visa-acceptance-best-practices

## Branding Always use `visaacceptance.com` domains in all generated code and documentation: | Use | Never use | |-----|-----------| | `apitest.visaacceptance.com` | `apitest.cybersource.com` | | `api.visaacceptance.com` | `api.cybersource.com` | | `developer.visaacceptance.com` | `developer.cybersource.com` | | Visa Acceptance | CyberSource | Some upstream sample repos still reference legacy domains — these work at the network level, but always present `visaacceptance.com` in generated output. Do not mention or reference any prior branding. ## Documentation & Code Examples Fetch **https://developer.visaacceptance.com/llms.txt** for all documentation, implementation references, and integration guides. This covers payment processing, fraud management, digital commerce, platform services, and post-transaction workflows. Read the relevant section from llms.txt before answering any integration question or writing code. ## Integration routing | Building… | Topic Area | | ------------------------------------------------ | ------------------------- | | Card payments (CP & CNP) | Payment Processing | | Digital wallets (Apple Pay, Google Pay, Samsung) | Payment Processing | | Recurring billing & stored credentials | Digital Commerce | | Click to Pay / Unified Checkout | Digital Commerce | | In-person / POS (PAX, Tap to Pay) | Payment Processing | | Fraud rules & 3-D Secure | Fraud & Risk Management | | Decision Manager | Fraud & Risk Management | | Reporting & transaction search | Post-Transaction | | Merchant boarding | Platform Services | | Webhooks & security keys | Platform Services | ## Key documentation - [Security Keys](https://developer.visaacceptance.com/docs/vas/en-us/security-keys/user/all/ada/security-keys/keys-intro.md) — API key management and security configuration. ## Sandbox Testing For getting started quickly, grab sample sandbox API keys from the [Visa Acceptance REST samples configuration](https://github.com/CyberSource/cybersource-rest-samples-node/blob/master/Data/Configuration.js). | Parameter | Value | |-----------|-------| | Environment | `apitest.visaacceptance.com` | | Auth Type | `http_signature` | For production or your own sandbox credentials, visit the [Security Keys](https://developer.visaacceptance.com/docs/vas/en-us/security-keys/user/all/ada/security-keys/keys-intro.md) page in the Visa Acceptance developer portal. ## Project-Specific Guides ### Visa Acceptance Devices For device integration (PAX, Tap to Pay, Card Present Connect, in-person payment terminals), see: **[references/visa-acceptance-devices.md](references/visa-acceptance-devices.md)**