@coinbase/payments-mcp

A TypeScript-based npx installer for the payments-mcp project, providing seamless integration with stdio-compatible MCP clients for agentic payments via x402 and the x402 Bazaar.

Quick Start

1) Install payments-mcp:

npx @coinbase/payments-mcp

2) Select your MCP client:

During installation, you'll be prompted to choose which MCP client you're configuring:

• Claude - Claude Desktop application
• Claude Code - Claude Code CLI
• Codex - OpenAI Codex CLI
• Gemini - Google Gemini CLI
• Other - Other MCP-compatible tools

3) Automatic Configuration (Optional):

The installer supports automatic configuration for compatible MCP clients.

You'll be prompted during installation, or you can:

# Automatically configure without prompting
npx @coinbase/payments-mcp --client claude --auto-config

# Skip automatic configuration
npx @coinbase/payments-mcp --client claude --no-auto-config

4) Manual Configuration (If Needed):

If you skip automatic configuration, detailed setup instructions will be displayed.

Example Configuration:

{
  "mcpServers": {
    "payments-mcp": {
      "command": "node",
      "args": ["/Users/your-home-dir/.payments-mcp/bundle.js"]
    }
  }
}

Usage

Commands

# Default installation (same as 'install')
npx @coinbase/payments-mcp

# Explicit install command
npx @coinbase/payments-mcp install

# Force reinstallation (even if up to date)
npx @coinbase/payments-mcp install --force

# Check installation status
npx @coinbase/payments-mcp status

# Uninstall payments-mcp
npx @coinbase/payments-mcp uninstall

# Enable verbose logging for any command
npx @coinbase/payments-mcp install --verbose

Options

• --client, -c <client>: Specify MCP client to configure (claude, claude-code, codex, gemini, other)
• --auto-config: Automatically configure the MCP client without prompting (for supported clients)
• --no-auto-config: Skip automatic configuration prompt
• --verbose, -v: Enable detailed logging output
• --force, -f: Force reinstallation even if already up to date
• --help, -h: Show help information

Supported MCP Clients

| Client | Value | Description | Auto-Config | |------|-------|-------------|-------------| | Claude Desktop | claude | Claude Desktop application | ✅ | | Claude Code | claude-code | Claude Code CLI tool | ✅ | | Codex CLI | codex | OpenAI Codex CLI tool | ✅ | | Gemini CLI | gemini | Google Gemini CLI tool | ✅ | | Other | other | Other stdio-compatible MCP clients | Manual only |

File Locations

• Installation Directory: ~/.payments-mcp/
• Logs: Displayed in terminal (use --verbose for detailed logs)

Troubleshooting

Common Issues

"Command not found" Error

• Ensure npm is in your system PATH
• Try running npm --version to verify npm installation

"Permission denied" Error

• On macOS/Linux: Check file permissions in the installation directory
• On Windows: Try running as administrator

"Module not found" Error

• Re-run the installer to download the latest version
• Use --force flag to force reinstallation

Network Issues

• Check your firewall and proxy settings

Debug Mode

For detailed troubleshooting information, run with verbose logging:

npx @coinbase/payments-mcp install --verbose

Getting Help

1. Check the status of your installation:

   npx @coinbase/payments-mcp status

2. View detailed logs with --verbose flag

3. For additional support, visit: GitHub Issues

Security

The Coinbase team takes security seriously. Please do not file a public ticket discussing a potential vulnerability. Please report your findings through our HackerOne program.

For more information, see our Security Policy.

License

Licensed under the Apache License, Version 2.0. See the LICENSE file for details.

Note: This installer is designed for the payments-mcp project and supports multiple MCP clients. For other MCP servers, please refer to their respective installation instructions.