Launch your card program under your own brand
The manual of Web3Card, the white-label software for Visa cards funded by stablecoins. From the first sign-up to the API.
Web3Card is white-label software for card programs. Your company runs a program of Visa cards funded by stablecoins, with your brand on the app and your own domain in the address bar. Your users create an account and manage their cards in an app that looks like yours.
This documentation is the user manual of the platform. It follows the path a new company takes, from the first visit to advanced use of the API, and it grows together with the product. A chapter is published when the feature it describes is ready.
Version 2 of Web3Card is opening in stages, and this manual grows with it. Account creation and sign-in are finished in both panels and are fully documented here. The next chapters (identity, wallets, cards, branding, your own domain and the API reference) are listed in From sign-up to launch and are published as each part is finished.
What Web3Card is
Web3Card is a technology provider. It delivers three things:
- Software. A panel for your company and an app for your users, both ready to carry your brand.
- Infrastructure. Hosting, security, account access and the connection to the card networks through partner institutions.
- Integration. One API to operate your card program from your own systems.
Web3Card is not a bank or a financial institution. Cards are issued by licensed and regulated partner institutions within the Visa network.
Two panels, one platform
The platform has two sides. Each one has its own address, its own accounts and its own audience.
| Business | Personal | |
|---|---|---|
| Who uses it | The company that runs the card program, and its team | The end user of each company |
| What it is for | Set up and operate the program | Create an account and use the card |
| Address | business.web3card.dev, the same for every company | The company's own domain, such as cards.yourcompany.com |
| Brand on the screen | Web3Card | The company's brand |
Read How the platform works for the full picture.
How this documentation is organized
| Chapter | What it covers | Status |
|---|---|---|
| The platform | The two panels, what white-label means, and the path from sign-up to launch | Published |
| Card playground | Design a sample card in 3D, see what each card action does and preview your users' app | Preview of screens in development |
| Flow builder | Pick a token on a network and see the route it takes to your wallet, your program contract or a Visa card, with the API calls for each step | Illustrative: API v2 is planned |
| Cards | The countries and regions where cards don't work, and where they can be used with Apple Pay | Published |
| Account access | Creating an account, signing in and out, resetting the password, replacing the authenticator, security rules and messages | Published |
| API | What API v2 is and how it is designed. The reference of API v1, with code examples, is kept as legacy | v2: overview published, reference planned. v1: legacy |
| Identity, wallets, cards, branding, domain, team | The next steps of the journey | To come. See From sign-up to launch |
New to the terms used here? The glossary explains each one in a sentence.
Languages
This documentation is available in English and in Portuguese (Brazil). Use the language menu at the top of the page to switch. The screens of the platform are in English, so button and field names are quoted in English in both versions.
For AI assistants
The full text of this documentation is also published as plain text, ready to be read by language models:
- llms.txt: the index of pages, with a one-line summary of each
- llms-full.txt: every page in a single file
Need help?
Write to [email protected] or visit web3card.dev.