Agent Cards Skill

agent-card skill

Give your AI agent a debit card. [Agent Cards](https://agentcard.sh) lets AI agents create and spend prepaid virtual Visa cards — each with a fixed budget, real card credentials, and full MCP integration. This skill teaches your agent how to use them.

Works with Claude Code, Codex, and any agent that supports [skills.sh](https://skills.sh).

Setup

1. Create an Agent Cards account

npx agent-cards signup

2. Connect the MCP server

**Option A — Automatic (Claude Code)**

npx agent-cards setup-mcp

This auto-configures Claude Code with the hosted MCP server. Restart Claude Code after running.

**Option B — Manual (any MCP client)**

Add to your MCP client config (Claude Desktop, Cursor, etc.):

{
  "mcpServers": {
    "agent-cards": {
      "url": "https://mcp.agentcard.sh/mcp",
      "headers": {
        "Authorization": "Bearer "
      }
    }
  }
}

Get your JWT from `~/.agent-cards/config.json` after signing up.

See the [MCP server repo](https://github.com/agent-cards/mcp) for more options (stdio, self-hosted, etc.).

3. Install the skill

npx skills add agent-cards/skill

What it does

Once installed, your agent knows how to:

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Usage

Use the `/agent-card` slash command in Claude Code:

/agent-card

Or just ask naturally — the skill activates when your agent detects card management intent.

Example prompts

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MCP Tools

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