SignetsSIGNETS
CARDSPROGRAMMABLE · VIRTUAL · INSTANT

Every card your
agent needs

Issue virtual Visa cards in milliseconds via API. Scope them to a merchant, cap the spend, set an expiry — or keep them disposable. Full control without touching your banking stack.

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SignetsVisa
•••• •••• •••• 4891
Exp
08/27
CVV
•••
Cardholder
Openclaw
Openclaw
Card Type
single_use
Balance
$500.00

Card Types

SINGLE-USE

Disposable cards

Issue a card for one transaction. It expires the moment the charge clears — or if it goes unused. Zero residual exposure.

LifecycleSingle transaction
ExpiryOn authorization
Use caseAd buys, SaaS trials, one-off purchases
RECURRING

Subscription cards

Lock a card to a single merchant for repeating charges. Set a monthly cap and let the agent handle renewals autonomously.

LifecycleUntil cancelled
BillingPer-cycle limits enforced
Use caseSaaS subscriptions, recurring vendors
MERCHANT-LOCKED

Scoped cards

Bind a card to a specific merchant or MCC category. Charges outside the scope are declined at the network level.

ScopeMerchant ID or MCC code
Decline ruleNetwork-level enforcement
Use caseAd platforms, cloud vendors, marketplaces
BUDGET-CAPPED

Spend-limited cards

Hard cap on total or per-transaction spend. When the limit is reached, the card is automatically frozen — no overage possible.

Limit typesPer-transaction, daily, total
EnforcementHard block at authorization
Use caseCampaign budgets, agent allowances

Policy Controls

Every card carries a policy. Define it at issue time — the network enforces it, not your application code.

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Spend limits

Set per-transaction, daily, or lifetime caps. Hard-blocked at the network — no soft declines.

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MCC locks

Restrict cards to specific merchant category codes. Block entire categories like gambling, crypto, or wire transfers.

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Time windows

Cards only authorize within defined time ranges. Useful for session-scoped agents or business-hours enforcement.

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Approval workflows

Route charges above a threshold to a human or automated approver before authorization proceeds.

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Merchant allowlists

Explicitly allowlist or blocklist individual merchants by ID. Layer on top of MCC rules for fine-grained control.

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Velocity controls

Cap the number of transactions per hour or day. Prevents runaway agents from hammering a merchant.

Issue a Card

One API call. Card number, CVV, and expiry returned immediately. Attach a policy and hand it to your agent.

POST /v1/cards
{
  "type": "single_use",
  "currency": "usd",
  "spending_controls": {
    "spending_limits": [
      {
        "amount": 5000,
        "interval": "all_time"
      }
    ],
    "allowed_merchant_categories": [
      "advertising_services"
    ]
  },
  "metadata": {
    "agent": "openclaw-prod",
    "run_id": "run_8f2a91"
  }
}
RESPONSE
{
  "id": "ic_01j9...",
  "number": "4111 1111 1111 4891",
  "exp_month": 8,
  "exp_year": 2027,
  "cvv": "•••",
  "status": "active"
}

Issue your first card in minutes

Free plan includes $500 total spend cap. No credit card required.

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