How I Gave My AI Agent a Real Credit Card in 30 Seconds

#ai #fintech #webdev #tutorial

What if your AI agent could pay for things on its own?

Not mock payments. Not test mode. A real MasterCard card that works at any merchant, created by your AI agent in seconds.

That's what I built. Here's how you can try it right now.

The Problem

AI agents are getting good at doing things -- browsing, coding, writing. But they can't buy things. Every time an agent needs to make a purchase (book a server, buy an API key, order supplies), a human has to step in.

That's the bottleneck.

The Solution: ASG Card

ASG Card gives AI agents their own virtual MasterCard cards. The agent creates a card, funds it with USDC on Stellar, and uses it anywhere MasterCard is accepted.

No KYC. No human in the loop. Just a CLI command.

Try It Now (30 seconds)

npx @asgcard/cli onboard -y --client codex

That's it. This will:

[OK] Generate a Stellar wallet
[OK] Configure MCP for your AI client (Claude, Codex, or Cursor)
[OK] Install the ASG Card skill
[OK] Show you how to fund and create your first card

How It Works

1. Create a wallet

npx @asgcard/cli wallet create

2. Fund it with USDC

Send USDC on Stellar to your wallet address (shown by wallet info).

3. Create a card

npx @asgcard/cli card:create -a 50 -n "My AI Agent" -e you@email.com```
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Your agent now has a **real virtual MasterCard** with $50 on it.

### 4. Let your AI agent use it

Once MCP is configured, your AI agent can:
- Create new cards
- Check balances
- View transaction history
- Fund cards with more USDC

All autonomously. No human approval needed.

## The x402 Protocol

Under the hood, payments use the **x402 protocol** -- an HTTP-native payment standard where the payment instruction is carried in the HTTP {% raw %}`402 Payment Required`{% endraw %} response header.

The CLI builds a Stellar transaction locally, signs it with your wallet key, and submits it through the x402 facilitator. The card is created instantly after payment confirmation.

## Pricing

- Card issuance: **$10 flat**
- Top-up: **3.5% fee**
- Card amounts: **$5 - $5,000**

## What Can You Build?

- * Shopping agents that buy supplies autonomously
- * DevOps agents that provision cloud infrastructure
- * Research agents that purchase API access on demand
- * Ad agents that manage ad spend across platforms

## Get Started
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```bash
npx @asgcard/cli onboard -y --client codex

* asgcard.dev
* npm: @asgcard/cli- * GitHub
* Star us if this is useful!

What would you build with AI agents that can pay for things? Drop a comment below!

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