Mercado Pago MCP

Overview

This node integrates with the Mercado Pago MCP (Mercado Pago's API platform) to manage webhooks among other resources. Specifically, for the Webhook - Get operation, it retrieves detailed information about a specific webhook by its ID. This is useful when you want to verify the configuration or status of an existing webhook registered in your Mercado Pago account.

Common scenarios include:

• Auditing webhook configurations to ensure they are set up correctly.
• Fetching webhook details before updating or deleting them.
• Debugging webhook issues by inspecting their current settings.

Example: You have a webhook ID and want to retrieve its URL and subscribed events to confirm it matches your expected setup.

Properties

Output

The node outputs a JSON object containing the webhook details retrieved from Mercado Pago. The structure includes fields such as:

• type: A string indicating the type of response, e.g., "webhook_retrieved".
• webhook: An object with the webhook's data, typically including:
  • id: The webhook ID.
  • url: The endpoint URL configured for the webhook.
  • events: An array of event objects the webhook listens to, each with a topic property.
• success: Boolean indicating if the operation was successful.
• timestamp: ISO timestamp of when the response was generated.

Example output snippet:

{
  "type": "webhook_retrieved",
  "webhook": {
    "id": "123456",
    "url": "https://example.com/webhook-endpoint",
    "events": [
      { "topic": "payment" },
      { "topic": "plan" }
    ]
  },
  "success": true,
  "timestamp": "2024-06-01T12:00:00.000Z"
}

No binary data is involved in this operation.

Dependencies

• Requires an API key credential for Mercado Pago MCP with appropriate permissions.
• Uses the Mercado Pago REST API endpoint https://api.mercadopago.com/v1/webhooks/{webhookId}.
• Requires network access to Mercado Pago's API.
• The node expects the credential to provide an access token used in the Authorization header.

Troubleshooting

• Invalid Webhook ID: If the provided webhook ID does not exist or is malformed, the API will return an error. Ensure the webhook ID is correct.
• Authentication Errors: Missing or invalid API credentials will cause authorization failures. Verify that the API key credential is valid and has necessary scopes.
• Network Issues: Connectivity problems can prevent reaching Mercado Pago's API. Check internet connection and firewall settings.
• API Rate Limits: Excessive requests may be throttled by Mercado Pago. Implement retries or backoff strategies if needed.
• Error Messages: The node throws errors with messages from the API or internal exceptions. Use the error message to diagnose issues; common messages include "Not Found" for invalid IDs or "Unauthorized" for credential problems.

Links and References

• Mercado Pago Webhooks API Documentation
• Mercado Pago Developer Portal
• n8n Documentation on Credentials

This summary covers the static analysis of the node’s execute method focusing on the Webhook resource and Get operation as requested.