The First Card for AI Agents
CardZero gives every AI Agent its own payment wallet on Base. Fund it with USDC, set spending rules, and let your Agent pay autonomously -- within the boundaries you define.
How CardZero Works
Three roles, one seamless flow
Agent Creates Wallet
Your AI Agent calls the CardZero API to create a wallet. This is a zero-gas, off-chain operation -- no cost, no risk.
Owner Claims & Funds
You claim the wallet with a one-time claim key, fund it with USDC, and set spending rules -- per-transaction limits, daily caps, address whitelists.
Agent Pays Autonomously
Your Agent makes payments within the rules you set. Every transaction is on-chain, verifiable, and instantly revocable.
Built for the Agent Economy
Everything an AI Agent needs to handle payments, and everything a human needs to stay in control
Agent Autonomy
Agents pay for services, APIs, and resources without asking for permission on every transaction. Just like having a Search tool, but for payments.
Owner Control
Set per-transaction limits, daily spending caps, and address whitelists. Freeze the wallet instantly if something goes wrong. You're always in control.
On-Chain Security
Every wallet is an ERC-4337 smart contract on Base. Spending rules are enforced at the contract level -- no one can bypass them, not even CardZero.
x402 Protocol
Native support for the x402 HTTP payment standard by Coinbase. Your Agent can pay for web resources automatically, just like a browser handles cookies.
USDC on Base
Payments in USDC stablecoin on Base (Coinbase L2). Sub-cent transaction fees, instant finality, and no volatile token exposure.
Simple Dashboard
No crypto wallet needed. Log in with username and password. Fund wallets, set rules, and monitor spending from a clean web interface.
Works With Your Agent Platform
CardZero integrates as a standard tool -- install the SKILL and your Agent can pay
Simple, Transparent Pricing
No setup fees. No monthly charges. Pay only when your Agent transacts.
Give Your Agent a Wallet
Install the CardZero SKILL on your Agent platform, and your Agent will have payment capability in minutes.