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Programmable cards for AI agents

Issue virtual cards your agents can use to complete checkouts and pay for services. Control where they can spend, how much they can spend, and see every transaction as it happens.

ProxyOSProxyOS
Visa
•••• •••• •••• 1234
EXP
12/25
CVV
•••
AGENT
research-agent
TYPE
multi_use
ACTIVE
LIMIT
$2,500.00
ProxyOSProxyOS
Visa
•••• •••• •••• 2345
EXP
10/25
CVV
•••
AGENT
travel-agent
TYPE
multi_use
ACTIVE
LIMIT
$10,000.00
ProxyOSProxyOS
Visa
•••• •••• •••• 4891
EXP
08/25
CVV
•••
AGENT
shopping-agent
TYPE
single_use
ACTIVE
LIMIT
$5,000.00
TRUSTED BY
Merlin
BallerBalancer

FEATURES

Every guardrail you need, none of the friction.

01

Flexible Card Types

Single-use cards auto-close after one charge. Multi-use cards support velocity limits, TTL, active hours, and merchant locks. Issue in under 50ms via API.

02

Custom Spend Policies

Define per-agent policies with spend limits, merchant restrictions, and approval workflows. Require intent declaration before card access. Auto-freeze on policy violations.

03

Real-time Tracking

Stream every event via webhooks: authorizations, settlements, anomalies. Full audit trail with intent correlation. Export compliance reports on demand.

04

Dispute Management

Handle chargebacks and disputes with full transaction evidence. Intent attestations provide proof of authorized purchases. Automated dispute response workflows.

HOW IT WORKS

Built for true autonomous checkout

Issue just-in-time single or multi-use funded virtual cards to AI agents, letting them complete purchases autonomously under rules you define.

// Create a spending policy
await fetch("/v1/policies", {
  method: "POST",
  body: JSON.stringify({
    name: "shopping-agent",
    limitPerAuth: 10000,
    limitPerDay: 50000,
    requireAttestation: true
  })
});
01

Set policies

Register your agent and define spend limits, allowed merchants, categories, and velocity controls.

02

Intent declaration

Before any purchase, agent declares what it wants to buy, where, and for how much.

03

Card issuance

If intent passes your policies, a virtual card is auto-created and locked to the declared intent.

04

Checkout

Agent retrieves card credentials (PAN, CVV, expiry) and completes the purchase at checkout.

05

Auto audit

Every transaction is automatically verified against the declared intent. Mismatches are flagged.

Integration

Go live in an afternoon

SANDBOX → PRODUCTION
Step 01

Create your account

  • ▸

    Sign up and complete KYB

  • ▸

    Get your API keys

Step 02

Configure and test

  • ▸

    Set spending policies for your agents

  • ▸

    Test transactions in sandbox

Step 03

Deploy to production

  • ▸

    Agents start transacting autonomously

  • ▸

    Monitor every purchase in real-time

Ready to start building?

Get your API keys in minutes

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ProxyOSThe financial OS for AI agents

ProxyOS is not a bank. ProxyOS is a financial technology company. Virtual cards are issued by our banking partners.