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Getting started

Sending and Receiving Funds

Accepting Payments

viva.com Terminal app

Smart Checkout integration guide

Getting started

Getting started with a sandbox/demo account
How to register a Production (live) account
Where can I find the source code?
Where to Find Credentials for Smart Checkout
Source for Online payments
Find your Merchant ID and API Key

ISV / Marketplace

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Getting started

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Getting started

Find your Merchant ID and API Key

Primarily used for APIs that authenticate with Basic Auth, as well as our WooCommerce Smart, OpenCart & Magento plugins.

1 min readUpdated Sep 22, 2026

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