Cards

Virtual cards for your team. And for your customers.

Issue virtual Visa and Mastercard cards in seconds, funded from a dedicated USDT card balance. Give them to employees, issue them to your customers from inside your product, or hand one to an AI agent.

{{ brand.name }}Virtual
CardholderAMINA DIALLO•••• 2048
Try a brand
One card platform

Three ways to put cards to work

{{ w.tag }}{{ w.num }}

{{ w.t }}

{{ w.d }}

{{ w.cta }}
Customer cards

A card in your product, a new revenue line for you

{{ u.t }}

{{ u.d }}
How it works

From sign-up to an active card

{{ cur.endpoint }}{{ cur.status }}
{{ cur.code }}
Spend controls

Every card follows your rules

{{ f.t }}

{{ f.d }}
NewBuilt for AI agents

Let your AI agents pay. Keep the final say.

Give an agent a card loaded with exactly what it may spend. Set a daily or per-transaction limit, and freeze or terminate the card at any time.

{{ l.n }}
procurement paid $320.00Within its limit
Funding

A card balance in USDT, kept apart

Top up your card balance with USDT on the TRON network (TRC20). It is separate from your collection balances, so card spending never touches the money you collect. Each card is then funded from it in US dollars.

See card pricing
USDT · TRC20 Card balance Card spend
Who does what

You own the customer. We carry the complexity.

You
—{{ y }}
Monerails and our partners
—{{ y }}

Issue your first card today

Team cards are live as soon as your account is verified. For customer cards, we will propose a setup and a launch timeline.

Open an accountSee pricing
Cards

Virtual cards for your team. And for your customers.

Issue virtual Visa and Mastercard cards in seconds, funded from a dedicated USDT card balance. Give them to employees, issue them to your customers from inside your product, or hand one to an AI agent.

NimbusVirtual
CardholderAMINA DIALLO•••• 2048
Try a brand
One card platform

Three ways to put cards to work

Customer cards

A card in your product, a new revenue line for you

Fintech apps and neobanks

Add a US dollar card to your app without becoming an issuer.

Marketplaces and freelance platforms

Pay sellers and freelancers straight to a card they can spend right away.

SaaS platforms

Give your customers a card to pay for expenses from inside your tool.

Ad agencies

One card per client for Meta, Google or TikTok Ads, with budgets kept apart.

Rewards and cashback

Credit bonuses, refunds or cashback to a card that works anywhere.

Crypto-native apps

Give users a US dollar card, funded from your USDT cards balance.

How it works

From sign-up to an active card

POST /v1/cardholders201 Created
const holder = await fetch(`${API}/cardholders`, {
  method: 'POST', headers,   // Bearer mr_test_…
  body: JSON.stringify({
    type: 'customer',
    first_name: 'Amina', last_name: 'Diallo',
    email: 'amina@example.com', phone: '+14165550142',
    country: 'CA',
  }),
}).then((r) => r.json());

// → then POST /v1/cardholders/{id}/verification
Spend controls

Every card follows your rules

Limits

Per transaction or per day, on every card, including agent cards.

Fund and withdraw

Load a card with what it needs, and move unused money back to your cards balance.

Declines by webhook

Know at once when a payment is refused, with card.authorization_declined.

Instant freeze

Freeze a card in one call, unfreeze it or terminate it just as fast.

Single-use cards

A card for one purchase, closed as soon as it is used.

Transactions

Every payment, refund and reversal tied to its card and its cardholder or agent.

NewBuilt for AI agents

Let your AI agents pay. Keep the final say.

Give an agent a card loaded with exactly what it may spend. Set a daily or per-transaction limit, and freeze or terminate the card at any time.

Claude
ChatGPT
Cursor
LangChain
Vercel AI SDK
CrewAI
procurement paid $320.00Within its limit
Funding

A card balance in USDT, kept apart

Top up your card balance with USDT on the TRON network (TRC20). It is separate from your collection balances, so card spending never touches the money you collect. Each card is then funded from it in US dollars.

See card pricing
USDT · TRC20 Card balance Card spend
Who does what

You own the customer. We carry the complexity.

You
—Your app and your customer relationship —What you charge your customers, billed on your side —First-line support for your customers —The decision to offer a card to each customer
Monerails and our partners
—Issuing on the Visa and Mastercard networks —Identity verification (KYC) of your customers —Card data, stored by a PCI DSS certified partner —Disputes, fraud monitoring and 3-D Secure —A dedicated card balance, topped up in USDT (TRC20)

Issue your first card today

Team cards are live as soon as your account is verified. For customer cards, we will propose a setup and a launch timeline.