# Visa CLI

> Give your AI agent a Visa card.

Visa CLI is an MCP server that adds payment capabilities to Claude Code and other MCP-compatible AI clients. Install with `npm install -g @visa/cli`, run `visa-cli setup`, and your agent can generate images, music, query crypto prices, and pay merchants.

## Docs

- [Getting Started](https://visacli.sh/docs): Your AI agent gets a Visa card. It can buy images, music, data — anything behind a paywall. Every purchase requires your authorization before money moves.
- [How It Works](https://visacli.sh/docs/how-it-works): Your machine handles identity. The Visa CLI server handles money. Your card number does not leave the encrypted vault.
- [Tools](https://visacli.sh/docs/tools): Every tool available in Visa CLI and what it costs. The server picks the payment method automatically.
- [Recipes](https://visacli.sh/docs/recipes): Copy any of these prompts straight into your AI agent. Each one shows what it costs and how many approvals to expect.
- [Security](https://visacli.sh/docs/security): Your card number does not leave the encrypted vault. Server-side spending limits. Single-use authorization tokens.
- [Errors](https://visacli.sh/docs/errors): Every error message, what it means, and how to fix it.

## Machine-Readable

- [Agent Technical Reference](https://visacli.sh/agents.txt): Auth flow, API endpoints, tool schemas, protocol specs
- [Full Documentation](https://visacli.sh/llms-full.txt): Complete docs in plain text