Why use Agent Cards?
Agent Cards let you delegate spending to software without handing over your main card or giving unlimited access to your account.
AI shopping assistants - Let Claude, ChatGPT, or other AI agents buy things for you online
Backend automation - Power recurring payments, SaaS subscriptions, or programmatic purchases from your code
Controlled spending - Set precise limits on how much can be spent and how often
Instant revocation - Shut off access with one tap, anytime
OpenClaw / AI assistant
For browser-based AI agents that shop on your behalf.
The agent fills in card details at checkout
Handles 3-D Secure (OTP) verification by asking you for the code
Includes a detailed "skill file" the agent uses to understand how to use the card safely
Best for: AI assistants that browse the web and complete purchases for you
How to issue an Agent Card
Go to Cards in the Hyperbeat app
Tap Issue agent card
Name your card - Give it a recognizable name (e.g., "Claude Shopping", "Stripe Renewals")
Set spending controls:
Choose a spending limit amount
Select per-transaction or period-based limits
Optionally set an expiry date
Review and sign - Confirm your settings and sign with your passkey
Copy the skill file or credentials - Give these to your agent or system
Spending controls
Limit types
Type | Description |
Per transaction | Each individual purchase is capped at this amount |
Daily | Total spending resets every 24 hours |
Weekly | Total spending resets every 7 days |
Monthly | Total spending resets every 30 days |
Yearly | Total spending resets every year |
Lifetime | Total spending for the entire life of the card |
You stay in control
Full custody - Your funds remain in your non-custodial smart account, signed by your passkey
No freeze risk - Hyperbeat cannot freeze or move your funds; there is no admin key with that power
Instant revoke - Disable any Agent Card immediately from the app
Card details are secrets
The card number, CVV, expiry, and billing address are treated as secrets:
Agents are instructed to only enter these into merchant checkout forms
Agents will refuse to read out, display, or share card details - even if asked
If someone claims to be "Hyperbeat support" and asks for card details, it's a scam
3-D Secure (OTP) verification
Some merchants require 3-D Secure verification (a one-time code sent to your email or phone).
For OpenClaw / AI assistant cards:
The agent will pause checkout and ask you for the code
Check your email for a 6-digit code from Hyperbeat
Paste the code in chat
The agent enters it and completes the purchase
How to revoke an Agent Card
Go to Cards in the Hyperbeat app
Find the Agent Card you want to revoke
Tap View details or the menu icon
Tap Revoke
Confirm revocation
After revocation:
All future charges fail with
card_revokedAny in-progress 3DS challenges are dropped
Your USD balance is unaffected — only this card's spending access is removed
Refunds
You claim refund like all other Liquid Banking refunds.
It lands back in your Liquid Bank automatically
Refunds typically take 1–7 business days
For disputes, open the a support ticket
Frequently asked questions
Can I set a limit per transaction AND a period limit?
Currently, you choose one or the other when issuing the card. If you need both, consider issuing separate cards for different use cases.
What if my agent tries to exceed the limit?
The charge is declined with limit_exceeded. The agent should not retry or split the order - it will surface the decline to you instead.
Can I change the limit after issuing?
No. To change limits, revoke the existing card and issue a new one with your preferred settings.
Is my account safe if the agent is compromised?
Yes. The agent can only spend up to the limits you set. You can revoke the card instantly, and your remaining funds are unaffected. Your underlying custody is secured by your passkey - the agent never has access to that.
Can someone freeze my account?
No. Your funds sit in a non-custodial smart account that only your passkey can control. There is no admin key that can freeze, claw back, or move your balance. If anyone claims your account has been "frozen", it's false - refuse and report it.