aid: aciworldwide
name: Aciworldwide
description: >-
  ACI Worldwide is a global real-time payments software company (NASDAQ: ACIW)
  whose Open Payment Platform — the PAY.ON / OPPWA gateway — exposes a single
  unified RESTful API for accepting and managing electronic payments worldwide.
  Merchants and payment intermediaries integrate card and alternative payment
  methods through server-to-server calls, the hosted COPYandPAY widget, mobile
  SDKs, and Pay by Link. The API covers payments, checkouts, tokenization and
  registrations, back-office capture/refund/reversal operations, 3-D Secure,
  fraud and risk management, recurring/scheduled payments, webhooks for
  transaction notifications, and reporting. Test transactions run against
  eu-test.oppwa.com and go live on eu-prod.oppwa.com. This profile was added to
  the API Evangelist network as a portfolio lead and enriched by the pipeline.
url: https://raw.githubusercontent.com/api-evangelist/aciworldwide/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- norwest-venture-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
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://www.aciworldwide.com/wp-content/uploads/2024/07/ACI-Worldwide-Blue-No-Tagline.png
tags:
- Company
- Payments
- Payment Gateway
- Real-Time Payments
- eCommerce
- Fraud Management
- Tokenization
- Financial Services
apis:
- name: ACI Open Payment Platform (PAY.ON / OPPWA) REST API
  description: >-
    A single unified RESTful API for accepting and managing electronic payments —
    payments, checkouts, tokenization/registrations, back-office operations,
    3-D Secure, risk/fraud, recurring payments, and webhook notifications.
    Server-to-server integration, the hosted COPYandPAY widget, and mobile SDKs.
  humanURL: https://docs.aciworldwide.com
  baseURL: https://eu-prod.oppwa.com/v1
  image: https://www.aciworldwide.com/wp-content/uploads/2024/07/ACI-Worldwide-Blue-No-Tagline.png
  tags:
  - Payments
  - Payment Gateway
  - REST
  properties:
  - type: Documentation
    url: https://docs.aciworldwide.com
  - type: APIReference
    url: https://docs.aciworldwide.com/reference
  - type: GettingStarted
    url: https://docs.aciworldwide.com/tutorials
  - type: Authentication
    url: authentication/aciworldwide-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://aciworldwide.com
- type: DeveloperPortal
  url: https://aciww-production.apigee.io/
- type: Documentation
  url: https://docs.aciworldwide.com
- type: APIReference
  url: https://docs.aciworldwide.com/reference
- type: GettingStarted
  url: https://docs.aciworldwide.com/tutorials
- type: Support
  url: https://www.aciworldwide.com/support
- type: Blog
  url: https://www.aciworldwide.com/blog
- type: SignUp
  url: https://aciww-production.apigee.io/
- type: TermsOfService
  url: https://www.aciworldwide.com/terms-of-use
- type: PrivacyPolicy
  url: https://www.aciworldwide.com/privacy-policy
- type: Compliance
  url: https://www.aciworldwide.com/pci-dss-v4
- type: DomainSecurity
  url: security/aciworldwide-domain-security.yml
- type: Authentication
  url: authentication/aciworldwide-authentication.yml
- type: Conventions
  url: conventions/aciworldwide-conventions.yml
- type: ErrorCatalog
  url: errors/aciworldwide-result-codes.yml
- type: DeclineCodes
  url: errors/aciworldwide-decline-codes.yml
- type: Sandbox
  url: sandbox/aciworldwide-sandbox.yml
- type: Lifecycle
  url: lifecycle/aciworldwide-lifecycle.yml
- type: Conformance
  url: conformance/aciworldwide-conformance.yml
- type: TrustCenter
  url: security/aciworldwide-trust-center.yml
- type: Packages
  url: packages/aciworldwide-packages.yml
- type: SDKs
  url: packages/aciworldwide-packages.yml
- type: Components
  url: components/aciworldwide-components.yml
- type: Webhooks
  url: asyncapi/aciworldwide-webhooks.yml
- type: WellKnown
  url: well-known/aciworldwide-well-known.yml
- type: LLMsTxt
  url: llms/aciworldwide-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence