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Sign in

agent-cards signup        # Sign up or sign in via magic link
agent-cards login         # Same as signup
Both send a magic link to your email — click it to finish. Then: 
agent-cards whoami        # Show the currently signed-in email
agent-cards logout        # Log out and clear stored credentials

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Account mode

New accounts start in test mode. Show or change the mode with: 
agent-cards mode          # Show the current mode
agent-cards mode prod     # Switch to live cards (charges your real payment method)
agent-cards mode test     # Switch back to sandbox cards
Test mode issues sandbox cards with no real charges and is not usable at real merchants. See Test mode for details.

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Connect your agent

Configure the AgentCard MCP server in Claude Code in one step: 
agent-cards setup-mcp
Restart your agent session afterward so the tools load. Full instructions and other clients are in MCP setup.

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Connected apps

See and revoke third-party apps that have connected to your account via OAuth: 
agent-cards connections                  # List connected apps (default)
agent-cards connections revoke <clientId>   # Revoke an app's access (-y to skip confirmation)

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Update the CLI

agent-cards update
The CLI also checks for updates automatically before each command.