How it works How to use One QR Get the app USDXX Payments Ecosystem FAQ Contact

Built for the Indexx ecosystem

The digital dollar
for Indexx.

Buy USDXX by card or PayPal. Spend it across every Indexx app. 1 USDXX is always $1.

Open Indexx Pay See how it works

One Indexx account. No separate sign-up.

USDXX is the digital dollar. Indexx Pay is where you buy and spend it. LYNXX is the company behind USDXX.

indexx pay

Preview

USDXX balance

12,480.25 USDXX

Account

Indexx member

Status

Connected

Indexx ecosystem

One account, connected

USDXX Earn

Up to 12% a yearComing soon

Put your USDXX to work. The longer you commit, the more you earn.

3 months

10%

6 months

12%

12 months

Proposed rates, not live yet. Calculate your earnings ↗

Simple by design

Three steps. That's it.

Use the Indexx account you already have. No new sign-up.

Sign in

Use your Indexx account. New to Indexx? Sign up once and it works everywhere.

Buy USDXX

Pay by card or PayPal. 1 USDXX is always $1.

Spend it

Use it in Indexx apps like Eeny Meeny Miny Moe, ShoperPal and Academy.

Meet USDXX

Buy it. Send it. Get paid.

USDXX moves like a message — pick a merchant or a friend, and it lands in seconds. No routing numbers, no waiting days.

Learn more at usdxxlynx.com

Buy USDXX

Add funds with a card or connected payment method and convert straight into USDXX.

Send to anyone

Send USDXX to anyone by their email. It lands in their balance in seconds. In the Indexx Pay app.

Get paid instantly

Show your QR or scan theirs to settle on the spot. In the Indexx Pay app.

USDXX lives in the Indexx Pay app

Download the mobile app to buy, send, and scan to pay with USDXX.

Get the app

One connected view

Know where your money stands.

Indexx Pay reads account information from the same platform infrastructure behind the Indexx ecosystem, giving you a focused home for payment activity.

Wallet balances

See available wallet balances associated with your Indexx profile.

Bitcoin Yay nuggets

View your Bitcoin Yay nugget balance alongside your wallet overview.

Payment connections

Manage cards and see the state of your connected payment options.

Ecosystem access

Move from your payment hub into participating Indexx products with one identity.

✓

Your account journey

Return securely to Indexx Pay

Access your payment dashboard

Shared identity

Connected, without another password.

Indexx Pay does not create a separate identity system. Authentication happens through Indexx, and your session returns you to the Pay dashboard. That means fewer credentials and a consistent account across the ecosystem.

✓ Shared Indexx account✓ Secure hosted sign-in✓ Clear session flow

Payment methods

Pay by card or PayPal.

That's all you need to buy USDXX.

Available

Card

Visa, Mastercard, Amex and more. Your USDXX arrives in seconds.

Available

PayPal

Pay with your PayPal account. Your USDXX arrives in seconds.

Frequently asked

A few things to know.

What is USDXX?+

A digital dollar. 1 USDXX is always worth 1 US dollar.

Is it real money yet?+

Not yet. USDXX is still in its pilot, so no real money is involved today.

How do I buy USDXX?+

Where can I use it?+

In Indexx apps: Eeny Meeny Miny Moe, ShoperPal, Academy, Exchange, Bitcoin Yay and Wall Street.

Do I need a new account?+

No. Use your Indexx account. New to Indexx? Sign up once and it works everywhere.

How do I get help?+

Use the Contact page. Include your email and roughly when you paid. Never share your password.

Still have a question?

Our support form follows the same workflow used by Bitcoin Yay.

Where USDXX works

One balance. Spend it across Indexx.

Buy USDXX once in Indexx Pay, then use that same balance on these platforms with the Indexx account you already have. No new card details, no second top-up.