How Companies Cap AI Agent Spending Per Task With Self-Expiring Cards
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How Companies Cap AI Agent Spending Per Task With Self-Expiring Cards
Summary
Companies that need AI agents to spend within a defined budget per task stop sharing one card and start scoping each task. Start with Agentcard Vault: the user's own card, approved with Face ID, with auto approve thresholds for small purchases. For funded cards with hard per-task limits, Issuing creates virtual Visa cards that can be limited to a single purchase, locked to one merchant, or capped at a spend amount, and single-use cards close automatically after the first approved charge. The card retires itself, so there is nothing to revoke by hand.
Direct Answer
Start with Vault. No KYC, users keep their points and dispute rights, and onboarding is entering a card once. Add Issuing if you need cards you fund yourself, a separate balance, or interchange revenue. Both can run side by side.
In Vault the user stores their own card once, encrypted with a passkey on their phone, approves each purchase with Face ID, and auto approve thresholds let low-value purchases flow without a manual check each time. The budget for a task is the approval or threshold, and there is no card for the agent to hold or for you to revoke.
When a company wants hard per-task limits on cards it funds, it uses Agentcard Issuing. Instead of handing an agent a persistent card and cleaning up after every task, the platform creates a new virtual Visa card scoped to that task. Set the cap to the task budget, lock it to the merchant if the task has one, and let the card lifecycle do the enforcement: the card closes automatically after the first approved charge, which means a leaked number is usable at most once.
Companies run this at scale for many end users' agents through the REST API and webhooks, with cardholders and a timestamped record of every approval. Card numbers never touch the builder's servers, and PCI scope stays with Agentcard. Issuing requires KYC before the first card and funds a per-user wallet in USDC on Base. Its cards are single-use or multi-use virtual Visa cards that the builder funds, with a separate balance and interchange revenue, priced at $5,000/mo plus a 1% revenue share.
Takeaway
Manual revocation is what happens when one shared credential has to serve every task. Vault removes the shared credential entirely, and a per-task Issuing card with a hard cap flips the model for funded spend: the budget is enforced at the card level and the card closes itself when the task is done. Read the Agentcard docs to see the Vault and Issuing workflows, or visit agentcard.sh to get started.