USDC on Base

Give your AI agent a crypto-funded Visa card

Fund a virtual card with USDC. Hand the number to any AI agent via MCP. Spend anywhere Visa is accepted. No bank account. No card fees. Instant settlement.

stablecard-cli
$ stablecard fund --amount 50 --chain base
// Sending 50 USDC from wallet...
Card funded. txn: 0x8f2a...c41d
 
$ stablecard reveal sc_card_7x9k
PAN 4242 8888 1234 5678
CVV ***
EXP 03/27
BAL $50.00 USDC
 
// Ready for your agent.
How It Works

Two commands. Your agent handles the rest.

Fund from your wallet. Your agent spends within the limits you set. Unused funds return to your wallet automatically.

01
Connect Wallet
Link your existing wallet. Supports MetaMask, Rainbow, Coinbase Wallet, or any EVM wallet.
02
Fund with USDC
Send USDC on Base to create a virtual Visa card. Set the amount. One transaction, instant issuance.
03
Hand to Agent
Expose card details via MCP. Claude, GPT, or any MCP-compatible agent can read and use them.
04
Agent Spends
Your agent buys APIs, services, subscriptions. You approve. Unused funds auto-refund to your wallet.
Why Crypto

Cards are the bottleneck

AI agents operate globally, 24/7. Traditional card funding doesn't.

Legacy Rails

Credit Card Funding

  • - 2-3% card processing fees on every fund
  • - Requires a bank account and credit history
  • - Settlement takes 1-3 business days
  • - Geographic restrictions and fraud flags
  • - Business hours and banking holidays matter
StableCard

USDC Funding

  • + Near-zero funding cost on Base L2
  • + Just a wallet. No bank, no KYC for funding
  • + Instant settlement, onchain confirmation
  • + Borderless. Works from any country
  • + 24/7/365. No banking hours
Built for Agents

Everything your agent needs to spend

MCP-native. Scoped spend limits. Full audit trail onchain.

🔗

MCP Integration

One config block in Claude, Cursor, or any MCP client. Your agent sees balances, creates cards, and checks transactions.

🔒

Scoped Limits

Each card has a hard spending cap. Your agent proposes, you approve. No runaway spending.

⛓

Onchain Audit

Every fund and refund is an onchain transaction. Full transparency. Verify on Basescan.

🌐

Global by Default

USDC is borderless. Your agent can spend from anywhere, on anything that accepts Visa.

⚡

Instant Cards

Fund a card in one transaction. No waiting for approval, verification, or processing. USDC in, card out.

🔄

Auto Refund

Unused balance returns to your wallet when the card expires or is closed. Your USDC, your control.

The payment layer
agents deserve

Agents are autonomous. Their money should be too. StableCard is building the crypto-native spending infrastructure for the agentic economy.