RACKS MCP Server

Payment infrastructure for AI agents via Model Context Protocol.

Issue single-use virtual cards, check budgets, view transactions, and validate purchases — all from Claude Desktop or any MCP-compatible client.

Quick Start

1. Get Your Credentials

Sign up at rackspay.com/dashboard, create an agent, and copy your API key and agent ID.

2. Install

npm install -g @racks/mcp-server

Or run directly with npx:

npx @racks/mcp-server

3. Configure Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "racks-payment": {
      "command": "npx",
      "args": ["-y", "@racks/mcp-server"],
      "env": {
        "RACKS_AGENT_API_KEY": "your-api-key-here",
        "RACKS_AGENT_ID": "your-agent-id-here"
      }
    }
  }
}

Restart Claude Desktop. You should see the RACKS tools available in the tools menu.

4. Try It

Ask Claude:

• "Check my RACKS budget"
• "Buy a domain on Namecheap for myproject.com if it's under $15"
• "Show me my recent transactions"

Available Tools

| Tool | Description | |------|-------------| | racks_issue_card | Request a single-use virtual card for a purchase | | racks_check_budget | Check current spend and remaining balance | | racks_get_transactions | View transaction history | | racks_validate_transaction | Pre-validate a purchase without issuing a card |

Environment Variables

| Variable | Required | Description | |----------|----------|-------------| | RACKS_AGENT_API_KEY | Yes | Your agent's API key from the dashboard | | RACKS_AGENT_ID | Yes | Your agent's UUID from the dashboard | | RACKS_API_URL | No | API endpoint (default: https://api.rackspay.com) |

How It Works

Claude Desktop (MCP Client)
    ↓ [tool call: racks_issue_card]
RACKS MCP Server (this package)
    ↓ [POST /api/v1/agent/cards/request]
RACKS API (api.rackspay.com)
    ↓ [Budget validation → Card issuance]
Stripe Issuing
    ↓ [Virtual card details]
Claude receives card → fills payment form → purchase complete

Each card is single-use and self-destructs after the transaction. Budget limits are enforced in real-time. Every transaction is logged with a full audit trail.

Development

# Clone and install
git clone https://github.com/racks-ai/racks-mcp-server.git
cd racks-mcp-server
npm install

# Run in development mode
RACKS_AGENT_API_KEY=your-key RACKS_AGENT_ID=your-id npm run dev

# Build for production
npm run build

Also Available

• OpenClaw Skill: racks-payment skill for OpenClaw agents
• REST API: Direct integration via api.rackspay.com/docs
• Python SDK: Coming Q2 2026
• TypeScript SDK: Coming Q2 2026

Links

• RACKS Documentation
• API Reference
• Dashboard
• MCP Protocol

License

MIT — Racks AI, Inc.