url: https://www.momo.vn/blog
- type: GitHubOrganization
  url: https://github.com/momo-wallet
- type: SignUp
  url: https://business.momo.vn/
- type: TermsOfService
  url: https://www.momo.vn/dieu-khoan-dieu-le
- type: PrivacyPolicy
  url: https://www.momo.vn/chinh-sach-quyen-rieng-tu
- type: Postman
  url: https://developers.momo.vn/v3/docs/payment/api/other/postman/
- type: Packages
  url: packages/momo-packages.yml
- type: SDKs
  url: packages/momo-packages.yml
- type: Authentication
  url: authentication/momo-authentication.yml
- type: OAuthScopes
  url: scopes/momo-scopes.yml
- type: Conventions
  url: conventions/momo-conventions.yml
- type: Idempotency
  url: conventions/momo-conventions.yml
- type: ErrorCatalog
  url: errors/momo-error-codes.yml
- type: DeclineCodes
  url: errors/momo-decline-codes.yml
- type: Webhooks
  url: asyncapi/momo-webhooks.yml
- type: Sandbox
  url: sandbox/momo-sandbox.yml
- type: CLI
  url: cli/momo-cli.yml
- type: Components
  url: components/momo-components.yml
- type: DataModel
  url: data-model/momo-data-model.yml
- type: ChangeLog
  url: changelog/momo-changelog.yml
- type: Lifecycle
  url: lifecycle/momo-lifecycle.yml
- type: Conformance
  url: conformance/momo-conformance.yml
- type: Compliance
  url: conformance/momo-conformance.yml
- type: Plans
  url: plans/momo-plans-pricing.yml
- type: RateLimits
  url: rate-limits/momo-rate-limits.yml
- type: LLMsTxt
  url: llms/momo-llms.txt
x-enrichment:
  date: '2026-08-26'
  status: enriched
  artifacts_added: 35
  pass: local-v1

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