Environments

Only sandbox is available. The live host appears in the contract as a reserved namespace; it does not represent an existing or operable environment.

Environment	Base URL	Key	Purpose
Sandbox	https://api.sandbox.mupag.com.br	sk_test_...	Development, mocked flows and staging validation
Reserved live	https://api.mupag.com.br	Unavailable	Do not use; it will be planned separately

Dashboard

The sandbox dashboard lives at https://qa.dashboard.mupag.com.br/app. Use it to inspect customers, products, subscriptions and dashboard-only workflows such as affiliates and payouts.

Prerequisites for future live planning

Completing these items in sandbox does not create or enable a live environment:

• Idempotency works under retries
• Webhook signature verification is in place
• Alerts cover 401, 409, 422, 429 and 5xx
• Logs keep request_id, charge_id and subscription_id
• Old secrets are removed from runtime and secret stores