The Orders API for Checkout API now returns the 429 Too Many Requests error ("usage_quota_exceeded") to indicate that the per-client request limit has been reached. For more information about the error and how to resolve it, see the Possible errors documentation for Checkout API integration.

Added

• Offline mode: generate complete integration code without authentication, using bundled plugin files with official Mercado Pago documentation.
• Automatic product and country detection: identifies product and country from natural language input (e.g., "integrate Checkout Pro for Brazil").
• "/mp-test-cards [country]" command: retrieve test cards by country without login (BR, AR, MX, etc.).
• "create_application" tool: create new applications from the plugin wizard (requires login).
• Windows support: compatibility with Windows environments.
• Multilingual responses: responds in Spanish, Portuguese, or English based on the language of the query.

Changed

• Authentication requirement: login (OAuth) is now required only for account-specific actions: "application_list", "get_credentials", "create_test_user", "add_money_test_user", "search_documentation", "save_webhook", "notifications_history", "quality_checklist", "form_homologation", "create_application".

Fixed

• Bug fixes and security improvements.

Fixed

• "capture" parameter: now sent only when the "--capture" flag is passed. It was previously included in all "mpcli payments create" requests, affecting methods that don't support it and overriding "--data" values. Review your calls if you relied on it being sent automatically.
• Financial reports: fixed the endpoints for "mpcli reports releases list" and "settlements list", which returned errors on accounts with existing reports.

Removed

• "listen", "trigger", "events", and "logs" commands: removed as they are not available for general use.

In Checkout API via Orders, we have included PSE (Pagos Seguros en Línea) as a payment method available for integration.

PSE is the most widely used electronic payment system in Colombia, allowing consumers to make online purchases and pay bills directly from their checking or savings accounts (debit) in real time. It acts as a secure bridge between banks and merchants, eliminating the need for credit cards.

In addition, we have also updated our API Reference to include PSE among the available payment methods, as well as its corresponding required parameters: additional_info.payer.ip_address (the buyer's IP address from which the payment is generated), config.online.callback_url (the URL to which the buyer will be redirected after completing the payment on the bank's page. It must not be null or empty and must be no longer than 512 characters), and transactions.payments.payment_method.redirect_url (the URL to which the buyer must be redirected to complete the payment flow on the selected bank's platform).