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Versioning

The current public namespace is v1, and the version lives in the path. Only the QA base URL is available; the production host remains reserved for separate future planning.

How to evolve safely​

  • Treat new fields as optional until your parser is resilient.
  • Persist only the fields that belong to your own internal contract.
  • Read the changelog before adopting new routes, enums or response fields.

The official current download is available at https://docs.mupag.com.br/openapi/public-v1.yaml.

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Frequently asked questions

How do I start integrating?

Follow the quickstart, configure the QA environment and create your first test charge.

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My PIX payment is pending. What now?

Confirmation is asynchronous. Check the charge status and webhook events before fulfilling the order.

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How do I receive payment notifications?

Register a webhook endpoint, verify its signature and handle duplicate events safely.

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How do subscriptions work?

Read the subscriptions guide to configure recurring billing and follow the charge lifecycle.

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Where can I find authentication help?

See how to use environment credentials in the documentation. Never share your key in chat.

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